1) NH_3/CO_2 cascade refrigeration
NH_3/CO_2复叠式制冷
1.
In order to investigate the performance of NH_3/CO_2 cascade refrigeration system,an experiment was conducted.
对 NH_3/CO_2复叠式制冷系统进行了性能实验,并对 NH_3/CO_2复叠系统、两级 NH_3系统以及单级 NH_3系统的性能进行了比较。
2.
In order to investigate the performance of NH_3/CO_2 cascade refrigeration system, an experiment was conducted.
对NH_3/CO_2复叠式制冷系统进行了性能实验,并对NH_3/CO_2复叠系统、两级NH_3系统以及单级NH_3系统的性能进行了比较。
3) cascade refrigeration
复叠式制冷
1.
Some methods are introduced to rebuild the normal cold storages into super-low temperature cold storages for full use of cascade refrigeration cycle with low production costs and energy expenditure.
针对我国冷库多、贮藏量大,但超低温冷库很少这一现状,介绍了在原有冷库的基础上,利用复叠式制冷方法将原有的部分冷库加装改造成超低温冷库,从而达到降低成本和节能的目的。
2.
To study the possibility of cascade refrigeration system using R744 running below R744 triple point temperature (216.
为了使R744在复叠式制冷系统中运行的最低温度突破三相点的限制,用R744与自然工质(如R170或R1150)混合组成二元混合物,使其突破R744的三相点温度,完全使用自然工质混合物替代R13,在复叠式制冷系统的低温环路中运行。
3.
In the traditional cascade refrigeration system for -80 癈 refrigeration applications, refrigerants used in the lower temperature stage are R13, R23, R503 and R508B.
针对-80℃温区复叠式制冷循环低温级的常用工质发展的现状,预测和发现了新系列(R170／R116／R23) 共沸/近共沸混合物以替代原有工质。
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) cascade refrigeration system
复叠式制冷系统
1.
Performance of binary mixture of CO_2/R170 as low temperature circuit refrigerant in cascade refrigeration system;
CO_2/R170混合物作为复叠式制冷系统低温环路制冷剂的性能
2.
Laboratory design with a cascade refrigeration system;
使用R13/R22复叠式制冷系统的试验室设计
3.
Experimental study on R744/R290 in low-temperature circuit of cascade refrigeration system
复叠式制冷系统低温环路制冷剂R744(CO_2)/R290的实验研究
补充资料：复叠
1.见"复迭"。
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