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50% H2020 - GA n°755563 ECS HyBRid adsorption ... · The objective of the Breeze project is the...
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Particle filtration Hybrid adsorption-TiO 2 PCO Activation by UVA LEDs 50% 50% ECS HyBRid adsorption-photocatalytic air filtEr for rEmoving pollutants and odours from aircraft cabin Z onE Martinez Thomas, 1 Sanchis Sonia, 1 Roux Paul, 2 Dinca Marilena, 2 Dreibine Lamia, 3 Garcia-Montaño Julia 1 (1)LEITAT Technological Center, Terrassa, Spain. (2)Pall Europe Limited, Portsmouth, United Kingdom (3)Liebherr-Aerospace, Toulouse, France. [email protected] H2020 - GA n°755563 MATERIALS This configuration, along with a high occupation density, leads to the dispersion of germs and viruses and the accumulation of pollutants: • Ozone from outside air • Volatile organic compounds (VOC) • Bioeffluents (acetone and ethanol) • VOC representative of indoor atmosphere • Polybrominated diphenyl ethers (PBDEs) used as flame retardants • Bio-contaminants (bacteria and viruses) In the majority of aircraft approximately half of the cabin air is exhausted while the other half is recirculated, passing through a High Efficiency Particulate Air (HEPA) filter to extract contaminants (particles, bio-contaminants) [1], after which it is mixed with outside air to be returned to the cabin. The mixing ratio is controlled by the Environmental Control System (ECS) which provides air supply, thermal control and pressurization of the cabin. Weight (kg) 9 kg clean Length and width (mm) 550 mm x 550 mm Life span of filter (h) >3,000 h Treated air flow (L/s) 300 L/s up to 6,000 ft 420 L/s up to 8,000 ft Pressure drop (mbar) 6 mbar clean to 10 mbar end of life Relative humidity 15% Temperature 23ºC EXPERIMENTS IN ENVIRONMENT CONTROL SYSTEM (ECS) DEMONSTRATOR REFERENCES [1] DR. Space, RA. Johnson, WL Rankin, NL Nagda, in Air quality and comfort in airliner cabins, NL. Nagda, (Ed), West Conshohocken, ASTM International, 2000, p. 189. [2] CleanSky2 Joint Technical Programme. Brussels, 23 March 2015. The optimised BREEZE device will be integrated in an Environment Control System (ECS) demonstrator in Liebherr Aerospace’s facilities for its final validation in an operational environment (TRL 6). EXPERIMENTS AT LAB SCALE E-ECS demonstrator for large aircraft [2] Constraints for air filter subassembly integration in the ECS Combination of adsorption and photocatalysis activated by UV-LED concept Continuous single pass setup (lab scale) Recirculation loop (prototype testing) INTRODUCTION CONCLUDING REMARKS The objective of the Breeze project is the development of a novel air purifier capable of removing pollutants and bio-contaminants in the aircraft cabin zone. The device will be installed after the HEPA filtration stage of the recirculated air and will provide efficient and durable degradation of ozone, VOCs, PBDEs and bio-contaminants. Filter material, lighting system and reactor configuration will be optimised to achieve elimination of VOCs (>85% removal), PBDEs (up to 95% removal), ozone (up to 80% removal) and microbiological contamination (>95% inactivation) at lab and pilot scale. Possible generation of by-products in the gas phase will be taken into account. Filter durability will be assessed with an expected life time of 3000 hours under real humidity/pressure conditions. The combination of adsorption and photocatalysis has shown promising results on the degradation of organic pollution. The adsorbent retains the pollutant close to the catalyst surface, enhancing their decomposition through the transfer of the adsorbed molecules onto the photoactive particles. This combined process should conduct to low generation of by-products and high durability of the filter (cleaned by photocatalysis). Configuration of the reactor Results obtained at lab scale will be checked: • VOC concentration (total -TVOC- and individual compounds) • Ozone • Bio-contaminants • Pressure drop of the filter Prototype will be tested with air recirculation in a closed-loop at high air flow rate (400L/s, real flow that will be treated in an aircraft) In this setup, the pollutant is continuously injected into the reactor, controlling pollutant concentration, air humidity and total flow rate. Number and configuration of UV-LEDs and filters will be optimised and two reactor’s geometries will be tested: annular flat sheet UVA LED Air Filter Air Filter (pleated) UVA LED strip This poor quality of cabin air has been related with symptoms such as headaches, blurred vision, dizziness, nausea and other health problems. This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement nº755563 MFC: Mass flow controller Air TiO 2 TiO 2 TiO 2 TiO 2 Activated carbon Synthetic fibers Synthetic fibers Centrifugal fan Reactor ∆P Injection & sampling port TVOC Air velocity probe reactor MFC 1 MFC 2 MFC 3 Air water Syringe pump Adsorbent PID evaporator
Transcript of 50% H2020 - GA n°755563 ECS HyBRid adsorption ... · The objective of the Breeze project is the...
Particle filtrationHybrid
adsorption-TiO2 PCO
Activation by UVA LEDs
50%
50%
ECS
HyBRid adsorption-photocatalytic air filtEr for rEmoving pollutants and odours from aircraft cabin ZonE
Martinez Thomas,1 Sanchis Sonia,1 Roux Paul,2 Dinca Marilena,2 Dreibine Lamia,3 Garcia-Montaño Julia1
(1)LEITAT Technological Center, Terrassa, Spain. (2)Pall Europe Limited, Portsmouth, United Kingdom (3)Liebherr-Aerospace, Toulouse, France. [email protected]
H2020 - GA n°755563
MATERIALS
This configuration, along with a high occupation density, leads to the dispersion ofgerms and viruses and the accumulation of pollutants:• Ozone from outside air• Volatile organic compounds (VOC)
• Bioeffluents (acetone and ethanol)• VOC representative of indoor atmosphere
• Polybrominated diphenyl ethers (PBDEs) used as flame retardants• Bio-contaminants (bacteria and viruses)
In the majority of aircraft approximately half of the cabin air is exhausted while theother half is recirculated, passing through a High Efficiency Particulate Air (HEPA) filterto extract contaminants (particles, bio-contaminants) [1], after which it is mixed withoutside air to be returned to the cabin. The mixing ratio is controlled by theEnvironmental Control System (ECS) which provides air supply, thermal control andpressurization of the cabin.
Weight (kg) 9 kg cleanLength and width (mm) 550 mm x 550 mm
Life span of filter (h) >3,000 h
Treated air flow (L/s)300 L/s up to 6,000 ft420 L/s up to 8,000 ft
Pressure drop (mbar)6 mbar clean to 10 mbar
end of lifeRelative humidity 15%
Temperature 23ºC
EXPERIMENTS IN ENVIRONMENT CONTROL SYSTEM (ECS) DEMONSTRATOR
REFERENCES[1] DR. Space, RA. Johnson, WL Rankin, NL Nagda, in Air quality and comfort in airliner cabins, NL. Nagda, (Ed), West Conshohocken, ASTM International, 2000, p. 189.
[2] CleanSky2 Joint Technical Programme. Brussels, 23 March 2015.
The optimised BREEZE device will be integrated in an EnvironmentControl System (ECS) demonstrator in Liebherr Aerospace’s facilities forits final validation in an operational environment (TRL 6).
EXPERIMENTS AT LAB SCALE
E-ECS demonstrator for large aircraft [2] Constraints for air filter subassembly integration in the ECS
Combination of adsorption and photocatalysis activated by UV-LED
concept
Continuous single pass setup (lab scale) Recirculation loop (prototype testing)
INTRODUCTION
CONCLUDING REMARKS
The objective of the Breeze project is the development of a novel air purifier capable of removing pollutants and bio-contaminants in the aircraft cabin zone. The devicewill be installed after the HEPA filtration stage of the recirculated air and will provide efficient and durable degradation of ozone, VOCs, PBDEs and bio-contaminants.
Filter material, lighting system and reactor configuration will be optimised to achieve elimination of VOCs (>85% removal), PBDEs (up to 95% removal), ozone (up to 80%removal) and microbiological contamination (>95% inactivation) at lab and pilot scale. Possible generation of by-products in the gas phase will be taken into account. Filterdurability will be assessed with an expected life time of 3000 hours under real humidity/pressure conditions.
The combination of adsorption and photocatalysishas shown promising results on the degradation oforganic pollution. The adsorbent retains thepollutant close to the catalyst surface, enhancingtheir decomposition through the transfer of theadsorbed molecules onto the photoactive particles.This combined process should conduct to lowgeneration of by-products and high durability of thefilter (cleaned by photocatalysis).
Configuration of the reactor
Results obtained at lab scale will be checked:• VOC concentration (total -TVOC- and individual compounds)• Ozone• Bio-contaminants• Pressure drop of the filter
Prototype will be tested with air recirculation in a closed-loop at high air flowrate (400L/s, real flow that will be treated in an aircraft)
In this setup, the pollutant is continuously injected into the reactor, controllingpollutant concentration, air humidity and total flow rate.
Number and configuration of UV-LEDs and filters will be optimisedand two reactor’s geometries will be tested:
annular flat sheet
UVA LED
Air
Filter
Air
Filter (pleated)
UVA LED strip
This poor quality of cabin air has been related with symptoms such as headaches,blurred vision, dizziness, nausea and other health problems.
This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement nº755563
MFC: Mass flow controller
Air
TiO2TiO2 TiO2 TiO2
Activated carbon
Synthetic fibers
Synthetic fibers
Centrifugal fan
Reactor
∆P
Injection & sampling port
TVOC
Air velocity probe
reactor
MFC
1
MFC
2
MFC
3Air
water
Syringe pump
Adsorbent
PID
evaporator
