Study on the temperature compensation technology of air-powered engine

First, the principle of the temperature drop in the air-powered engine (APE) is studied in this paper. The thermodynamic model of the APE and the calculation model for equivalent air temperatures in critical locations of the APE are proposed. Second, through the calculation by the models above, the temperature drop of the APE causes the ice blocking to influence the APE working negatively. And it is a particular problem that conventional gasoline engines will not meet. To solve the ice blocking problem without consuming additional energy out of the APE system, a heat exchange structure for the APE is designed to compensate the drop temperature and make sure the APE work efficiently. To verify the APE works in a good temperature distribution situation, some simulations are done, it is shown that the APE with the heat exchange structure works better in temperature distribution and ice blocking prevention. In addition to this, the results of simulation are verified by experiments. In conclusion, the APE with the heat exchange structure can avoid the ice blocking problem. Besides, it can help improve the APE's working efficiency by about 30%. The study provides a theoretical basis for further research on the principle of the temperature drop and heat exchange in the APE.