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用于120~150℃蒸汽生产的超高温空气源自由活塞斯特林热泵性能研究
Study on Performance of Ultra-High Temperature Air Source Free Piston Stirling Heat Pump for Producing 120~150℃ Steam
【摘要】 现有高温工业蒸汽主要产自于化石燃料燃烧,为减少碳排放和提高能源利用率,需提高可再生能源电力占比,同时开发一种高效、环保的电驱动超高温热泵系统代替传统化石能源蒸汽锅炉。本文针对一种用于产生高温蒸汽的电驱动空气源自由活塞斯特林热泵,基于SAGE软件对其在不同压力、频率和大温差情况下的性能进行了计算研究。研究表明,该系统在大温差供热领域性能优良;在环境温度20℃、供热温度120℃、工作频率45 Hz和平均压力8 MPa的工况条件以及1500 W的热端供热量目标下,系统整机供热系数达2.5,相对卡诺效率63.6%。
【Abstract】 The existing high-temperature industrial steam is mainly produced from fossil fuel combustion. In order to reduce carbon emissions and improve energy utilization efficiency, it is necessary to increase the proportion of renewable energy power. At the same time, it is necessary to develop an efficient and environmentally friendly electrically driven ultra-high temperature heat pump system to replace the traditional fossil energy steam boiler. In this paper, the performance of an electrically driven air-source free-piston Stirling heat pump used to generate high-temperature steam is calculated and studied under different pressure, frequency and large temperature difference based on SAGE software. The research shows that the system has excellent performance in the field of large temperature difference heating; Under the working conditions of ambient temperature of 20℃, heating temperature of 120℃, working frequency of 45 Hz and average pressure of 8 MPa, as well as the target of heating capacity at the hot end of 1500 W, the overall heating coefficient of the system reaches 2.5, and the relative Carnot efficiency is 63.6%.
【Key words】 ultra high temperature heat pump; electric drive; air source; free piston stirling;
- 【文献出处】 工程热物理学报 ,Journal of Engineering Thermophysics , 编辑部邮箱 ,2023年11期
- 【分类号】TK12
- 【下载频次】9