Development of High-Efficiency Miller Cycle Gas Engine

摘要

Gas engine cogeneration is gaining popularity, due to its high efficiency and low exhaust emission. Recent technological progress in gas engines and gas turbines has led to high cogeneration efficiency. As the advantages of cogeneration have become more widely recognized by customers with comparatively low demands for heat, it has become more widely used in a variety of fields. This trend is expected to accelerate and further improvement in generation efficiency of gas engines is an urgent task. Mitsubishi Heavy Industries, Ltd. and Osaka Gas Co., Ltd. have jointly applied the Miller cycle to a lean-burn gas engine, developing the world's first gas engine in this class to achieve 40 percent generation efficiency. The 280 kW engine was commercially released in April 2000.