Testing of a 4-Stroke Lean Burn Gas-Fired Reciprocating Internal CombustionEngine to Determine the Effectiveness of an Oxidation Catalyst System for Reduction of Hazardous Air Pollutant Emissions

摘要

The United States Environmental Protection Agency (EPA) is investigatingReciprocating Internal Combustion Engines (RICE) to characterize engine emissions and catalyst control efficiences of hazardous air pollutants (HAP). This document describes the results of emissions testing conducted on a Waukesha 3521GL natural-gas-fired 4-stroke, lean burn (4SLB) engine. Early in 1998, several industry and EPA representatives agreed that the Waukesha 3521GL engine at the Colorado State University's Engine and Energy Conversion Laboratory (CSU EECL) is adequately representative of existing and new natural-gas-fired 4SLB engines. The group agreed that a matrix of test results from testing conducted at the EECL could be used to develop Maximum Achievable Control Technology (MACT) standards for RICE. The group further agreed that an oxidation catalyst installed on the Waukesha 3521GL could be used to determine the effectiveness of oxidation catalysts for these engines, and that the EPA could use the results from testing at the 4SLB matrix conditions at CSU as the basis for developing the MACT standard for natural-gas-fired 4SLB engines.