Waukesha Engine has developed an advanced power generation engine using technologies that were developed as part of the Department of Energy-Advanced Reciprocating Engine Systems (ARES) program. The engine uses lean-burn technologies for high efficiency, and low NOx emissions. The technical goals for the ARES program were 50% Brake Thermal Efficiency (BTE) and 0.075 g/kW-hr NOx emissions (with aftertreatment). The goals for the Waukesha Engine Phase 1 Advanced Power Generation (APG) engine are 42% Brake Thermal Efficiency (BTE) and 0.75 g/kW-hr (1.0 g/Bhp-hr) NOx emissions, capable of 0.075 g/kW-hr (0.1 g/Bhp-hr) with aftertreatment. The barriers and technical paths applied to achieve this performance are discussed in this paper.

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