Determination of the filtration performance of air filter MV-F8-03 according to EN 779:2002

Transcription

1 Determination of the filtration performance of air filter MV-F8-03 accordin to Laboratory to perform measurements accordin to. Test Data Performed by an Independent Laboratory for This information is the property of

2 Task Sample Determination of the filtration performance of air filter MV-F8-03 accordin to Two air filters were delivered by the customer. One air filter, which is detailed in Appendix 1 Device tested, was arbitrarily chosen for complete filtration performance tests. The second identical filter was chosen for the dischare tests. The samples were received The measurements were made Test method The tests were made accordin to /1/. The test aerosol was DEHS and the bipolar aerosol charer (neutralizer) was a radioactive Am-241 source. The particle counter was of type PMS LAS-X. The filter material discharin tests were made on a complete filter. Discharin was made by loadin the air filter with diesel enine exhaust as. The air flow rate was measured with a calibrated orifice plate with corner pressure tappins. The orifice plate has been calibrated aainst an orifice plate built accordin to ISO 5 167:1980 /2/. The instruments used in the measurements are presented in Appendix 6. FINAS Finnish Accreditation Service has accredited our laboratory (T001) to perform measurements accordin to EN 779:2002. Test Data Performed by an Independent Laboratory for This information is the property of

3 Results A summary of the test results is presented in Appendix 1. A summary of the initial and averae efficiencies is presented in Appendix 2. The averae efficiencies have been interpolated/ extrapolated to the final pressure drops 250, 350 and 450. Efficiencies after different dust loadin phases are presented in Appendix 3. Results of the filter material discharin tests are presented in Appendix 4. Measurement data relatin to pressure drop and dust loadin are presented in Appendix 5. The results are only valid for the tested filter samples. References /1/. rticulate air filters for eneral ventilation - Determination of the filtration performance. /2/ISO 5167:1980. Measurement of fluid flow by means of orifice plates, nozzles and venturi tubes in circular ducts runnin full. Espoo, APPENDICES 6 DISTRIBUTION Customer Oriinal (2 pcs) Oriinal Test Data Performed by an Independent Laboratory for This information is the property of

4 AIR FILTER TEST RESULTS GENERAL Test no.: Date of test: Supervisor: RHo Test requested by: Device delivered by: DEVICE TESTED Model Manufacturer Construction MV-F8-03 Device receivin date Compact filter Type of media Net effective filterin area Filter dimensions (width x heith x depth) Micro lass fiber 17.4 m2 (estimated) 592mm x 592mm x 294mm TEST DATA Test air flow rate Test air temperature Test air relative humidity Test aerosol Loadin dust m 3 /s C 23-26% DEHS ASHRAE RESULTS Initial pressure drop Initial arrestance Initial efficiency (0,4 µm) Dust holdin capacity 126 >99% 68% 246 / 354 / 441 Final pressure drop Averae arrestance Averae efficiency (0,4µm) Filter class (450 ) 250/350/450 >99/>99/>99% 89±1/ 92±1/ 93±1% F8(1.181m 3 /s) Untreated / dischared efficiency of filter material (0.4µm) 75 / 75% Remarks: NOTE: The performance results cannot by themselves be quantitatively applied to predict filter performance in service. The results relate only to the tested item. Test Data Performed by an Independent Laboratory for This information is the property of

5 Initial and Averae Efficiency at Differential Final Pressure Drops Test No Air Flow Rate: 1.181m³/s Initial and Averae Efficiency at Differential Final Pressure Drops Test No.: Air Flow Rate: 1.181m³/s rticle size µm Initial efficiency, % Pressure drop Averae efficiency % Final pressure drop Interval Mean ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± 0.0 Dust Holdin Capacity Filter Class F8 Test Data Performed by an Independent Laboratory for This information is the property of

6 Efficiency After Differential Dust Loadin Phases Test No.: Air Flow Rate: 1.181m³/s Efficiency and Uncertainty After Different Dust Loadin Phases Test No.: Air Flow Rate: 1.181m³/s rticle size µm Interval Mean Efficiency % Pressure drop, / Dust fed, ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± 0.0 The uncertainty of the measured efficiencies is reported on a 95% confidence level. Test Data Performed by an Independent Laboratory for This information is the property of

7 Efficiency of Untreated and Dischared Filter Material Test No.: Dischare Treatment Method: Diesel Enine Exhaust Gas Size of Material Sample: 17.4 m² (estimated) Efficiency and Pressure Drop of Untreated and Dischared Filter Material Test No.: Dischare Treatment Method: Diesel Enine Exhaust Gas Size of Material Sample: 17.4 m² (estimated) rticle size µm Efficiency, % Interval Mean Untreated filter Dischared filter Air flow rate / Pressure drop Air flow rate / Pressure drop m 3 /s m3/s m 3 /s m3/s ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± 0.0 Mass of filter: The uncertainty of the measured efficiencies is reported on a 95% confidence level. Test Data Performed by an Independent Laboratory for This information is the property of

8 Air Flow Rate and Pressure Drop After Differential Dust Loadin Phases Test No Date Dust fed Calibrated orifice plate¹ Filter M tot t f C Psf k ΔPf q m k/s t C Ψ % k P k/m³ q v m³/s Clean filter Δp Δp 1.20 Clean filter pressure drop is proportional to (q V ) n, where n = Dust loadin phase * * * * * * * * * * * Clean filter before and after dischare treatment * measured before next dust increment 2* measure after dust increment Symbols and Units m tot Cumulative Mass of Dust Fed to Filter, t f Temperature at Air Flow Meter, C P a Absolute Air Pressure Upstream of Filter, k P Air Density Upstream of Filter, k/m 3 P s Air Flow Meter Static Pressure, k Ψ Relative Humidity Upstream of Filter, % q m Mass Flow Rate, k/s Δp Measured Filter Pressure Drop, q v Air Flow Rate at Filter, m³/s Δp f Air Flow Meter Differential Pressure, t 1) Orifice Plate Dimensions Temperature Upstream of Filter, C Duct Dimensions: Orifice Diameter: Δp mm x 610 mm 216 mm Filter Pressure Drop at Air Density 1.20 k/m³, Test Data Performed by an Independent Laboratory for This information is the property of

9 Pressure Drop and Arrestance After Different Dust Loadin Phases Test No Date Δp 1 Δm m tot Δp 2 m 1 m 2 Δm ff m d A % Mass of Tested Device Initial Mass of Tested Device: Final Mass of Tested Device: Symbols and Units A Arrestance, % m d Dust in Duct After Device, m tot Cumulative Mass of Dust Fed to Filter, m 1 Mass Final Before After Dust Increment, m 2 Mass Final Filter After Dust Increment, Δm Dust Increment, Δm ff Mass Gain of Final Filter, Δp 1 Pressure Drop Before Dust Increment (Air Density 1.20 k/m³), Δp 2 Pressure Drop After Dust Increment (Air Density 1.20 k/m³), Loadin Dust Type: ASHRAE Test Dust Manufactured by: AFTL Inc. Batch No. - Test Data Performed by an Independent Laboratory for This information is the property of

10 Instrument Type code Serial number Calibration date Used Micromanometer Alnor MP6KS X AInorMP6KS X Barometer Lr.nro X Hyrometer Rotronic MS 100TST / X Temperature Nokeval X Balance Mettler PC A X rticle counter PMS LAS-X X Calibration check with µm and µm latex particles Dust feeder ASHRAE X Orifice plate / 610 x X Ø272/610x Ø90/610x Test Data Performed by an Independent Laboratory for This information is the property of