ACRP Report 63: Measurement of Gaseous HAP Emissions from Idling Aircraft as a Function of Engine and Ambient Conditions
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- Synopsis
-
The findings of this project are summarized as follows:
1. Temperature dependence: VOC emission indices are approximately twice as high under cold conditions (-8°C to 0°C) as they are at 15°C for the CFM56-7B24.
2. Fuel flow rate dependence: For the engine states that are likely to be most representative of the operational aircraft taxiway engine state, the VOC emission indices for the CFM56-7B24 are approximately 40% greater than the ICAO certification engine state (7% thrust).
3. VOC speciation: The composition profile of the exhaust is constant. The ratios of individual VOCs (e.g., formaldehyde to 1,3-butadiene) remain constant over all thrust settings and temperatures encountered. The first two findings are thus expected to be applicable to all VOCs measured, with the exception that there is a dependence of benzene emissions on fuel aromatic content.
- Copyright:
- 2012
Book Details
- Book Quality:
- Publisher Quality
- Publisher:
- The National Academies Press
- Date of Addition:
- 07/24/15
- Copyrighted By:
- National Academy of Sciences
- Adult content:
- No
- Language:
- English
- Has Image Descriptions:
- No
- Categories:
- Nonfiction, Science
- Submitted By:
- Bookshare Staff
- Usage Restrictions:
- This is a copyrighted book.