Experimental Analysis of Ventilation Effectiveness and Tracer Gas Dispersion in a Boeing-737 Mockup Cabin (HC-17- 10)

Details

• Personal Author:
  Bennett J ; Hosni MH ; Jones B ; Patel J
• Description:
  High occupant density in an aircraft cabin raises passenger health concerns related to spread of diseases and/or contaminants. To ensure a safe and comfortable cabin environment, it is imperative to understand the various factors affecting the quality of air in an aircraft cabin. Ventilation effectiveness is one such factor which needs to be understood and studied well. Ventilation effectiveness is defined as "The ability of the air distribution system to remove internally generated pollutants or contaminants from a building, zone or space" (ASHRAE 2013). One of the purposes of this study is to evaluate the local effective ventilation rates (eL) and ventilation effectiveness (E) inside an aircraft cabin mockup. Experiments were also conducted to examine the dispersion of gaseous contaminants inside an airliner cabin mockup. All experimentation documented in this paper was carried out in a five-row, full-scale, Boeing 737 cabin section. For the purpose of this study, manikins wrapped with heater wires occupied all seats inside the cabin. Each manikin was connected to a 115V AC supply to generate 100 W(341 BTU/hr) of heat to account for the thermal load inside an aircraft cabin. To study the effectiveness of the ventilation system, carbon dioxide (CO2) was used as a tracer gas. The ventilation effectiveness was evaluated using the tracer gas decay technique. This study shows that the ventilation effectiveness is uniform throughout the cabin with no distinct relation to the seat locations or height. [Description provided by NIOSH]
• Subjects:
  Aircraft Air Pollution, Indoor Hot Temperature Occupational Health Safety Ventilation
• Keywords:
  Heat Regulation IEQ Indoor Air Pollution Indoor Environmental Quality Indoor Environments Ventilation Systems
• Publisher:
  American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE)
• Document Type:
  Text
• Genre:
  Abstract or Summary
• Place as Subject:
  Kansas ; Ohio ; OSHA Region 5 ; OSHA Region 7
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DART - Division of Applied Research and Technology
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  5
• NIOSHTIC Number:
  nn:20050933
• Citation:
  Proceedings of the Second International Conference on Energy and Indoor Environment for Hot Climates: Outdoor Cooling Technologies, Challenges, and Opportunities for the Hot Climates, February 26-27, 2017, Doha, Qatar. Atlanta, GA: American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), 2017 Feb; :5
• Federal Fiscal Year:
  2017
• NORA Priority Area:
  Transportation, Warehousing and Utilities
• Peer Reviewed:
  False
• Source Full Name:
  Proceedings of the Second International Conference on Energy and Indoor Environment for Hot Climates: Outdoor Cooling Technologies, Challenges, and Opportunities for the Hot Climates, February 26-27, 2017, Doha, Qatar
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:5e70b33a4c1f5fd69051972c0db4205d010530a078b50d3512bc470e52dbb26cee254368521e82da236c2fe5fef1fe112be2be5e811ab9c4450c4448069fb586
• Download URL:
  https://stacks.cdc.gov/view/cdc/211112/cdc_211112_DS1.pdf
• File Type:
  [PDF - 389.94 KB ]