Mechanical Load Performance Measurements of a Low Temperature Differential Stirling Engine with Water-Sprayed Heat Transfer according to Supply Water Flow Rates and Temperatures
스프레이 열전달을 이용한 저온도차 스털링 엔진의 고온수 공급 유량 및 온도에 따른 기계 부하성능 실험

Kyuho Sim, Min-Seong Jeong, Yoon-Pyo Lee, Seon-Jun Jang
2015 The KSFM Journal of Fluid Machinery  
Recently, Stirling engines are emerging as a key device for power conversion of renewable energy or waste energy. This study develops a LTDSE(Low Temperature Differential Stirling Engine) using a water spray for higher heat transfer and performs load performance tests for various flow rates and temperatures of hot water spray for variable engine loads emulated by a mechanical friction device. Internal temperature and pressure, working frequency and inlet and outlet temperature of the supply
more » ... e of the supply water are measured. As a result, the increases in flow rate and temperature of hot water respectively enhance the power output, efficiency and the working frequency, while the increasing engine load leads to decreases in working frequency but increases in the pressure amplitude. Eventually, it is revealed there exists a maximum shaft power of the test engine.
doi:10.5293/kfma.2015.18.1.029 fatcat:2c2bygoxm5egbglenyxddrl3iu