PNEUMATIC CONVEYOR OVERVIEW

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "PNEUMATIC CONVEYOR OVERVIEW"

Transcription

1 PNEUMATIC CONVEYOR OVERVIEW conveying is the transport of dry granular or powdered material though a pipeline using air (or an inert gas) as the carrier. It is used extensively in industry where powders or granular material needs to be moved from one point in a factory to another which may be some distance away. The alternative method that this material could be conveyed would be via mechanical s such as belt s, screw s and bucket elevators. The type of is selected on the basis of suitability for an application as well as cost-effectiveness both in initial capital layout and running costs. These costs differ for the various methods described below. There are different types of s and can be broken down based on the material to air ratio (i.e. kg/material per kg/air). When this ratio is below 15 a system is deemed to be a lean phase in terms of little material in the airstream). a.) b.) (Roots Blower) Material Feed Hopper or Silo Air Filter Material Feeder (Rotary Vane Feeder) Conveying Line Filter Exhaust Fan Air and Solids Separation unit (Filter) Receiving Hopper Safety Filter (Roots Exhauster) Medium phase s run at air to material ratios between 15 and 25. Finally dense phase systems run at much higher material to air ratios > 25. c.) LEAN PHASE PNEUMATIC CONVEYORS For lean phase s a further differentiation is that the can be classified as a positive pressure (fig. 1b) or a vacuum (fig. 1a). In a positive pressure system the material is blown down the pipeline with the prime air mover located at the beginning of the system where the material is fed into the pipeline. For a vacuum system the prime air mover is an exhauster at the receiving end of the system with the material being sucked through the pipeline (much like a vacuum cleaner works). Both types have their merits. In particular where poisonous material is to be conveyed, lean phase vacuum conveying ensures that there is no material leakage to atmosphere in the event of bend or pipe wear. Positive pressure systems generally run with pressures up to 50kPa and for vacuum conveying down to 50kPa. d.) Cooler Vacuum s are limited due to the fact that the atmospheric pressure at sea level is kpa. That would be the maximum vacuum you could theoretically draw to get to an absolute vacuum. In practice sea level vacuum s run comfortably to -60kPa and at altitude (for example Johannesburg at 1750 masl has an atmospheric pressure of only 82 kpa) that reduces to around 50kPa. e.) (Compressor) Pressure Vessel Filter Exhaust Fan The primary mover on a lean phase is typically a positive displacement blower (or exhauster) such as a roots blower. Fans are not ideal for pneumatic conveying because the performance curve of a fan is such that the higher the pressure the lower the flow rate. This is exactly the opposite of what is required when there are pressure surges in the system. In that case you want to ensure that the flow rate does not drop off. Roots blowers have a minor change in volume flow rate through the pressure range and match the criteria of upholding the volume flow rate during a possible pressure surge. Figure 1: Typical configurations for pneumatic s The air blower must generate sufficient airflow to ensure that the air velocity in the pipeline is high enough for particles to remain in suspension during the conveying process. These speeds vary between m/s depending on the product. As a rule of thumb fine particles tend to be conveyed at higher velocities to remain in suspension where larger particles (for example dog food pellets) can be conveyed at much lower speeds. A controlled material feed into the pipeline is required to ensure that the runs 1

2 Figure 1: Typical feed arrangement on a lean phase pneumatic. This particular is for pulverised coal and incorporates features to prevent and/or contain a possible dust explosion. at a constant pressure (or vacuum) and at the same time the feed device must act as an airlock. Because the conveying line is under pressure at the infeed point air will tend to try and escape through the infeed point. Normally rotary airlocks or rotary vane feeders are used to control the flow and act as an airlock at the same time. Some air leakage occurs through the returning pockets of a rotary airlock as well as through the clearances around the rotor and this must be compensated for when selecting the blower to ensure that sufficient air goes down the pipeline after taking account the rotary airlock leakage which is lost to the conveying process. Figure 2: A typical cyclone and filter combination on a lean phase vacuum for high conveying rates At the receiving end some form of filtration is required. When the air and material mixture is blown into the receiver the filter is used to separate the material from the airstream. The material is dropped back into the receiver and the clean air is exhausted to atmosphere. The only exception would be where coarse particles such as clean plastic pellets are conveyed and there is no dust generation during the conveying process. In this case a cyclone is normally sufficient to separate the product from the air. When high feed rates are considered for a lean phase system it is possible to use a cyclone and filter combination (Figure 2). wall combined with friction pressure losses due to the carrier gas alone. For a fixed pipeline length the friction losses increase with an increase in material loading. For a constant feed rate the friction losses increase with an increasing length of pipeline. So lean phase conveying is used for moderate feed rates over shorter distances or a low feed rate over a longer distances. The only way to reduce the pressure loss is to increase the pipeline diameter and at some point that becomes uneconomical as the roots blower increases in size with an increase in pipeline diameter. The cyclone will drop out the bulk of the material and a minor amount of dust will then be transferred to the filter for final cleaning of the conveying air before it is vented to atmosphere. Standard filters used for this application are reverse jet pulse filters. These filters have an exhaust fan to draw the air though the filter and keep the receiver under a slight vacuum and compressed air is used to clean the filter bags periodically and drop the caked material back into the receiver. When comparing positive pressure to vacuum conveying systems the vacuum conveying system is generally more expensive due to the fact that the receiver and the filter casing need to be re-enforced to withstand high negative pressures to prevent imploding. Furthermore, more air is required to move material in vacuum s due to the fact that the air is at a lower density under vacuum. This means that the roots exhauster on a vacuum conveying system may be one size larger than the blower used on an equivalent positive pressure conveying system. Lean phase systems are generally cost effective for lower feed rates and shorter distances (<15 t/hr and up to 200m distance). The system parameters that are responsible for the pressure loss along the pipeline is firstly the tonnage rate of material that is fed though the pipeline and the distance of the pipeline. Pressure loss is created by friction losses of the material against the pipeline MEDIUM PHASE PNEUMATIC CONVEYORS Generally medium phase pneumatic s will run at pressures in excess of 60kPa. The material to air ratio is higher 2

3 and the increase in pressure is used to overcome additional friction losses due to the settling of particles in a pipeline that need to be re-entrained. Medium phase s often run in what is called a dune-flow mode. Material settles on the pipe floor (in horizontal pipes) and start to flow in waves resembling moving dunes along the bottom of the pipeline. One issue with medium phase s is the increase in wear on in such as rotary feeders as a result of the higher pressure differential across the feeder. An increase in differential pressure increases the velocity of leakage through the rotor clearances. Coupled with material particles that are also entrained in this leakage air it creates a sand-blasting effect in the valve which can rapidly erode rotary feeder casings and impeller tips. At the same time twin stage roots blowers or compressors are required to generate the pressure required for the conveying process. are deemed Pressure Equipment and need to comply to SANS 347. When moving beyond pressures of 50kPa for conveying it becomes financially viable to go to full dense phase conveying instead. DENSE PHASE PNEUMATIC CONVEYORS Dense phase s (fig. 1 e) with high material to air ratios and conveying pressures up to 6 bar become cost effective at higher feed rates and longer distances (> 15 t/hr and distances greater than 150m). Material is conveyed down the pipeline in dense slugs and low velocities. Distances over 3000m have recently been achieved conveying cement to an underground batching plant in a Gold mine. Dense phase feeding technology (discussed in the next section) can be utilised for feeding material into the pipeline but the technology becomes more expensive. Bear in mind also that any conveying process with pressures in excess of 50kPa become subject to the Pressure Equipment Regulation (PER) in South Africa which means that vessels and equipment used for this process Figure 4: Typical dense phase vessel Dense phase conveying technology uses a certified pressure pot that is filled with the material to be conveyed. The pot is then sealed and pressurised to the conveying pressure before a valve is opened and the aerated material allowed to flow down the conveying pipe. At the same time that the material is moved down the pipeline, additional air can be fed into the system to keep the conveying pressure stable. Figure 3: Typical baghouse using a lean phase pneumatic with multiple feed points into the conveying pipeline The process is a batching process and in order to use this technology for a continuous infeed one would need to place an intermediate storage hopper above a single conveying vessel or use a tandem vessel where one vessel is used for conveying while the second is being filled. 3

4 COMPARISON CHART: vs. s (dense Conveying Distance < 200m) < 100m) < 3000m) Capital Cost Maintenance Cost Maintenance Effort Operating Costs low low low high medium low medium high mediumhigh medium medium high long (> 50m) high high high low Discharge End Advantage Disadvantage Limited in distance and conveying rate, possible wear Limited in distance and conveying rate, possible wear medium low low high medium low medium high (dense high medium medium high medium high high low short (L < 10m) high low low high short (L < 10m) high low medium high (dense short (L < 10m) high medium medium high short (L < 10m) low medium medium low Table 1: Cost comparison versus systems Traditionally manufacturers claim that this method of conveying is ideal for abrasive materials as a result of the low conveying velocities associated with dense phase conveying (typically below 10 m/s). This major selling point is only true when utilising a stepped conveying pipeline. Compressed air at the conveying pressure in the pressure pot (say at 6 bar) expands as it moves down the pipeline to the exit point which is normally at atmospheric pressure. If the pipe diameter remains constant over the distance, the material will rapidly accelerate with expanding air towards the discharge. Where the initial velocity may be 5 m/s, the conveying velocity at the end of a constant diameter pipeline may reach speeds up to 45 m/s. At 45 m/s pipes and bends have an extremely short life span. A properly engineered solution increases the pipe diameter as the air and material travel down the line, dropping the velocity every time the air and material passes an expansion. The core of the system design hinges on determining exactly where the expansion points need to be to keep conveying velocities in check. Dense phase s are ideal for fine powdered products. When switching to granular material there is a problem with air bypassing the material through relatively large interstitial spaces 4

5 between the product particles. In this case it is necessary to inject additional air at points along the pipeline to keep the conveying process stable. The primary air mover for dense phase s is a compressor to produce dry compressed air a minimum pressure of 6 bar. Running and capital costs for dense phase s are generally higher than that of a lean phase. SELECTING A CONVEYOR Selection between using a pneumatic compared to a mechanical is subject to various considerations. In general the table 1 summarises the costs of each system in a direct comparison. Selections between the types of pneumatic s are driven by technical requirements as well as running and capital costs. A big factor that also influences the selection of a pneumatic is the actual velocity at which the product is conveyed. Lean phase s are generally not used for fragile products and with products where material breakage and degradation cannot be tolerated. Dense phase s are often used instead as the initial conveying velocity of 5m/s is gentle on the product and the lower velocities reduce material degradation. Stepped pipelines must be used to ensure low conveying velocities are maintained throughout the pipeline. Potentially explosive, flammable or hygroscopic materials can be conveyed in closed loop systems (fig. 1 d) running on Nitrogen instead of air as the carrier gas. Nitrogen is aspirated from a bladder that is kept at a constant pressure by bleeding additional Nitrogen into the bladder from the Nitrogen source. At the same time the Nitrogen exhausted from the filter at the end of the conveying process is fed back into the bladder as well to reduce the usage of Nitrogen. Intercoolers are required to keep the recirculated carrier gas temperature at an acceptable level for aspiration back into the roots blower. Some products require cooling of the air after the blower to ensure the product does not melt or become sticky. Sugar is a prime example where an intercooler is typically installed between blower and feeding point. On other products additional heating may be required after the blower to prevent the conveying air cooling down below the dew point as it moves material through the pipeline. long distances without the possibility of material theft along the way. The double pneumatic flap valve also makes it possible to feed multiple points into a single positive pressure lean phase conveying line. This allows the technology to be applied to a multiple outlet filter baghouse with up to 10 outlets feeding into the same conveying line and at the same time keeping the air leakage back into the baghouse to a minimum. DESIGN PARAMETERS REQUIRED FOR THE SELECTION OF A PNEUMATIC CONVEYOR 1. Material to be conveyed 2. Particle distribution of the material 3. Bulk density of the material 4. Feed rate of the material 5. Temperature of the material 6. Moisture content of the material 7. Number of infeed points into the 8. Horizontal distance to be conveyed 9. Vertical distance to be conveyed 10. Number of bends 11. Site altitude 12. Where is the feed coming from? 13. Where is the feed discharging to? 14. Is a filter available at the discharge point and if so what type and what is the filter bag surface area? 15. Is the material potentially flammable, explosive or toxic? PRACTICAL DESIGN SUGGESTIONS Conveying lines should preferably be either horizontal or vertical. Inclines (especially upward conveying inclines) should be avoided. Conveying up incline pipes on lean phase s tends to lead to surging. Acceleration lengths must be allowed for between the infeed point and the first bend as well as between bends. A rule of thumb is to use at least times the pipe diameter for acceleration distance. Long radius bends with a radius equivalent to at least 10 pipe diameters should be used to minimise bend pressure drops. Pipes should have a smooth bore to prevent unnecessary flow turbulences that can cause unexpected pipe wear. Novel methods of feeding the material through a double pneumatic flap valve into a blowline allows coarse material such as diamond bearing gravel to be conveyed in a lean phase pneumatic. This allows the product to be conveyed securely over Techmatic Engineering (Pty) Ltd. 1 Granite Drive Kya Sands Business Park Kya Sand Ext Tel: +27 (0) Techmatic Industrials (Pty) Ltd. 15 Cowies Park 3 Oliver Road Pinetown Tel: +27 (0)

Pneumatic Conveying Principles BSH&E SEMINAR

Pneumatic Conveying Principles BSH&E SEMINAR Pneumatic Conveying Principles Definition What is Pneumatic Conveying? A method for conveying bulk material using gas (usually air) The material can be blown (pressure systems) or sucked (vacuum systems)

More information

Maintenance and Troubleshooting of Pneumatic Conveying Systems for Sand in a Foundry

Maintenance and Troubleshooting of Pneumatic Conveying Systems for Sand in a Foundry Maintenance and Troubleshooting of Pneumatic Conveying Systems for Sand in a Foundry Article Takeaways: Chris Doerschlag President ALB Klein Technology Group www.albkleinco.com 1. Troubleshooting Guide

More information

At the end of this lesson, you will be able to do the following:

At the end of this lesson, you will be able to do the following: Liquid-Phase Contacting Scrubbers Goal To familiarize you with the operation, collection efficiency, and major maintenance problems of liquid-phase contacting scrubbers. Objectives At the end of this lesson,

More information

Selection of gas compressors: part 2

Selection of gas compressors: part 2 36 Compressors Selection of gas compressors: part 2 In this multipart series, Eduardo Larralde and Rafael Ocampo aim to provide a comprehensive survey of the current state of the art concerning gas Following

More information

Application of Double Vs Tandem Dry gas seal Advantages.

Application of Double Vs Tandem Dry gas seal Advantages. Application of Double Vs Tandem Dry gas seal Advantages. John Sears WW Director, Compressor Products. Flowserve Corporation. Unit #2207, 220 Fisher Street, SE, Calgary, Alberta, T2H 2H8 Canada; World Wide

More information

INTERLOCKED METAL HOSE

INTERLOCKED METAL HOSE INTERLOCKED METAL HOSE HOSE FUNDAMENTALS Penflex interlocked metal hoses are made for a variety of specialized industrial applications and are available in a wide range of metals, styles and sizes. Interlocked

More information

GRAVITY FLOW DILUTE PHASE PNEUMATIC CONVEYING DENSE PHASE PNEUMATIC CONVEYING ORIFICE GATE. Handles powders, granules and pellets

GRAVITY FLOW DILUTE PHASE PNEUMATIC CONVEYING DENSE PHASE PNEUMATIC CONVEYING ORIFICE GATE. Handles powders, granules and pellets The Vortex Quantum Orifice Gate is specifically engineered to handle dry bulk solids in gravity flow, dilute phase, or vacuum conveying systems with pressures up to 15 psig (1 barg). Traditional slide

More information

Fine Powder Flow Phenomena in Bins, Hoppers, and Processing Vessels 1

Fine Powder Flow Phenomena in Bins, Hoppers, and Processing Vessels 1 Fine Powder Flow Phenomena in Bins, Hoppers, and Processing Vessels 1 by T. Anthony Royal and Dr. John W. Carson ABSTRACT Fine powders often exhibit significant twophase (solid/gas) interactions when they

More information

Low-Pressure Airjet-Filter MVRT

Low-Pressure Airjet-Filter MVRT Low-Pressure Airjet-ilter MVRT Dust-free operation. High reliability. Application The Low-Pressure Airjet-ilter MVRT with the two design versions of Side Removal and Top Removal is applied with advantage

More information

Exercise 4-2. Centrifugal Pumps EXERCISE OBJECTIVE DISCUSSION OUTLINE DISCUSSION. Pumps

Exercise 4-2. Centrifugal Pumps EXERCISE OBJECTIVE DISCUSSION OUTLINE DISCUSSION. Pumps Exercise 4-2 Centrifugal Pumps EXERCISE OBJECTIVE Familiarize yourself with the basics of liquid pumps, specifically with the basics of centrifugal pumps. DISCUSSION OUTLINE The Discussion of this exercise

More information

TUTORIAL. NPSHA for those who hate that stuffy word. by Jacques Chaurette p. eng. copyright 2006

TUTORIAL. NPSHA for those who hate that stuffy word. by Jacques Chaurette p. eng.  copyright 2006 TUTORIAL NPSHA for those who hate that stuffy word by Jacques Chaurette p. eng. www.lightmypump.com copyright 2006 page.2 NPSHA for those who hate that stuffy word This article follows the same approach

More information

Guided Wave Radar in Solid Level Applications

Guided Wave Radar in Solid Level Applications Technical Note Rosemount 5300 Series Guided Wave Radar in Solid Level Applications KEY POINTS Measuring Range Probe End Projection function (PEP) Tensile Strength and Collapse Load Mounting Considerations

More information

Precision Rotary Airlocks and Diverter Valves

Precision Rotary Airlocks and Diverter Valves Precision Rotary Airlocks and Diverter Valves Utilizing over 40 Years of Mac Process Bulk Material Conveying Technology Airlocks and Diverters Schenck Process offers a wide range of airlocks and diverter

More information

Inerting System Design for Medium Speed Vertical Spindle Coal Pulverizers TABLE OF CONTENTS

Inerting System Design for Medium Speed Vertical Spindle Coal Pulverizers TABLE OF CONTENTS Inerting System Design for Medium Speed Vertical Spindle Coal Pulverizers The PRB Coal Users Group plans to develop a Design Guide for Mill Inerting as an aid to users when designing a mill inerting system.

More information

Theoretical Modelling of Rotary Valve Air Leakage for Pneumatic Conveying Systems

Theoretical Modelling of Rotary Valve Air Leakage for Pneumatic Conveying Systems University of Wollongong Research Online Faculty of Engineering - Papers (Archive) Faculty of Engineering and Information Sciences 2002 Theoretical Modelling of Rotary Valve Air Leakage for Pneumatic Conveying

More information

COMPRESSED AIR SYSTEMS AND ENERGY SAVINGS

COMPRESSED AIR SYSTEMS AND ENERGY SAVINGS COMPRESSED AIR SYSTEMS AND ENERGY SAVINGS Denis Cooke, Denis Cooke & Associates Pty Limited www.decoa.com.au Phone (02) 871 6641 March 1994 DISCLAIMER The author makes no warranties whatsoever in connection

More information

Air Eliminator Series

Air Eliminator Series Air Eliminator Series Air Separation Equipment FILE NO: 9-1 DATE: August 2010 SUPERSEDES: 9-1 DATE: January 2009 Air Eliminator Series Air Separation Equipment Modern sealed heating and cooling systems

More information

A Twin Screw Combined Compressor And Expander For CO2 Refrigeration Systems

A Twin Screw Combined Compressor And Expander For CO2 Refrigeration Systems Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2002 A Twin Screw Combined Compressor And Expander For CO2 Refrigeration Systems N. Stosic

More information

Unit 24: Applications of Pneumatics and Hydraulics

Unit 24: Applications of Pneumatics and Hydraulics Unit 24: Applications of Pneumatics and Hydraulics Unit code: J/601/1496 QCF level: 4 Credit value: 15 OUTCOME 2 TUTORIAL 9 ACCUMULATORS The material needed for outcome 2 is very extensive so there are

More information

Chapter 1: Basic Concepts of Pneumatics

Chapter 1: Basic Concepts of Pneumatics Right of authorship: the content of the training (wording, drawings, pictures) are owned by the author. Any utilization except for individual use is allowed only after permission of the author. What is

More information

Pipeline Flooding, Dewatering and Venting Dr Aidan O'Donoghue, Pipeline Research Limited, Glasgow, Scotland

Pipeline Flooding, Dewatering and Venting Dr Aidan O'Donoghue, Pipeline Research Limited, Glasgow, Scotland Pipeline Flooding, Dewatering and Venting Dr Aidan O'Donoghue, Pipeline Research Limited, Glasgow, Scotland Abstract Flooding, cleaning, gauging, dewatering and venting of offshore oil and gas pipelines

More information

I.CHEM.E. SYMPOSIUM SERIES NO. 97 BUOYANCY-DRIVEN NATURAL VENTILATION OP ENCLOSED SPACES

I.CHEM.E. SYMPOSIUM SERIES NO. 97 BUOYANCY-DRIVEN NATURAL VENTILATION OP ENCLOSED SPACES BUOYANCY-DRIVEN NATURAL VENTILATION OP ENCLOSED SPACES M. R. Marshall* and P. L. Stewart-Darling* A simple mathematical model for the buoyancy driven ventilation of an enclosed space, using a two-pipe

More information

Wet scrubbers can be used for controlling. Wet Scrubbers for Dry Dust? Absolutely.

Wet scrubbers can be used for controlling. Wet Scrubbers for Dry Dust? Absolutely. As appeared in February 2014 APC Copyright CSC Publishing www.apcmag.net Wet Scrubbers for Dry Dust? Absolutely. Ron Hatton Sly Inc. Wet scrubbing in industrial processes sometimes can be an overlooked

More information

POP Safety Valve. POP Safety Valve INTRODUCTION DEFINITIONS

POP Safety Valve. POP Safety Valve INTRODUCTION DEFINITIONS POP Safety Valve POP Safety Valve INTRODUCTION The effects of exceeding safe pressure levels in an unprotected pressure vessel or system, can have catastrophic effects on both plant and personnel. Safety

More information

EXPLOSION VENTING OF BUCKET ELEVATORS

EXPLOSION VENTING OF BUCKET ELEVATORS EXPLOSION VENTING OF BUCKET ELEVATORS P Holbrow*, G. A. Lunn*, A. Tyldesley** *Health and Safety Laboratory, Harpur Hill, Buxton, Derbyshire, SK17 9JN **Health and Safety Executive,TD5, Magdalen House,

More information

LECTURE 1 THE CONTENTS OF THIS LECTURE ARE AS FOLLOWS:

LECTURE 1 THE CONTENTS OF THIS LECTURE ARE AS FOLLOWS: LECTURE 1 THE CONTENTS OF THIS LECTURE ARE AS FOLLOWS: 1.0 HOW AIR FLOWS IN MINES 2.0 CATEGORIZATION OF VENTILATION SYSTEM IN MINES 3.0 ELEMENTS OF PRIMARY VENTILATION SYSTEM 3.1 Downcast and Upcast 3.2

More information

Daily Investment on Pneumatic Conveyor

Daily Investment on Pneumatic Conveyor Daily Investment on Pneumatic Conveyor Pallav Chanakya Biswas Semester:- 7 th Roll no :- B03 / Session: 2017-18 Abstract:- Every pneumatic system, makes use of pipes or ducts called transportation lines

More information

Flex-Kleen CT Series Pulse-Jet Dust Collectors For high pressure/high vacuum applications

Flex-Kleen CT Series Pulse-Jet Dust Collectors For high pressure/high vacuum applications Bulletin CT Flex-Kleen CT Series Pulse-Jet Dust Collectors For high pressure/high vacuum applications CT (Circular Tank) COLLECTORS... especially effective for dusting problems in drying, grinding and

More information

System Pressure Manager Standard & System Pressure Manager Plus

System Pressure Manager Standard & System Pressure Manager Plus System Pressure Manager Standard & System Pressure Manager Plus Installation, Commissioning & Servicing Instructions Note: THESE INSTRUCTIONS MUST BE READ AND UNDERSTOOD BEFORE INSTALLING, COMMISSIONING,

More information

Mechanical Seal Piping Plans

Mechanical Seal Piping Plans Mechanical Seal Piping Plans Single Seals plans 01, 02, 11, 13, 14, 21, 23, 31, 32, 41 Dual Seals plans 52, 53A, 53B, 53C, 54 Quench Seals plans 62, 65 Gas Seals plans 72, 74, 75, 76 Mechanical Seal Piping

More information

Weighing and receiving hopper MSBA

Weighing and receiving hopper MSBA Weighing and receiving hopper MS Modular design. Versatile and flexible. pplications MS weighing and receiving hoppers are designed for weighing, transferring, and receiving products in bakeries, blending

More information

Oxygen Usage Best Practice Guide

Oxygen Usage Best Practice Guide Oxygen Usage Best Practice Guide 1. Introduction Oxygen enriched systems possess a risk of fire and explosion since ignition and combustion hazards are present in all oxygen systems, and oxygen related

More information

DOUBLE-FLAPGATE AIRLOCK VALVES

DOUBLE-FLAPGATE AIRLOCK VALVES DOUBLE-FLAPGATE AIRLOCK VALVES t r a d i t i o n e x p e r t i s e r e s p o n s i v e n e s s l e a d e r s h i p MEYER ENGINEERS AND PRODUCES DOUBLE-FLAPGATE AIRLOCK VALVES TO WITHSTAND YOUR TOUGHEST

More information

THE EXTERNAL EXPLOSION CHARACTERISTICS OF VENTED DUST EXPLOSIONS.

THE EXTERNAL EXPLOSION CHARACTERISTICS OF VENTED DUST EXPLOSIONS. THE EXTERNAL EXPLOSION CHARACTERISTICS OF VENTED DUST EXPLOSIONS. D Crowhurst, S A Colwell and D P Hoare Fire Research Station, Building Research Establishment, Garston, Herts, WD2 7JR Crown copyright

More information

Gas Injection for Hydrodynamic Slug Control

Gas Injection for Hydrodynamic Slug Control Proceedings of the IFAC Workshop on Automatic Control in Offshore Oil and Gas Production, Norwegian University of Science and Technology, Trondheim, Norway, May 3 - June, ThB.4 Gas Injection for Hydrodynamic

More information

Inflatable Packer Single & Double. Single & Double Packer Dimension. Wireline Packer. Water Testing Packer (WTP) Packer

Inflatable Packer Single & Double. Single & Double Packer Dimension. Wireline Packer. Water Testing Packer (WTP) Packer Inflatable Packer Single & Double Single & Double Packer Dimension Wireline Packer Water Testing Packer (WTP) Packer Packer Working Pressure & Depth Chart Packer Water Hand Pump Packer Air Driven Pump

More information

ENGINEERING AUSTRALIA PTY. LTD.

ENGINEERING AUSTRALIA PTY. LTD. POWERTECH ENGINEERING AUSTRALIA PTY. LTD. 15 Lorikeet Street, Terrigal NSW 2260 AUSTRALIA. ACN 102 392 558 Phone: (61) 02 4384 6000. Fax: (61) 02 4384 6200. ABN 63 102 392 558 Email: powerteche@bigpond.com

More information

AIAA Brush Seal Performance Evaluation. P. F. Crudgington Cross Manufacturing Co. Ltd. Devizes, ENGLAND

AIAA Brush Seal Performance Evaluation. P. F. Crudgington Cross Manufacturing Co. Ltd. Devizes, ENGLAND AIAA 98-3172 Brush Seal Performance Evaluation P. F. Crudgington Cross Manufacturing Co. Ltd. Devizes, ENGLAND BRUSH SEAL PERFORMANCE EVALUATION AIAA-98-3172 P. F. Crudgington Cross Manufacturing Co. Ltd

More information

Membrane modules for nitrogen and oxygen generator systems. Technology Overview ENGINEERING YOUR SUCCESS.

Membrane modules for nitrogen and oxygen generator systems. Technology Overview ENGINEERING YOUR SUCCESS. Membrane modules for nitrogen and oxygen generator systems Technology Overview ENGINEERING YOUR SUCCESS. Parker modules the heart of OEM tailor-made nitrogen generators OEM (Original Equipment Manufacturer)

More information

Akasison Flow phenomena of a siphonic roof outlet

Akasison Flow phenomena of a siphonic roof outlet Akasison Flow phenomena of a siphonic roof outlet Ir. Marc Buitenhuis MTD Hydraulic research engineer Akatherm BV, Panningen, The Netherlands 06-01-2011 Abstract So far the investigations on siphonic roof

More information

Discontinued. Powers Controls. Technical Instructions Document No P25 RV Rev. 1, May, RV 201 Pressure Reducing Valves.

Discontinued. Powers Controls. Technical Instructions Document No P25 RV Rev. 1, May, RV 201 Pressure Reducing Valves. Powers Controls RV 201 Pressure Reducing Valves Description Features Product Numbers Dual Pressure PRV Technical Instructions Document No. 155-049P25 RV 201-1 Single Pressure PRV The RV 201 Pressure Reducing

More information

Exercise 5-2. Bubblers EXERCISE OBJECTIVE DISCUSSION OUTLINE. Bubblers DISCUSSION. Learn to measure the level in a vessel using a bubbler.

Exercise 5-2. Bubblers EXERCISE OBJECTIVE DISCUSSION OUTLINE. Bubblers DISCUSSION. Learn to measure the level in a vessel using a bubbler. Exercise 5-2 Bubblers EXERCISE OBJECTIVE Learn to measure the level in a vessel using a bubbler. DISCUSSION OUTLINE The Discussion of this exercise covers the following points: Bubblers How to measure

More information

CRP INSTALLATION, OPERATING AND MAINTENANCE INFORMATION FOR INLINE SAMPLING VALVES

CRP INSTALLATION, OPERATING AND MAINTENANCE INFORMATION FOR INLINE SAMPLING VALVES CRP INSTALLATION, OPERATING AND MAINTENANCE INFORMATION FOR INLINE SAMPLING VALVES Sampling Valves Installation Commissioning and Operating Instructions SD IL 300 & SD IL 400 Inline Sampling Valve This

More information

Pumping Systems for Landscaping Pumps, Controls and Accessories. Mark Snyder, PE

Pumping Systems for Landscaping Pumps, Controls and Accessories. Mark Snyder, PE October 21, 2010 Pumping Systems for Landscaping Pumps, Controls and Accessories Mark Snyder, PE Pump Station Design Purpose of Pump Stations Pump stations are designed to boost water pressure from a lower

More information

Scirocco II. the flexible airslide. Scirocco II, the flexible airslide Pneumatic conveying by fluidization

Scirocco II. the flexible airslide. Scirocco II, the flexible airslide Pneumatic conveying by fluidization Scirocco II the flexible airslide Scirocco II, the flexible airslide Pneumatic conveying by fluidization www.trelleborg.com/fluidhandling TRELLEBORG FLUID HANDLING SOLUTIONS TRELLEBORG GROUP LEADER IN

More information

TECHNICAL DATA MAINTENANCE AIR COMPRESSOR MODEL G-1

TECHNICAL DATA MAINTENANCE AIR COMPRESSOR MODEL G-1 Dry 131h 1. DESCRIPTION The Viking Model G-1 Maintenance Air Compressor is an electric motor-driven, aircooled, single-stage, oil-less compressor. The unit is equipped with a check valve and provides a

More information

2010 IAOM Technical Conference Pneumatic Systems in the Mill

2010 IAOM Technical Conference Pneumatic Systems in the Mill 2010 IAOM Technical Conference Pneumatic Systems in the Mill Peter Lloyd US Wheat Associates Inc, Casablanca 1 A pastime nobody enjoys! 2 In summary Pneumatic conveying is quite simple pneumatic systems

More information

CHAPTER 3 AUTOMOTIVE AIR COMPRESSOR

CHAPTER 3 AUTOMOTIVE AIR COMPRESSOR 30 CHAPTER 3 AUTOMOTIVE AIR COMPRESSOR 3.1 INTRODUCTION A machine providing air at a high pressure is called as an air compressor. Air compressors have been used in industry for well over 100 years because

More information

Tube rupture in a natural gas heater

Tube rupture in a natural gas heater Tube rupture in a natural gas heater Dynamic simulation supports the use of a pressure safety valve over a rupture disk in the event of a tube rupture HARRY Z HA and PATRICK STANG Fluor Canada Ltd A fast

More information

flammable dust II 1D or II 1/2D or II 1/3D Level measuring devices and silo equipment for the potentially explosive atmospheres

flammable dust II 1D or II 1/2D or II 1/3D Level measuring devices and silo equipment for the potentially explosive atmospheres provides: Level measuring devices and silo equipment for the potentially explosive atmospheres flammable dust with ATEX certification: II 1D or II 1/2D or II 1/3D Level measuring devices and silo equipment

More information

The Compact, Portable, Efficient and Economical Solution to boost Shop Compressed Air Pressure by 2 or 3 times

The Compact, Portable, Efficient and Economical Solution to boost Shop Compressed Air Pressure by 2 or 3 times Tseries Series AB AB Air Air Boosters Boosters The Compact, Portable, Efficient and Economical Solution to boost Shop Compressed Air Pressure by 2 or 3 times.01/1 MANIFOLD MOUNTED VALVES FOR EASY SERVICING

More information

776 Cryogenic Safety Valve

776 Cryogenic Safety Valve 776 Cryogenic Safety Valve INTRODUCTION 776 Cryogenic Safety Valve The effects of exceeding safe pressure levels in an unprotected pressure vessel or system, can have catastrophic effects on both plant

More information

Ratio Regulator Zero Governor. FRG/6 Series

Ratio Regulator Zero Governor. FRG/6 Series Ratio Regulator Zero Governor FRG/6 Series CSA Certified ANSI Z21.18 / CSA 6.3 CSA Requirement # 5.01 Zero Governor and Gas/Air Regulator File # 157406 US and Canadian Models FRG 705/6 FRG 707/6 FRG 710/6

More information

WORKING DOCUMENT ON. Possible requirements for compressors for standard air applications DRAFT ECODESIGN REGULATION

WORKING DOCUMENT ON. Possible requirements for compressors for standard air applications DRAFT ECODESIGN REGULATION WORKING DOCUMENT ON Possible requirements for compressors for standard air applications DRAFT ECODESIGN REGULATION COMMISSION WORKING DOCUMENT implementing Directive 2009/125/EC of the European Parliament

More information

FACHGESPRÄCH 3 NPSH NPSH3. Let us call it: CAVITATION A LOOK UNDER THE HOOD

FACHGESPRÄCH 3 NPSH NPSH3. Let us call it: CAVITATION A LOOK UNDER THE HOOD FACHGESPRÄCH 3 NPSH Let us call it: NPSH3 CAVITATION A LOOK UNDER THE HOOD OUR APPROACH TO LEARNING AT THIS PRESTIGIOUS W.T.F. FORMULAS DEFINITIONS B.U.T.Ts Broadly Useful Technical Tips T.I.T.S T.I.T.S

More information

English. Introduction. Safety Instructions. All Products. Inspection and Maintenance Schedules. Parts Ordering. Specifications WARNING WARNING

English. Introduction. Safety Instructions. All Products. Inspection and Maintenance Schedules. Parts Ordering. Specifications WARNING WARNING Contents All Products... Gb-1 Control Valves... Gb-2 Control Valve Actuators... Gb-3 Regulators... Gb-3 Relief Valves... Gb-4 Instruments, Switches, and Accessories... Gb-4 Products Covered by Battery

More information

Automatically or individually calculated.

Automatically or individually calculated. GASCalc 5.0 GASCalc 5.0 is a Windows based suite of calculation tools for the natural gas professional. Routines are provided for calculating numerous parameters associated with the design and operation

More information

FLUID POWER FLUID POWER EQUIPMENT TUTORIAL ACCUMULATORS. This work covers part of outcome 2 of the Edexcel standard module:

FLUID POWER FLUID POWER EQUIPMENT TUTORIAL ACCUMULATORS. This work covers part of outcome 2 of the Edexcel standard module: FLUID POWER FLUID POWER EQUIPMENT TUTORIAL ACCUMULATORS This work covers part of outcome 2 of the Edexcel standard module: UNIT 21746P APPLIED PNEUMATICS AND HYDRAULICS The material needed for outcome

More information

TROUBLESHOOTING GUIDELINES

TROUBLESHOOTING GUIDELINES TROUBLESHOOTING GUIDELINES PROBLEM: Performance 1. The most common problem in this area comes from inadequate flow to the LAKOS Separator(s). All LAKOS Separators operate within a prescribed flow range

More information

Introduction to Pumps

Introduction to Pumps Introduction to Pumps 1 Introduction to Pumps 1.0 INTRODUCTION There are many different types of pump now available for use in pumped fluid systems. A knowledge of these pump types and their performance

More information

Eaton Filtration, LLC

Eaton Filtration, LLC Eaton Filtration, LLC 900 Fairmount Avenue, Elizabeth, NJ 07207 Phone: 908-787-1000 Fax: 908-351-7893 E-Mail: filtration@eaton.com Web: www.filtration.eaton.com Installation, Operation & Service Manual

More information

Mounting and Operating Instructions EB 3007 EN. Self-operated Pressure Regulators. Differential Pressure Regulators (opening) Type Type 42-25

Mounting and Operating Instructions EB 3007 EN. Self-operated Pressure Regulators. Differential Pressure Regulators (opening) Type Type 42-25 Self-operated Pressure Regulators Differential Pressure Regulators (opening) Type 42-20 Type 42-25 Type 42-20 Differential Pressure Regulator Type 42-25 Differential Pressure Regulator Mounting and Operating

More information

Fundamentals of NGL Sampling Systems. By Dominic Giametta & Jim Klentzman

Fundamentals of NGL Sampling Systems. By Dominic Giametta & Jim Klentzman Fundamentals of NGL Sampling Systems By Dominic Giametta & Jim Klentzman The purpose of this paper is to discuss in depth the systems we use as a standard to sample natural gas liquids, or NGL s. Before

More information

Meteorology & Air Pollution. Dr. Wesam Al Madhoun

Meteorology & Air Pollution. Dr. Wesam Al Madhoun Meteorology & Air Pollution Dr. Wesam Al Madhoun Dispersion = Advection (Transport) + Dilution (Diffusion) Source Transport Receptor Re-entrainment Fick s law of diffusion J= - D * D C/Dx Where, J= Mass

More information

Quick Reference Technical Data

Quick Reference Technical Data Bulletin 127C 2 Quick Reference Technical Data For over 100 years, The Spencer Turbine Company has specialized in innovative solutions to air and gas handling problems. Spencer's product line includes

More information

Mechanical Seal Piping Plans

Mechanical Seal Piping Plans Mechanical Seal Piping Plans Single Seals plans 01, 02, 03, 11, 13, 14, 21, 23, 31, 32, 41 Dual Seals plans 52, 53A, 53B, 53C, 54, 55 Quench Seals plans 62, 65A, 65B, 66A, 66B Gas Seals plans 72, 74, 75,

More information

Advantages of Carrier Gas Leak Detection using Novel Helium or Hydrogen Leak Detectors with Specific Sensor Types

Advantages of Carrier Gas Leak Detection using Novel Helium or Hydrogen Leak Detectors with Specific Sensor Types 19 th World Conference on Non-Destructive Testing 2016 Advantages of Carrier Gas Leak Detection using Novel Helium or Hydrogen Leak Detectors with Specific Sensor Types Klaus HERRMANN 1, Daniel WETZIG

More information

FLOW CONSIDERATIONS IN INDUSTRIAL SILENCER DESIGN

FLOW CONSIDERATIONS IN INDUSTRIAL SILENCER DESIGN FLOW CONSIDERATIONS IN INDUSTRIAL SILENCER DESIGN George Feng, Kinetics Noise Control, Inc., 3570 Nashua Drive, Mississauga, Ontario Vadim Akishin, Kinetics Noise Control, Inc., 3570 Nashua Drive, Mississauga,

More information

photo: deltaport berth 2 project

photo: deltaport berth 2 project photo: deltaport berth 2 project GROUND I MPROVEMENT BOLEO MARINE TERMINAL Vancouver Pile Driving Ltd. (Vanpile) was involved in the development of the The final Stone Column spacing that was accepted

More information

Latest Developments in High Efficency Clinker Cooling. Stephan Oehme Claudius Peters Director Sales and Technology

Latest Developments in High Efficency Clinker Cooling. Stephan Oehme Claudius Peters Director Sales and Technology Latest Developments in High Efficency Clinker Cooling Stephan Oehme Claudius Peters Director Sales and Technology 2 Why a New Clinker Cooler? Fuel for my kiln is getting more and more expensive, I need

More information

DEFINITIONS. Aerofoil

DEFINITIONS. Aerofoil Aerofoil DEFINITIONS An aerofoil is a device designed to produce more lift (or thrust) than drag when air flows over it. Angle of Attack This is the angle between the chord line of the aerofoil and the

More information

ASSIGNMENT 2 CHE 3473

ASSIGNMENT 2 CHE 3473 DUE: May 23 ASSIGNMENT 2 CHE 3473 #Problem 1: 3.3 #Problem 2: 3.4 #Problem 3: 3.5 #Problem 4: 3.6 #Problem 5: 3.7 #Problem 6: 3.8 #Problem 7: 3.11 #Problem 8: 3.15 #Problem 9: 3.22 #Problem 10: 3.32 #Problem

More information

Red Valve Coarse and Fine Bubble Air Diffuser Systems

Red Valve Coarse and Fine Bubble Air Diffuser Systems Red Valve Coarse and Fine Bubble Air Diffuser Systems Red Valve: Your Partner in and Manufactu 2 Tideflex diffusers provide optimal aeration, while mixing prevents stratification. Red Valve s patented

More information

Practical Guide. By Steven T. Taylor, P.E., Member ASHRAE

Practical Guide. By Steven T. Taylor, P.E., Member ASHRAE ractical Guide The following article was published in ASHRAE Journal, March 2003. Copyright 2003 American Society of Heating, Refrigerating and Air- Conditioning Engineers, Inc. It is presented for educational

More information

ASSIGNMENT 2 CHE 3473

ASSIGNMENT 2 CHE 3473 DUE: May 21 ASSIGNMENT 2 CHE 3473 #Problem 1 Read Chapter 3. ALL OF IT. Time yourself and report the time. #Problem 2: 3.2 #Problem 3: 3.3 #Problem 4: 3.5 #Problem 5: 3.6 #Problem 6: 3.7 #Problem 7: 3.8

More information

Level MEASUREMENT 1/2016

Level MEASUREMENT 1/2016 Level MEASUREMENT 1/2016 AGENDA 2 A. Introduction B. Float method C. Displacer method D. Hydrostatic pressure method E. Capacitance method G. Ultrasonic method H. Radar method I. Laser method J. Level

More information

FABRICATED ROTARY AIRLOCK

FABRICATED ROTARY AIRLOCK FABRICATED ROTARY AIRLOCK INSTRUCTION, OPERATIONS & MAINTENANCE MANUAL CLEAN AIR MANAGEMENT COMPANY, INC. 8224 Nieman Road i Lenexa, Kansas 66214 Phone: 913-831-0740 Fax: 913-831-9271 TABLE OF CONTENTS

More information

Fundamentals of Turboexpanders Basic Theory and Design

Fundamentals of Turboexpanders Basic Theory and Design Fundamentals of Turboexpanders Basic Theory and Design Edited Date: September 16, 2015 Presented By: Mr. James Simms Simms Machinery International, Inc. 2357 A Street Santa Maria, CA 93455 U.S.A. About

More information

PNEUMATIC PRESSURE CONTROLLERS

PNEUMATIC PRESSURE CONTROLLERS PNEUMATIC PRESSURE CONTROLLERS VARIABLE VOLUME PRESSURE CONTROLLER MODELS: V-1 R AND V-2R The 3D Variable Volume Pressure Controller is available for requirements of 0-1,000 psi and 0-6,000 psi in absolute

More information

AGRI-VAC HIGH PERFORMANCE PNEUMATIC GRAIN MOVING UNITS

AGRI-VAC HIGH PERFORMANCE PNEUMATIC GRAIN MOVING UNITS AGRI-VAC HIGH PERFORMANCE PNEUMATIC GRAIN MOVING UNITS The only system you ll ever need. Gives one person total grain-handling capability! Do it all with the Walinga Agri-Vac. Fill or empty any storage

More information

756 Safety Relief Valves

756 Safety Relief Valves 756 S a fe t y R e l i e f Va l ve s INTRODUCTION 756 Safety Relief Valves The effects of exceeding safe pressure levels in an unprotected pressure vessel or system, can have catastrophic effects on both

More information

Write important assumptions used in derivation of Bernoulli s equation. Apart from an airplane wing, give an example based on Bernoulli s principle

Write important assumptions used in derivation of Bernoulli s equation. Apart from an airplane wing, give an example based on Bernoulli s principle HW#3 Sum07 #1. Answer in 4 to 5 lines in the space provided for each question: (a) A tank partially filled with water has a balloon well below the free surface and anchored to the bottom by a string. The

More information

Installation and operation Manual. Bermad Surge Anticipation Valve. Model No 435

Installation and operation Manual. Bermad Surge Anticipation Valve. Model No 435 Instruction manual Bermad surge anticipation manual Model No 435 Installation and operation Manual Bermad Surge Anticipation Valve Model No 435 Bermad Water Technologies Rev 0 5/05/2015 7 Inglewood Drive,

More information

PERFORMANCE AND CHARACTERISTICS OF COMPRESSOR/EXPANDER COMBINATION FOR CO 2 CYCLE ABSTRACT

PERFORMANCE AND CHARACTERISTICS OF COMPRESSOR/EXPANDER COMBINATION FOR CO 2 CYCLE ABSTRACT PERFORMANCE AND CHARACTERISTICS OF COMPRESSOR/EXPANDER COMBINATION FOR CO 2 CYCLE M. FUKUTA, T. YANAGISAWA, S. NAKAYA (b), and Y. OGI Shizuoka University, 3-5-1 Johoku Hamamatsu, 432-8561, Japan Fax +81-53-478-158,

More information

Bicycles 2. Bicycles 1. Bicycles 4. Bicycles 3. Bicycles 5. Bicycles 6

Bicycles 2. Bicycles 1. Bicycles 4. Bicycles 3. Bicycles 5. Bicycles 6 Bicycles 1 Bicycles 2 Reading Question 4.1a How would raising the height of a sport utility vehicle affect its turning stability? A. Make it less likely to tip over B. Make it more likely to tip over C.

More information

Pressure reducing valves Index

Pressure reducing valves Index Index General information page Introduction 506 General introduction 507 for a steam plant 509 Product information BSP thread page Brass 510 ; BSP female thread 511 ; BSP male thread 513 Stainless steel

More information

AMT-Ex Dewpoint Transmitter

AMT-Ex Dewpoint Transmitter AMT-Ex Dewpoint Transmitter Instruction Manual Alpha Moisture Systems Alpha House 96 City Road Bradford BD8 8ES England Tel: +44 1274 733100 Fax: +44 1274 733200 email: mail@amsytems.co.uk web: www.amsystems.co.uk

More information

UNIVERSITY OF MAURITIUS FACULTY OF ENGINEERING

UNIVERSITY OF MAURITIUS FACULTY OF ENGINEERING Let s Talk PNEUMATICS FTOSP 1261 Lectures 1& 2 Pneumatics is the study of air and gases and the relationship between volume, pressure and temperature of the air or gases. Initially used for carrying out

More information

Control of Nuclear Gloveboxes and Enclosures Using the No- Moving-Part Vortex Amplifier (VXA)

Control of Nuclear Gloveboxes and Enclosures Using the No- Moving-Part Vortex Amplifier (VXA) Control of Nuclear Gloveboxes and Enclosures Using the No- Moving-Part Vortex Amplifier (VXA) ABSTRACT M.J. Crossley AEA Technology ES. Inc. 1100 Jadwin Ave, Richland, WA 99352, USA This paper describes

More information

A/C SYSTEM GENERAL DIAGNOSTIC PROCEDURES

A/C SYSTEM GENERAL DIAGNOSTIC PROCEDURES A/C SYSTEM GENERAL DIAGNOSTIC PROCEDURES 1990 Nissan 240SX 1983-90 AIR CONDITIONING & HEAT General Servicing Diagnostic Procedures All Import Makes & Models Diagnosis is an important first step in A/C

More information

Air Pycnometer. Operating Manual. Umwelt-Geräte-Technik GmbH

Air Pycnometer. Operating Manual. Umwelt-Geräte-Technik GmbH Operating Manual Air Pycnometer Version: 24/05/17 Umwelt-Geräte-Technik GmbH Eberswalder Str. 58 D-15374 Müncheberg phone: +49 (0) 33 43 2-89 575 fax: +49 (0) 33 43 2-89 573 e-mail: info@ugt-online.de

More information

Design a grit chamber for population with water consumption of 135 LPCD.

Design a grit chamber for population with water consumption of 135 LPCD. 1 Example:1 Design a grit chamber for population 50000 with water consumption of 135 LPCD. Solution Average quantity of sewage, considering sewage generation 80% of water supply, is = 135 x 50000 x 0.8

More information

H16 Losses in Piping Systems

H16 Losses in Piping Systems H16 Losses in Piping Systems The equipment described in this manual is manufactured and distributed by TECQUIPMENT LIMITED Suppliers of technological laboratory equipment designed for teaching. BONSALL

More information

. In an elevator accelerating upward (A) both the elevator accelerating upward (B) the first is equations are valid

. In an elevator accelerating upward (A) both the elevator accelerating upward (B) the first is equations are valid IIT JEE Achiever 2014 Ist Year Physics-2: Worksheet-1 Date: 2014-06-26 Hydrostatics 1. A liquid can easily change its shape but a solid cannot because (A) the density of a liquid is smaller than that of

More information

P 2 KKK Bernoulli s Law. Article Code: Area: Fluid Mechanics Keywords: Background Knowledge:

P 2 KKK Bernoulli s Law. Article Code: Area: Fluid Mechanics Keywords: Background Knowledge: Article Code: Area: Fluid Mechanics Keywords: Background Knowledge: Bernoulli s Law When a fluid flows in a pipe, the pressure, P, and the velocity, v, of the fluid in two points, 1 and, of the pipe are

More information

CompAir provide high quality and reliable Nitrogen solutions

CompAir provide high quality and reliable Nitrogen solutions Nitrogen Compressor Guide CompAir provide high quality and reliable Nitrogen solutions Technical Data Model Typical Inlet Pressure Max Pressure Typical FAD Drive Bar PSI Bar PSI m³/hr CFM kw HP 5209 B

More information

Leak Checking Large Vacuum Chambers

Leak Checking Large Vacuum Chambers Leak Checking Large Vacuum Chambers Technical Overview Vacuum Technologies Introduction Understanding the pump-down characteristics of a large vacuum vessel is critical for determining whether the vacuum

More information

Ir HN Lam BSc(Eng), MSc(Eng), CEng, MIMechE, MCIBSE, MASHRAE, MASME, MHKIE. Test Report on Non-Return Valve for Water Closets

Ir HN Lam BSc(Eng), MSc(Eng), CEng, MIMechE, MCIBSE, MASHRAE, MASME, MHKIE. Test Report on Non-Return Valve for Water Closets c/o Department of Mechanical Engineering University of Hong Kong Pokfulam Road Hong Kong Phone: 28592640 E-mail: hn.lam.hku@hku.hk Ir HN Lam BSc(Eng), MSc(Eng), CEng, MIMechE, MCIBSE, MASHRAE, MASME, MHKIE

More information

Development of a High Pressure, Oil Free, Rolling Piston Compressor

Development of a High Pressure, Oil Free, Rolling Piston Compressor Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 1994 Development of a High Pressure, Oil Free, Rolling Piston Compressor S. J. Delmotte

More information

SRI Jigger Tubes System

SRI Jigger Tubes System SRI Jigger Tubes System Design, Installation and Commissioning Manual (Abbreviated Version) INDEX This manual details how the SRI Jigger Tubes System can be tailored to suit the needs of a variety of vacuum

More information