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Article

Effect of Increased Cabin Recirculation Airflow Fraction on Relative Humidity, CO2 and TVOC

1
Fraunhofer Institute for Building Physics IBP, 83626 Valley, Germany
2
Institute and Clinic for Occupational, Social and Environmental Medicine, LMU University Hospital Munich, 80336 Munich, Germany
3
Department of Civil Engineering, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
*
Author to whom correspondence should be addressed.
Aerospace 2021, 8(1), 15; https://doi.org/10.3390/aerospace8010015
Received: 24 November 2020 / Revised: 23 December 2020 / Accepted: 23 December 2020 / Published: 13 January 2021
In the CleanSky 2 ComAir study, subject tests were conducted in the Fraunhofer Flight Test Facility cabin mock-up. This mock-up consists of the front section of a former in-service A310 hosting up to 80 passengers. In 12 sessions the outdoor/recirculation airflow ratio was altered from today’s typically applied fractions to up to 88% recirculation fraction. This leads to increased relative humidity, carbon dioxide (CO2) and Total Volatile Organic Compounds (TVOC) levels in the cabin air, as the emissions by passengers become less diluted by outdoor, dry air. This paper describes the measured increase of relative humidity, CO2 and TVOC level in the cabin air for the different test conditions. View Full-Text
Keywords: aircraft air quality; adaptive ECS; subject testing aircraft air quality; adaptive ECS; subject testing
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MDPI and ACS Style

Norrefeldt, V.; Mayer, F.; Herbig, B.; Ströhlein, R.; Wargocki, P.; Lei, F. Effect of Increased Cabin Recirculation Airflow Fraction on Relative Humidity, CO2 and TVOC. Aerospace 2021, 8, 15. https://doi.org/10.3390/aerospace8010015

AMA Style

Norrefeldt V, Mayer F, Herbig B, Ströhlein R, Wargocki P, Lei F. Effect of Increased Cabin Recirculation Airflow Fraction on Relative Humidity, CO2 and TVOC. Aerospace. 2021; 8(1):15. https://doi.org/10.3390/aerospace8010015

Chicago/Turabian Style

Norrefeldt, Victor, Florian Mayer, Britta Herbig, Ria Ströhlein, Pawel Wargocki, and Fang Lei. 2021. "Effect of Increased Cabin Recirculation Airflow Fraction on Relative Humidity, CO2 and TVOC" Aerospace 8, no. 1: 15. https://doi.org/10.3390/aerospace8010015

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