APPLICATION OF PELTON-TYPE EXPANDER TO REPLACE THROTTLING VALVE IN REFRIGERATION SYSTEM
In this paper, a Pelton-type expander was developed to replace the throttling valve in small CFCs/HCFCs refrigeration system to recover the energy loss in the expansion process. Based on the geometric and mathematic analysis, a simple backward-curved-blade impeller was designed and engaged in the expander, which can realize the work recovery with compactness and reliability in the small refrigeration system. In the validation tests, an AC generator was used to investigate the performance of the expander at different rotational speed at varying working conditions. The experimental results for a R410A refrigeration system showed that the prototype ran smoothly at the test conditions with the highest rotational speed reaching 23000 rpm. An optimum rotational speed of the impeller at varying test conditions was investigated. Further improvement has been discussed.
Tao HE Lianshang LI Chunli XIA Pengcheng SHU
National Engineering Research Center of Fluid Machinery & Compressor Xi’an Jiaotong University, Xi’an 710049, China
国际会议
The 22nd International Congress of Refrigeration(第22届国际制冷大会)
北京
英文
2007-08-21（万方平台首次上网日期，不代表论文的发表时间）