作者: Yuxin Yang , Hongguang Zhang , Guohong Tian , Yonghong Xu , Chongyao Wang
DOI: 10.1007/S11630-019-1069-9
关键词:
摘要: In an organic Rankine cycle (ORC) system, the working fluid pump plays important role in system performance. This paper focused on operating characteristics of a multistage centrifugal at various speeds and condensation conditions. The experimental investigation was carried out to assess influence performance by ORC with special attention actual net power output, thermal efficiency as well back work ratio (BWR). results showed that increase speed led mass flow rate expand range outlet pressure. decreased nonlinearly pressure from 0.22 2.41 MPa; electric consumption changed between 151.54 2409.34 W mechanical 7.90% 61.88% when varied 1160 2900 r/min. Furthermore, lower specific achieved higher efficiency, which suggested ultra-low promising candidate for system. also effects conditions increasing BWR relatively sensitive conditions, especially low speed.