Development of Biogas-Diesel Engine for Farm Use (Part 3): robustness of optimized biogas supply schedule

摘要

In our research a dual-fuel diesel engine was operated with biogas and diesel fuel. The performanceof the engine was able to be increased by optimized scheduling of biogas supply to the engine by usinga buffering tank. In this method, it is assumed that the profiles of biogas production and the engineload are fixed every day. But it is expected that these profiles are changing every day. Therefore, thedeclaration of the engine performance caused by such fluctuation was evaluated. The fluctuation ofbiogas production profile had almost no effect on the engine performance, but had more effects onengine load. But in many cases, the declaration of the performance were not so significant. Thereforethe optimized schedule of biogas supply has the robustness against the fluctuation of the operatingsituation.