Fuel Property Effects on T700 Exhaust Particulates
Abstract
T700 engine and combustor-rig tests were conducted to evaluate fuel and additive effects on exhaust particulates. Six base fuels were used ranging from a zero-aromatics synthetic fuel to diesel fuel. The effect of copper contamination on particulates was evaluated as was the effect of the additive Spec*Aid 8Q462, which has been shown to reduce particulates in some other testing. Particulates were characterized by both mass and size distribution. Particulate mass correlated equally well with the fuel aromatic content, hydrogen content, and smoke point. More importantly, in the engine tests, an excellent correlation was found between the particulate mass on the filters and the integrated particulate volume calculated from the particulate-size distribution. The presence of copper contamination did not affect the concentration or size of particulates. Limited results on two fuels without replication showed a 10 to 15% reduction in particulates at the cruise condition with the 8Q462 additive. The results indicate that a zero-aromatics fuel will reduce particulate mass about 25% compared to an average JP-5. Alternately, F-76 diesel fuel would be expected to double the particulate mass.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 2004
- Accession Number
- ADA468740
Entities
People
- Clifford A. Moses
Organizations
- Southwest Research Institute