SowBridge Proper Management and Maintenance of Cool Cells

Transcription

1 Breeding Herd Educatin Series Timely, relevant & cnvenient learning Thank yu fr participating in SwBridge T start this presentatin, advance ne slide by pressing enter r the dwn r right arrw key. SwBridge Prper Management and Maintenance f Cl Cells Steven Matthis Sampsn Cmmunity Cllege ext: 7006 smatthis@sampsncc.edu Evaprative Cling One Of The Mst Neglected / Abused / Frgtten Pieces f Equipmentnthe the Farm 2 3 Maintenance Objectives Knw What Yu Are Buying Fr Cling Flushing and Bleed ff Cleaning Agents Building Requirements Pump and Cl Cell Sizing Evaprative Cling Take Hme Message Knw What Yu Are Buying Type f Material ( Paper / Resin) Manufacturing Prcess (Cutting the Material) Mt il) Design Angle (15 X 45 r 30 X 30) Edge Cating (Cated r Painted) 1

2 Pad Quality Pr Cnstructin Methds Seven Years Old Six Years Old Smth edges are essential fr prper water flw The University f Gergia Cperative Extensin Service degrees/15 degrees y The University f Gergia Cperative Extensin Service 8 Weak Glue Jints The University f Gergia Cperative Extensin Service 10 2

3 Pad Types Edge Cating Increases pad life typically n the rder f 2 3 years with gd quality edge cating Reduces Tattering fr given pad age Pad Types 30 x 30 Flute Angle 15 x 45 Flute Angle Munters, Aertech Divisin 12 Munters, Aertech Divisin 13 Pad Types Add Water 30 x 30 Flute Angle 15 x 45 Flute Angle Pad Types Add Water and Airflw 30 x 30 Flute Angle 15 x 45 Flute Angle Airflw Airflw Munters, Aertech Divisin 14 Munters, Aertech Divisin 15 New Prduct Frm Big Dutchman All Plastic Cnstructin Similar t the 6 inch 45 /15 degree pad in cling ptential Flw Over The Pad Distributin Of Water Over The Pad Checking The Flw (Hand Methd) 3

4 Flw Over Pad Recmmended Flw 0.75 GPM / linear ft f system Example 70 ft. lng system 70 ft. x 0.75 GPM/ft.= 52.5 GPM We need 52.5 GPM delivered ver the pad in a 70 ft. lng system at all times. Flw Over Pad 0.75 GPM/ft. is abut 10 times the water that evaprates Why s much water? Prevents streaking ensuring pad is fully wet Flushes dust, feed, grass clippings, and debris ut t make the pad last lnger Decreases fans wrk lad Maintains prper static pressure Munters, Aertech Divisin 19 Flw Over Pad Lack f Flw will cause streaking which results in less efficient pad (higher huse temperatures) Flw Over Pad Als cnsider distributin alng header pipe At Pump end At Far end Munters, Aertech Divisin 20 Munters, Aertech Divisin 21 Minimum Water Clumn Height Measure the Water Height 1/8" hles 4" spacing Munters Acme 16 1/8" hles 2 3/4" spacing ClAir 11" 1/8" hles 3" spacing Cumberland 12" 1/8" hles 2" spacing Cumberland Hired Hand 8 5/32" hles 4" spacing Chretime Aertech 6" 22 The University f Gergia Cperative Extensin Service 23 4

5 Flw Over Pad The Bttm Line When yu place yur hand n the face f the pad water shuld dribble ff Nt Enugh Water Munters, Aertech Divisin 24 A Gd Flw f Water Acrss The Pad 27 Flw Over Pad Cl cells ver 60 lng shuld use a center feed distributin system Flw Over Pad Fr much lnger systems, ver lng, it is typically less expensive t use tw pumps rather than ne large pump This als prvides ther benefits Safety factr since lsing 1 f 4 pumps is much less likely t result in animal lss than lsing 1 f 2 pumps in ht weather Easier t transitin int evaprative cling mde since yu can run 2 f the 4 pumps t prvide partial cling Munters, Aertech Divisin 28 Munters, Aertech Divisin 29 5

6 Pump Placement Flushing / Bleed ff f the Cling System Pr Water Quality Equates t Pr Pads Center Pumps End Pumps Munters, Aertech Divisin 30 Bleed Off Bleed ff water cntinuusly Start with 1 galln per hur per linear ft Example: A 30 ft Cl Cell wuld need t bleed ff 30 gallns per hur. Frmula fr calculating bleedff rate 60 min. X 5 gal. = time t fill 5 gal bucket GPH needed (In Minutes) Check PH On A Regular Basis PH Shuld Be Between 6 &8 Pad Maintenance Salt build up frm lack f bleed ff ** Extreme Case ** Munters, Aertech Divisin 35 6

7 Pad Maintenance Lack f Bleed ff - Sft Pad frm High PH (PH 10.7 in this system) N Water r Air Can Pass Thrugh This Pad Munters, Aertech Divisin 36 Autmatic Bleed ff Valve 38 Ptential Hidden Prblems Due T Lack Of Bleed Off Evapratin ptential several thusand gallns per day (3,000 t 12,000 gal.) Cntaminate ptential increases 5 t 10 fld In ne mnth cntaminates culd increase 100 fld Cntaminates precipitate n the surface f the pad Maintain PH levels between 6 and 8 Algae Grwth n the pads Ptential Hidden Prblems Calcium and Magnesium are linked t Alkalinity prblems Cal and Mag settle ut and clgg Flues Cleaning Agents Check Manufacture's Recmmendatins Chlrine (Nt Recmmended) 7

8 Cleaning Agents Chlrine (Nt Recmmended by mst cl cell Manufacturers) Fllw the Manufacture s recmmendatins fr prper treatment When Calculating Disinfectant Dsages, use the fllwing Frmula. Calculating Disinfectant Dsages Dse Size (Fluid Ounces) = Desired PPM X Sump Capacity (Gallns) Percent Active Ingredient x 78 Example: Dse Size = 2 PPM x 250 galln 5.25% x 78 Dse Size = 1.22 fluid z. Maximum Recmmended Dsages Quaternary Ammnia ppm Oxidizeng Bicides 1 2 ppm Cppers Nt Recmmended Manufactures may recmmend a different amunt, use the lesser amunt Pad Maintenance D nt use Harsh Chemicals fr Algae cntrl Chlrine Backpack Sprayer Applied 45 Pad Rms / Dg Huses Building Requirements Pad Rms Tight Curtains Tunnel Curtains Need t Seal tightly s that all the incming air enters thrugh the cling pad Ceiling installed Pured r Gravel Flr Munters, Aertech Divisin 47 8

9 Ideally the tunnel windw shuld be the same size as the cling pad At a minimum the tunnel windw shuld be at least 80% f the pad height Pad Rms / Dg Huses Need t seal tightly Flap at clsure t prevent leaks Tunnel Curtains Munters, Aertech Divisin 48 Munters, Aertech Divisin 49 Flw Over Pad Pump Cl Cell Sizing Pump Sizing 70 ft. system requires 52.5 GPM ver the pad When sizing the pump we must cnsider the pressure lsses f the piping system. Flw Over Pad Lsses Include 6 8 elevatin 8 10 f pipe Strainer Elbw r Tee Typically these Lsses run arund ft ttal head pressure Flw Over Pad S lk fr a pump that delivers the required flw rate at ft. f head pressure Frm ur 70 ft system example. Pump shuld lddli deliver a minimum: i ft. f head pressure. 9

10 System Sizing 6 Pad system n each side f huse 0.05" w.c. 4' Pad 5' Pad 6' Pad 180, , , , , , , , Tank Kit End Center Tw * Runded up t Single Pump Single Pump Tw Pump 5 increment End Feed Center Feed End/Center Feed 6 Pad System (75% Efficient) Apprximate Peak water evapratin GPM fr every 20,000 CFM f Tunnel Air Based n 2.5% weather data 7/25/2014 Munters, Aertech Divisin 55 System Supply Frm ur Example Huse: Assume Huse is lcated in Alabama. Peak Evapratin Rate = 0.78 GPM / 20,000 CFM 246,400 CFM X 0.78 GPM 20, FPM = 9.6 GPM We need t ensure ur Wells (Water Supply) and Piping can supply a minimum f 9.6 GPM / huse t ensure we dn t have an issue with the systems running ut f water in extreme Ht / Dry weather System Supply Supply water requirements fr 6 pad vary depending n Climate / Weather cnditins Pad Efficiency 75% 75% Dry Bulb (F) Wet Bulb (F) RH % Tunnel CFM GPM GPM 180, , , , , , , , Pad Maintenance Highlights Evaprative Cling Take Hme Message Prper Amunt Of Water Algae Scale Run the recmmended amunt f water ver the Pads. Reduce Algae Grwth Clean Distributin Pipe Hles n a regular basis Clean Distributin Pipe Hles n a regular basis Maintain Bleed ff 1 gal / hr / linear ft f system Reduce the number f n ff cycles Check fr Air Leaks in Cl Cell Rm Change filter n a regular basis 10

11 Where t Get Mre Infrmatin Aertech A Munters Cmpany Isaac Singletary inc.cm Auburn University Jim Dnald University i f Gergia Mike Czarick Brian Bi Fairchild / University f Illinis Bess Labs