コージェネレーション用希薄燃焼ガスエンジンの高効率化へ向けた取り組み(FP5 レシプロエンジンの環境対応技術)

概要

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Dramatic improvement in power generation efficiency has become the most urgent task for cogeneration systems. In this paper, 300kW class lean bum gas engine was improved mainly in the aspect of thermal efficiency. First, the differences between gas engines and diesel engines that had higher thermal efficiency were simulated. On the basis of these results, technical problems to be solved to achieve higher efficiency in gas engines were narrowed down to the several points. Then, the miller cycle and other methods which had possibility to solve these problems were applied to the experimental engine. Here, we verified that the application of these technologies to a pre-chamber lean bum gas engine did-help improve thermal efficiency. When these technologies were applied to the new gas engine, thermal efficiency was dramatically improved to over 43%, highest value in 300kW class engines.
社団法人日本機械学会の論文
2004-06-22