1.On the basis of analyzing the history, current situation and international and domestic tendency ofalternativerefrigerants, especialalternativefor HCF.本文在分析制冷剂替代(特别是HCFCs替代)的历史、现状和国内外形势基础上,论证了在小型热泵空调上以R290替代R22的可行性,其中包括物化性质、理论制冷循环、经济性...
Optimum Refrigerant Charge of Refrigerator Working with Alternative Refrigerants for R12 (R134a, R600a and R290)Ali Al Sayyab
2.LXR1 and LXR2--Refrigerant alternatives for R12 in centrifugal water chillers;R12离心冷水机组制冷剂替代物——LXR1和LXR2 3.According to special requirements of refrigerants used in centrifugal chillers, a new ternary mixture alternative, LXR2a, was proposed.根据离心式冷水机组对替代物筛选的要求和...
coefficient of relative power (COP) without any modifications torncompressors designed for R-12 refrigerant and using mineral oils, and without majorrnmodifications to R-12 refrigeration equipment is demonstrated as compared to otherrnrefrigerants currently in use (R-134a, R-600a, CM-1 and so on...
This paper analyses the thermodynamics properties of major CFCs alternative refrigerants,present the modifications with the R12 refrigerator for compressors when it is converted to CFCs alternative refrigerants,and compare the advantage & disadvantage and difference & commonness of various refrigerants. 本文...
Most of the previous research focused on alternative refrigerants to R22 at low and medium condensing temperatures. Karagoz et al. [3] studied the possibilities of using R134a and some binary mixtures of R22/R134a as alternative refrigerants to R22 for a vapor compression heat pumps. The experim...
R12 alternativesProduction and use of R12 and other chlorofluorocarbon refrigerants will be prohibited completely all over the world in the year 2010 due to their harmful effects on the earth's protective ozone layer. Therefore, in this study, the exergetic performance of a domestic refrigerator ...
This paper provides a comparison of the operating performance of three alternative refrigerants for use in a vapour compression refrigeration cycle. The refrigeration capacity and COP of R401A, R290 and R134A were compared with those of R12 when used in a propriety vapour compression refrigeration ...
1)alternative refrigerants for R12R12替代工质 2)alternatives[英][?:l't?:n?tiv][美][?l't?n?t?v]替代工质 1.Based on sustainable development,CO_2 emerges as one of the most likelyalternativesto the synthetic fluids in heat pump water heaters.基于可持续发展观,CO_2成为热泵热水器系统最有潜...
(R12-R502-R500) on the earth's ecosystem wide research activities are in progress to define the proper environmental friendly refrigerants. In this article we present, from a theoretical as well as from an experimental point of view, a comparison of the R22, R404A and R290 (propane) with ...