This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Aircraft Exhaust Nonvolatile Particle Matter Measurement Method Development
- Aerospace Standard
Published November 20, 2018 by SAE International in United States
Downloadable datasets availableAnnotation ability available
This report provides current practice measurement methods for quantifying nonvolatile particle matter at the exit plane of aircraft gas turbine engines. This document contains detailed information for many instruments and techniques, described in AIR5892A, that have been applied in aircraft engine field tests since AIR5892A was first issued in April 2003. There are four sections, identified as Technical Appendices (TA), presenting measurement techniques, sampling, and quantification of nonvolatile particles. The sections are written in the format of Aerospace Recommended Practice (ARP) documents and intended to progress to recommended practices upon overcoming existing technical challenges. Many important technical advances have been accomplished that comprise the Aircraft Engine Exhaust Nonvolatile Particle Matter Measurement Method Development techniques described in TA A: Particle Mass,TA B: particle Number and Size,TA C: Particle Sampling, and TA D: Calculation of Particle Number and particle Mass Emission Indices.
Various measurement methodologies and operability and compatibility issues are described within the TAs. The TAs briefly discuss degrees of sensitivity, accuracy, repeatability, and test operations acceptability for each measurement discipline. They reflect that many important technical advances have been accomplished for measurement techniques of nonvolatile particles. Additional research is required to transition the TAs to Aerospace Recommended Practices.
AIR6037 addresses aircraft exhaust nonvolatile particulate matter (nvPM) measurement method development. It continues the documentation of the state-of-the-art in sampling and measurement technologies, initially captured in AIR5892, issued in 2004. Many of the instruments, techniques, and methods described in AIR6037 had matured through application in aircraft engine field tests, generally occurring in the 2003 to 2008 time frame. AIR6037 consists of technical appendices describing the technical advancements in particle mass, number and size measurement, particle sampling, and calculation of particle number and mass emission indices. Research and test campaigns have continued since AIR6037 was issued, in 2010, driving further development of the sampling system and some of the measurement instruments. These developments are described in a subsequent aerospace information report, AIR6241, issued in 2013. Because further improvements to both sampling system and measurement instrument components are contained in AIR6241, SAE E-31 Committee members have recommended stabilizing AIR6037 in order to maintain it as useful technical documentation in the progression of AIR5892, AIR6037, and AIR6241 toward the development of ARP6320.
Data Sets - Support Documents
|TABLE A1A||AVAILABLE METHODS FOR THE MEASUREMENT OF PARTICLE MASS CONCENTRATIONS IN AIRCRAFT ENGINE EXHAUST|
|TABLE A1B||SELECTED METHODS FOR THE MEASUREMENT OF PARTICLE MASS CONCENTRATIONS IN AIRCRAFT ENGINE EXHAUST|
|TABLE B1||IDEALIZED AIRCRAFT DATA OBTAINED WITH A PARTICLE SIZER FOR AN ASSUMED LOGNORMAL PARTICLE SIZE DISTRIBUTION|
|TABLE C1||PENETRATION EFFICIENCY FOR SAMPLING LINE LENGTHS OF 5 M AND 10 M AT T = 293 K, P = 1013.25 HPA, AND Q = 10 L/MIN|
|TABLE C2||PENETRATION EFFICIENCY FOR SAMPLING LINE LENGTHS OF 5 M AND 10 M AT T = 423 K (150 °C), P = 1013.25 HPA, AND Q = 10 L/MIN|
|AIR5892B||Nonvolatile Exhaust Particle Measurement Techniques|
|ARP1179D||Aircraft Gas Turbine Engine Exhaust Smoke Measurement|
* Redlines comparisons are available for those standards listed in the Revision History that contain a radio button. A redline comparison of the current version against a revision is accomplished by selecting the radio button next to the standard and then selecting 'compare'. At this time, Redline versions only exist for some AMS standards. SAE will continue to add redline versioning with ongoing updates to SAE MOBILUS.