关键词: 转子发动机, 性能, ＧＴＰＯＷＥＲ, 甲醇

Abstract: Methanol is considered an ideal alternative fuel for engines due to its high oxygen content, good combustion performance and clean emissions. Taking a gasoline rotary engine as the research object, and the simulation results of the model are compared and verified by using the test results.On this basis, the influence of methanol substitution ratio on the combustion process and performance of rotary engine is studied, and the following results are obtained: The mixing of methanol in gasoline can increase the combustion rate of the mixture, increase the cylinder pressure of the rotary engine and advance the combustion phase.When the methanol mixing ratio is low, the performance of the rotary engine is significantly improved, the crankshaft angle corresponding to the peak of the cylinder pressure is close to the TDC, and the engine power and torque are increased by 13.6% and 12.8% compared with pure gasoline.When the methanol mixing ratio is high, the engine combustion phase is too advanced, the compression negative work increases, the engine power improvement effect is reduced, and the engine power increase is only 5.9% when M100 is used.