Exhaust Emission Factors for Nonroad Engine Modeling: Spark-Ignition, July 2010, NR-010f

摘要

This report describes and documents exhaust emission factors, crankcase estimates, and brake specific fuel consumption (BSFC) estimates used for spark ignition (SI) engines in EPAs final NONROAD2008a emission inventory model. It covers engines powered by gasoline, natural gas and liquefied petroleum gas. Relative to the December 2005 version of this report, this version has been updated to incorporate the standards in the 2008 final rulemaking affecting small nonroad SI engines and equipment, as well as marine SI engines and vessels.