Influence of intake pressure on the performance of single screw expander working with compressed air
作者： Wei He , Yuting Wu , Yanhai Peng , Yeqiang Zhang , Chongfang Ma
DOI: 10.1016/J.APPLTHERMALENG.2012.10.013
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摘要: Abstract In order to meet the demand of small expander in field waste heat recovery, distributed renewable energy, gas liquefaction and compressed air vehicles, a single screw with 175 mm diameter rotor is developed our lab. An experimental system using has been built test performance expanders. The experiments were conducted for different intake pressure, important parameters measured, such as flow rate, exhaust temperature, output power rotating speed. influence pressure on was obtained. Results indicate that satisfactory economic can be obtained at high rotational speed, meanwhile good working efficiency maintained. speed 2800 rpm considered best fitting formulae are given dynamic performances versus pressures. highest overall reached 55% maximum 22 kW. preliminary study indicates very first generation self-developed
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