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1)  overcooled refrigeration cycle
过冷式制冷循环
2)  subcool refrigeration cycle
过冷循环
3)  refrigerative circle system
制冷循环过程
4)  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。
5)  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。
6)  absorption refrigeration cycle
吸收式制冷循环
1.
The contrast between the water-lithium bromide-lithium nitrate and the water-lithium bromide absorption refrigeration cycle;
水—溴化锂—硝酸锂与水—溴化锂吸收式制冷循环的比较
2.
Thermodynamic analysis of ammonia-water absorption refrigeration cycle;
氨水吸收式制冷循环的热力学分析
3.
Studied was the automatic control of energy regulation in a novel lithium-bromide/water absorption refrigeration cycle with energy storage units.
研究新型混合吸收式制冷循环的能量调节的自动控制问题。
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。

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