本文選題：熱泵 + 回?zé)嵫h(huán)�。� 參考：《低溫與超導(dǎo)》2016年10期

【摘要】：為研究R12回?zé)嵫h(huán)對航天器單級蒸汽壓縮式熱泵系統(tǒng)性能的影響,搭建了熱泵性能測定實驗裝置,從排氣溫度、耗功量、制冷量及制冷系數(shù)等方面分析了回?zé)嵫h(huán)對熱泵系統(tǒng)性能的影響。結(jié)果表明:在有、無回?zé)嵫h(huán)兩種工況下,實驗測得的排氣溫度、耗功量、制冷量、制冷系數(shù)均隨量熱器溫度的升高而增大;同一量熱器溫度下,回?zé)嵫h(huán)在提高系統(tǒng)制冷量的同時會增加壓縮機耗功,引起排氣溫度升高,但制冷量的增長幅度大于壓縮機耗功的增長幅度。當(dāng)量熱器內(nèi)溫度為16℃、20℃、24℃、28℃時,回?zé)嵫h(huán)帶來的制冷系數(shù)增長率分別為50%、39.6%、32.7%、27.6%。因此R12回?zé)嵫h(huán)對提高系統(tǒng)制冷系數(shù)是有效的。在此基礎(chǔ)上,基于Aspen Plus軟件建立了實驗流程模型,采用NRTL-RK物性方法對有、無回?zé)釤岜醚h(huán)進行模擬計算。模擬結(jié)果與實驗結(jié)果兩者間誤差較小,說明軟件模擬實際熱泵流程的可靠性較高,今后可進一步利用Aspen Plus軟件作熱泵系統(tǒng)性能的深入研究。
[Abstract]:In order to study the effect of R12 reheat cycle on the performance of single-stage steam compression heat pump system of spacecraft, an experimental device for measuring the performance of heat pump was set up, which was based on exhaust temperature and power consumption. The effect of regenerative cycle on the performance of heat pump system is analyzed in terms of refrigerating capacity and refrigeration coefficient. The results show that the exhaust temperature, power consumption and refrigeration coefficient are increased with the increase of the calorimeter temperature under the two conditions of no regenerative cycle, and at the same calorimeter temperature, The regenerative cycle not only increases the cooling capacity of the system, but also increases the power consumption of the compressor, which leads to the increase of the exhaust temperature, but the increase of the refrigerating capacity is larger than the increase of the power consumption of the compressor. When the temperature in the calorimeter is 16 鈩，

本文編號：1968100