Experimental verification of principal losses in a regulatory particulate matter emissions sampling system for aircraft turbine engines.

ABSTRACT: A sampling system for measuring emissions of nonvolatile particulate matter (nvPM) from aircraft gas turbine engines has been developed to replace the use of smoke number and is used for international regulatory purposes. This sampling system can be up to 35 m in length. The sampling system length in addition to the volatile particle remover (VPR) and other sampling system components lead to substantial particle losses, which are a function of the particle size distribution, ranging from 50 to 90% for particle number concentrations and 10-50% for particle mass concentrations. The particle size distribution is dependent on engine technology, operating point, and fuel composition. Any nvPM emissions measurement bias caused by the sampling system will lead to unrepresentative emissions measur

SUBMITTER: Kittelson DB 

PROVIDER: S-EPMC9118390 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature