Experimental Study on Thermodynamic Characteristics of Stirling Engine

Abstract

For the purpose of designing a more efficient Stirling engine, the author experimentally studied the hot cylinder surface temperature changes of micro Stirling engine with heating time, analyzed the cold cylinder surface temperature changes of the engine with heating time as well as cylinder temperature at the start of the engine. It was found that, the hot cylinder temperature of the engine changed with the heating time, which stopped temperature rise when a certain temperature was reached. The engine revolving speed increased with the increase of the hot cylinder temperature. The higher the hot cylinder temperature was, the greater the engine revolving speed was. The cold cylinder temperature of the engine changed with the heating time, which stopped temperature rise when a certain temperature was reached. This study will provide insight into the thermodynamic characteristics of Stirling engine and help us further study the thermal efficiency of the engine.