Contact person Date Reference Page Christian Mossberg PX14794B 1 (2) Energy Technology

Transcription

1 issued by an Accredited Testing Laboratory Contact person Christian Mossberg PX14794B 1 (2) Energy Technology Christian.Mossberg@sp.se 2 ISO/IEC 1725 Lindbergs Ventilation AB Västkustvägen FLENINGE Testing of Air Filter according to EN779:22 (2 appendices) An annual test according to CR55 (Certification rules for air filters) has been performed according to EN 779:22. The report of the production inspection is P Tested item Lindbergs Ventilation AB, F6 Microglas, art.nr 615M1, 592 mm x 592 mm x 5 mm, 1 pocket air filter. Lindbergs Ventilation AB, F6 Microglas, art.nr 615M1, filter medium samples from a 592 mm x 592 mm x 5 mm,1 pocket air filter (for discharging test). The items were sent to SP by Lindbergs Ventilation AB and were received by SP on June 29, 211. The items were without visible defects. Date and Place The test was carried out at SP s laboratory of Energy Technology in Borås, Sweden on February 24-27, 212. Discharging test was carried out on February 16-17, 212. Test method The test was carried out according to standard EN 779:22. Results The results are presented in appendix 1 and are valid only for the items tested. Postal address Office location Phone / Fax / Laboratories are accredited by the Swedish Board for Accreditation and SP Box 857 SE BORÅS Sweden Västeråsen Brinellgatan 4 SE BORÅS info@sp.se Conformity Assessment (SWEDAC) under the terms of Swedish legislation. This report may not be reproduced other than in full, except with the prior written approval of the issuing laboratory.

2 PX14794B 2 (2) Measurement equipment Pressure gauge Furness FC16, SP's inventory no (static P Filter) Pressure gauge Furness FC16, SP's inventory no (static P Flow) Pressure gauge Furness FC12, SP's inventory no ( P Filter) Pressure gauge Furness FC12, SP's inventory no ( P Flow) Particle counter Las-X II, SP's inventory no Auto sampler, SP's inventory no Barometer, Druck DPI 26, SP's inventory no Temperature and RH, Testo 635, SP's inventory no Weighing scale, Mettler PC16, SP's inventory no Flow meter, MFS-C-25, SP's inventory no Flow meter, MFS-C5, SP s inventory no Kr-85 Aerosol Neutralizer, TSI, SP's inventory no Uncertainty of measurement The uncertainty of the Air flow is better than ± 5 % The uncertainty of the Pressure Drop is better than ± 3 % The uncertainty of the Temperature is better than ±.5 ºC The uncertainty of the Relative Humidity is better than ± 4 % RH The uncertainty of the Atmospheric Pressure is better than ± 2 mbar The uncertainty of the Measured mass is better than ±.1 g The method error in determination of the filtration efficiency is: -9 %:.1 of penetration value [%] 9-99 %:.2 of penetration value [%] %:.5 of penetration value [%] %: 1 of penetration value [%] The uncertainty of the filtration efficiency according to EN 779:22 is presented in the appendix. Energy Technology - Combustion and Aerosol Technology Performed by Examined by Signature_1 Christian Mossberg Signature_2 Marie Rönnbäck Appendices 1.Test results according to EN779:22 2. Picture of tested item

3 Pressure drop, Pa Efficiency (.4 µm), % Arrestance, % REPORT PX14794B 1 (6) Testing organisation: SP Technical Research Institute of Sw eden Report no.: PX14794B EN 779:22 AIR FILTER RESULTS GENERAL SP Date of test: 24/2/212-27/2/212 Supervisor: CM Test requested by: Device receiving date Device delivered by: Lindbergs Ventilation AB 29/6/211 DEVICE TESTED Model: Manufacturer: Construction: F6 Microglas, Lindbergs Ventilation AB Pocket filter, 1 pockets art.nr 615M1 Type of media: Net effective filtering area: Filter dimensions (w idth x height x depth): Glass 6. m² 592 mm x 592 mm x 5 mm TEST DATA Test air flow rate: Test air temperature: Test air relative humidity: Test aerosol: Loading dust:.944 m 3 /s 27 to 31 o C 11 to 21 % DEHS ASHRAE 52/76 RESULTS Initial pressure drop: Initial arrestance: Initial efficiency (.4 m): Dust holding capacity: Untreated/ discharged efficiency 61 Pa 98 % 23 % 286 / 32 / 348 g of media (.4 m, Annex A): 29 % / 2 % Final pressure drop: Average arrestance: Average efficiency (.4 m): Filter class (45 Pa): Remarks: 25 / 35 / 45 Pa >99% / >99% / >99% 63% / 65% / 68% F6 Note: The performance results are only valid for the tested item and cannot by themselves be quantitatively applied to predict efficiency and lifetime in service Efficiency (.4 µm) as a function of dust fed at the air flow rate Arrestance as a function of dust fed at the air flow rate Dust fed, g Pressure drop as a function of the air flow rate (clean device) 2 Pressure drop as a function of dust fed at the air flow rate Air flow rate, m 3 /s

4 PX14794B 2 (6) EN779:22 - Efficiency after different dust loading phases Air filter: F6 Microglas, art.nr 615M1 SP Particle size Efficiency % Interval Mean Pressure drop, Pa and Dust fed, g 61 Pa 67 Pa 94 Pa 165 Pa 268 Pa 482 Pa µm µm g 3 g 14 g 24 g 3 g 36 g NOTE The uncertainty of the measured efficiencies is reported on a 95 % confidence level. EN779:22 - Average efficiency at different final pressure drops Air filter: Test aerosol: F6 Microglas, art.nr 615M1 SP DEHS Particle size Interval Mean Final pressure drop µm µm 25 Pa 35 Pa 45 Pa Dust holding capacity 286 g 32 g 348 g Filter class - - F6 NOTE The uncertainty of the measured efficiencies is reported on a 95 % confidence level. Average efficiency %

5 Average efficiency, % Efficiency, % REPORT PX14794B 3 (6) EN779:22 - Efficiency after different dust loading phases Air Filter: F6 Microglas, art.nr 615M1 SP Particle size, m 1) g / 61 Pa 2) 3 g / 67 Pa 3) 14 g / 94 Pa 4) 24 g / 165 Pa 5) 3 g / 268 Pa 6) 36 g / 482 Pa EN779:22 - Initial and average efficiency at different final pressure drops Air Filter: F6 Microglas, art.nr 615M1 SP Initial Particle size, µm

6 PX14794B 4 (6) EN779:22 - Air flow rate and pressure drop after different dust loading phases Air filter: F6 Microglas, art.nr 615M1 SP Date Dust fed Air flow meter Filter m tot t f p sf dp f q m t p a q v p p 1.2 g C Pa Pa kg/s C % kpa kg/m 3 m 3 /s Pa Pa Clean filter 24/2/ /2/ /2/ /2/ /2/ Clean filter pressure drop is proportional to (q v ) n, w here n = 1.34 Dust loading phase 24/2/ /2/ /2/ /2/ /2/ /2/ /2/ /2/ /2/ /2/ = after dust increment 1 = before next dust increment Symbols and units dp f air flow meter differential pressure, Pa q m mass flow rate, kg/s m tot total mass of dust fed to filter, g q v air flow rate filter, m 3 /s p measured filter pressure drop, Pa t f temperature at air flow meter, C p 1.2 filter pressure drop at air density 1.2 kg/m 3, Pa t temperature upstream of filter, C p a absolute air pressure upstream of filter, kpa relative humidity upstream of the filter, % p sf air flow meter static pressure, kpa air density upstream of filter, kg/m 3

7 PX14794B 5 (6) EN779:22 - Pressure drop and arrestance after different dust loading phases Air filter: F6 Microglas, art.nr 615M1 SP Date p 1 dm m tot p 2 m 1 m 2 m m d A A m Pa g g Pa g g g g % % 24/2/ /2/ /2/ /2/ /2/ Symbols and units A arrestance, % A m average arrestance, % dm dust increment, g p 1 p 2 m d m 1 m 2 m tot m pressure drop before dust increment (air density 1.2 kg/m³), Pa pressure drop after dust increment (air density 1.2 kg/m³), Pa dust in duct after device, g mass of final filter before dust increment mass of final filter after dust increment total mass of dust fed to filter, g mass gain of final filter, g Mass of tested item: Clean filter: After complete test: g g Test dust ASHRAE 52/76, Particle Technology Ltd. Batch no: 7681

8 PX14794B 6 (6) EN 779:22 - Efficiency and pressure drop of untreated filter material Air filter: F6 Microglas, art.nr 615M1 SP Test aerosol: DEHS Discharging method: Isopropanol Air flow rate: 14.5 l/s Media velocity:.16 m/s Size of material sample: 924 cm² Particle size Sample 1 Sample 2 Sample 3 Average µm Efficiency % Interval Mean Pressure drop 39 Pa 39 Pa 38 Pa 39 Pa ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± NOTE The uncertainty of the measured efficiencies is reported on a 95 % confidence level. EN 779:22 - Efficiency and pressure drop of discharged filter material Air filter: Test no. F6 Microglas, art.nr 615M1 SP Test aerosol: DEHS Discharging method: Isopropanol Air flow rate: 14.5 l/s Media velocity:.16 m/s Size of material sample: 924 cm² Particle size Sample 1 Sample 2 Sample 3 Average µm Efficiency % Interval Mean Pressure drop 36 Pa 35 Pa 36 Pa 36 Pa ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± NOTE The uncertainty of the measured efficiencies is reported on a 95 % confidence level.

9 PX14794B 1 (1) Appendix 2