2) overcooled refrigeration cycle
过冷式制冷循环
3) open cycle cooling
开式循环冷却
1.
The contamination phenomenon of condensate water resulting from condenser leakage in operation of condensating steam turbine with open cycle cooling system by sea - water has been presented, the causes leading to condenser leakage being analysed, and leakage searching method as well aft leakage preventing method under operfetion condition being given.
介绍海水开式循环冷却的凝汽式汽轮机在运行中因凝汽器泄漏导致的凝结水污染现象,分析凝汽器发生泄漏原因,并给出运行状态下凝汽器的查漏方法及其防泄漏措施。
4) J-T cooler
节流制冷器
1.
Some key technologies of the engineering application of the fast cooldown J-T cooler and integrated Stirling cryocooler to IR detector had been studied.
对快起动节流制冷器和集成式斯特林制冷机的最低制冷温度、制冷功率、起动时间、热负荷、控温转速和控温功率等进行了工程化研究,有效地解决了关键技术问题,减少热力损失、振动噪声和污染,提高密封性和装配技术水平等。
2.
The mixture refrigerant N2-Ar instead of common refrigerant N2 or Ar is applied for J-T coolers.
在Ar或N2作为节流制冷器首选制冷工质的基础上,提出N2-Ar混合工质,改变了节流制冷器的综合性能,扩展了节流制冷器的应用范围。
5) Cascaded refrigeration cycle
复叠式制冷循环
1.
The R290 water-cooling condenser is designed taking into account the performance characteristic of R290 used in R290/CO2 cascaded refrigeration cycle and the characteristics of condensation heat transfer of R290 two-phase flow.
针对R290的性能特点和管内两相流的冷凝换热特性,设计并制造了R290/CO2复叠式制冷循环中的R290水冷式冷凝器,为自然工质R290/CO2复叠式制冷循环系统的研究和实际应用奠定基础。
2.
The R290/CO2 condenser-evaporator is designed taking into account the heat exchange characteristic of CO2 condensation and R290 evaporation in R290/CO2 cascaded refrigeration cycle.
针对R290/CO2复叠式制冷循环系统中R290与CO2的冷凝蒸发换热特点,设计了R290/CO2冷凝蒸发器,对R290/CO2冷凝蒸发器进行了安全性分析,制造出的U型换热管式R290/CO2冷凝蒸发器,为自然工质R290/CO2复叠式制冷循环系统走向实际应用打下了基础。
3.
Experiment of vapor compression cascaded refrigeration cycle with R290 and CO_2 as the refrigerants was carried out by setting up R290/CO_2 cascaded refrigeration system.
通过建立R290/CO2复叠式制冷系统实验台,对R290/CO2蒸气压缩复叠式制冷循环进行了实验研究,结果表明,CO2循环在较低温度下运行,黏性对CO2经过压缩机的性能影响较大,对流过管路的影响较小,CO2压缩机的压力比高于R290压缩机的压力比,但由于CO2压缩机由吸入的较低温度的工质冷却,CO2压缩机的排气温度低于R290压缩机的排气温度;CO2循环的能量损失较大,使得CO2循环的性能系数低于R290循环的性能系数。
6) cascade refrigeration cycle
复叠式制冷循环
1.
Analysis of thermodynamic performance in CO_2 cascade refrigeration cycle;
二氧化碳复叠式制冷循环的热力性能分析
2.
The COP variation trends and its maximum COP of the cascade refrigeration cycle adopted hydrocarbon mixtures under different evaporation temperature from-80℃ to-60℃ are obtained through theoretical thermodynamic calculation.
通过热力学理论计算,得到了-80~-60℃蒸发温度下采用这些碳氢化合物组合的复叠式制冷循环的最大COP值,以及COP的变化规律,并与R22/R23作为制冷剂的复叠式制冷循环进行了对比;发现了其中R290/R170和R1270/R170与R22/R23性能接近;可以作为复叠式制冷循环的替代制冷剂。
3.
Focuses on the effect of heat exchangers on the performance of CO_2/R290、CO_2/NH_3 cascade refrigeration cycle.
以CO2/R290、CO2/NH3复叠式制冷循环为例分析了回热器对系统性能的影响,在考虑回热器对系统质量流量影响的基础上,比较分析了系统制冷量、COP的变化和对最佳中间温度的影响,指出了利用回热器提高复叠制冷系统性能的原则,并建立了高低温回热器效率之间的联系。
补充资料：致冷循环和制冷循环
分子式：
CAS号：
性质：又称致冷循环和制冷循环。冷冻剂在冷冻机中状态变化所遵循的循环。最常见的是压缩式冷冻循环。冷冻剂在低温下吸取热量而蒸发，然后在压缩机内被压缩至高温高压，再经过冷凝器而放出热量，最后经节流膨胀或绝热膨胀至低温状态。通过这样循环，可以不断从低温物体中吸取热量，达到冷冻的目的。
CAS号：
性质：又称致冷循环和制冷循环。冷冻剂在冷冻机中状态变化所遵循的循环。最常见的是压缩式冷冻循环。冷冻剂在低温下吸取热量而蒸发，然后在压缩机内被压缩至高温高压，再经过冷凝器而放出热量，最后经节流膨胀或绝热膨胀至低温状态。通过这样循环，可以不断从低温物体中吸取热量，达到冷冻的目的。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条