Mott Manufacturing Limited

Transcription

1 Mott Manufacturing Limited 452 Hardy Road, PO Box 1120, Brantford, Ontario, Canada, N3T 5T3. Telephone: Fax: Web Site: Fume Hood Performance Test Test Date: January 11, 2005 Project: 48 Observation Bench Hood Test Results Applicable to the following models: 72CV002 Test Conducted By: A. Sinnamon Report Prepared By: A Sinnamon

2 Fume Hood Test Report Test Date(s) 11 January 2005 Report date: 11 January 2005 Manufacturer: Mott Manufacturing Model: Prototype Serial number: Sash type: Vertical Exterior width: 48 inches Exterior height: inches Exterior depth: 66 inches Tracer gas release rate: 4 l/min Test conditions: 100 lfpm with sash open vertically to 18 inch. Introduction: Test Results: The above fume hood was tested the ASHRAE protocol. Tests included: smoke flow visualization, face velocity measurement and tracer gas. The hood was installed in Mott Manufacturing s factory test lab. This double sided hood was equipped with sashes on both sides. All testing was performed with both sashes in the 18 open position. All instruments are calibrated annually or verified on the day of use. Detailed information on the test equipment is available on request. Results are summarized below for all tests. For detailed results see attached charts and graphs. Large Volume Smoke Flow Visualization: A smoke "bomb" is used to produce a large volume smoke challenge within the hood. Large volume smoke visualization is rated qualitatively and is assigned a pass/fail result. ASHRAE 110 defines a fail as "A release of smoke from the hood that is steady and visible" Sash Position Face Velocity Rating Notes 18 inch 100 Pass Some reverse flow noted at sides did not escape past hood face Local Smoke Visualization: A cotton swab is dipped in Titanium Tetrachloride and is used to produce a local source of smoke for detailed visualization. Local smoke visualization is rated qualitatively and is assigned a pass/fail result. ASHRAE 110 defines a fail as "A release of smoke from the hood that is steady and visible" Sash Position Face Velocity Rating Notes 18 inch 100 Pass Some reverse flow noted at sides did not escape past hood face Face Velocity Profile: A calibrated anemometer is used to measure velocities in one square foot areas across the open face of the fume hood. Results are tabulated by computer and charted. Average face velocity, as well as percentage positive and negative variation are noted here. Sash Position Target Face Velocity Actual Face Velocity Variation 18 inch / -7.5 % Fume Hood Test Report - Vista Hood 11 January 2004 Page 1

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4 Mott Manufacturing Ltd Face Velocity Test Project: Evergreen State Test No: Test Performed By: A. Sinnamon Date: 11 January 2005 Fume Hood Model No: Fume Hood Description: Fume Hood Serial no: Vista Hood Double Sided Workstation Prototype Target Face Velocity (ft/min): 100 Connection: Phoenix Valve #3 Phoenix setting: 1100 Fan RPM: n/a Damper Setting - % Open: n/a Var Speed Cont: n/a Sash Height (in): Face Width (in): Interior Depth (in): Static 0.5 Sash Cells Horizontal Cells 4 Vertical Cells 2 Sash Cell Area : 0.7 Sash Cell Height (in): Sash Cell Width (in): (sq ft) Sash Cell Centre Line Coordinates referenced from Lower Left Corner Actual Face Velocity Measurements (ft/min) CELL A B C D E F G H I K location N/A N/A N/A N/A N/A N/A N/A 4 N/A 5 N/A 6 N/A 7 N/A 8 N/A Measured Variance from Average CELL A B C D E F G H I K location N/A N/A N/A N/A N/A N/A % -4.4% -2.7% 15.8% % -2.8% -7.5% 4.1% 3 N/A 4 N/A 5 N/A 6 N/A 7 N/A 8 N/A Average Face Velocity (ft/min): 94 Variance Actual Overall Face Velocity to Target Face Velocity: -5.8% Results STP ft/min % Variance Overall Average Face Velocity 94 Maximum Face Velocity % Minimum Face Velocity % Average Exhaust Volume (CFM): 518

5 ASHRAE Gas Tracer Test Mannequin Centre AVERAGE EXCLUDING CHALLANGE PPM 00:00:16 00:01:17 00:01:47 00:02:18 00:03:04 00:03:19 00:03:49 00:04:05 00:04:20 00:05:21 00:05:51 Final final peak due to verification of instruments.. Only peaks before final peaks would Results Adjusted for 0 PPB background ASHRAE Gas Tracer Test Mannequin Left AVERAGE EXCLUDING CHALLANGE PPM 00:00:16 00:01:16 00:01:47 final peak due to verification of instruments. Only peaks before final peak would 00:02:17 00:03:18 00:03:49 00:04:04 00:04:19 00:05:20 00:05:51 00:06:07 Results Adjusted for -1 PPB background

6 ASHRAE Gas Tracer Test Mannequin Right AVERAGE EXCLUDING CHALLANGE: PPM 00:00:15 00:01:17 00:01:47 00:02:18 00:03:19 00:03:49 00:04:05 00:04:20 00:05:21 00:05:51 00:06:06 final peak due to verification of instruments. Only peaks before final peak would Results Adjusted for -1 PPB background ASHRAE Gas Tracer Test Sash Mannequin Movement Left Effect PEAK EXCLUDING CHALLANGE: PPM 00:00:16 00:00:30 00:01:31 00:02:32 00:01:16 00:03:33 00:01:47 00:04:04 final Final peak due due to to verification of of instruments.. Only peaks before final peaks would would indicate a loss of of containment. 00:04:34 00:02:17 00:05:35 00:06:06 00:06:36 00:07:07 00:03:18 00:07:37 00:08:08 00:03:49 00:08:38 00:04:04 00:09:08 00:04:19 00:09:39 00:10:09 00:10:40 00:11:11 00:11:41 00:05:20 00:12:12 00:12:42 00:13:13 00:05:51 00:06:07 Results Adjusted for -1-2 PPB background

7 ASHRAE Gas Tracer Test Perimeter Scan PEAK EXCLUDING CHALLANGE : PPM 00:00:10 00:00:20 00:00:30 00:00:40 00:00:51 00:01:11 00:01:21 00:01:31 00:01:41 00:01:52 00:02:12 00:02:22 00:02:32 00:02:42 00:02:53 final peak due to verification of instruments. Only peaks before final peak would Results Adjusted for 0 PPB background