双级压缩的英文
compression; double-stage
double stage compression
two-stage compression
例句与用法
- Two - stage compression cycle for water heaters in air source heat pumps
空气源热泵热水器双级压缩循环研究 - Research on two - stage compression variable frequency air source heat pump in cold regions
用于寒冷地区双级压缩变频空气源热泵的研究 - Formula for refrigerating capacity of two - stage compression refrigeration cycle based on piston displacement of high pressure stage
基于高压级活塞排量的双级压缩制冷循环制冷量计算式 - From the performance analysis of the inverter heat pump air conditioner , heat pump type vrf ( variable refrigerant flowrate ) air conditioning system , two - stage compression inverter air source heat pump , and cooling / heating / how - water inverter air source heat pump , the expanded function and performance improvement of air source heat pump from the variable frequency technology are analyzed in this paper
摘要以变频热泵空调器、热泵型vrf空调系统以及我们提出的双级压缩变频空气源热泵系统、供冷/供热/供生活热水变频空气源热泵系统为研究对象，分析变频技术引入空气源热泵系统带来的功能拓展和性能提升。 - This paper offers some performance data calculate with computer program and figures which variation of performances of refrigeration in different refrigerants and circle with evaporating temperature . it shows that it is feasible to calculate thermodynamic properties of refrigerants with equation of state pr in ideal circle and new refrigerants sfuch as r134a , r152a have not more coefficient of performance ( cop ) than r22 in single - press circle but still have preferable practical value in freezing refrigeration ; the results also demonstrate the importance and need for applying mixed - refrigerant in freezing
本文给出了几种制冷工质在单级和双级压缩制冷循环下的一些性能数据及各性能随蒸发温度变化比较图。结果表明，利用pr方程得出的制冷工质物性，可用于计算制冷循环性能；在单级制冷循环中， r12和r22仍具有较高的制冷系数，但新工质如r134a 、 r152a在较低温度制冷中具有很高的研究价值；计算也表明，在较低温度制冷中，混合工质的研究是极有价值的。
