Testing of the mixing refrigerants HFC152a/HFC125 in domestic refrigerator

He, Maogang; Li, Tiechen; Liu, Zhigang; Zhang, Ying

doi:10.1016/j.applthermaleng.2004.06.003

Cited by 26 publications

(13 citation statements)

References 4 publications

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“…Gang et al [37] have studied the performance (both theoretically and experimentally) of a R12-based domestic refrigerator working with a new HFC mixture composed of R152a and R125 at different mass percentages (80:20, 85:15, 90:10, by mass). It was reported that the discharge temperature of the mixtures was higher than that of R12.…”

Section: Domestic Refrigerationmentioning

confidence: 99%

A review on recent developments in new refrigerant mixtures for vapour compression-based refrigeration, air-conditioning and heat pump units

Mohanraj

Muraleedharan

Jayaraj

2010

Int. J. Energy Res.

133

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SUMMARYIn the present paper, an attempt has been made to review the performance of new refrigerant mixtures employed in vapour compression-based refrigeration, air-conditioning and heat pump units. The studies reported with refrigerant mixtures are categorized into six groups as follows: (i) hydrocarbon (HC), (ii) hydroflurocarbons (HFC), (iii) HFC/HC, (iv) hydrochloroflurocarbons (HCFC), (v) carbon dioxide (R744) and (vi) ammonia (R717). This paper explores the studies reported with new refrigerant mixtures in domestic refrigerators, commercial refrigeration systems, air conditioners, heat pumps, chillers and in automobile air conditioners. In addition, the technical difficulties faced with new refrigerant mixtures, further research needs in this field and future refrigerant options for new upcoming systems have been discussed in detail. This paper concludes that HC based refrigerant mixtures are identified as a long-term alternative to phase out the existing halogenated refrigerants in the vapour compression-based systems.

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Section: Domestic Refrigerationmentioning

confidence: 99%

A review on recent developments in new refrigerant mixtures for vapour compression-based refrigeration, air-conditioning and heat pump units

Mohanraj

Muraleedharan

Jayaraj

2010

Int. J. Energy Res.

133

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show abstract

“…In vapour-compression refrigerators, the internal temperature control inside the insulated compartment is generally inaccurate due to the multitude of start and stop cycles made by the compressor, leading to a temperature variation bigger than 8 C, with a negative effect on the quality of the food and on the conservation of the perishable food [50,51]. This represents a drawback for these refrigerators compared with the thermoelectric refrigerators in which there are no start and stop cycles and the supply voltage gradually increases.…”

Section: Optimization Of the Internal Temperature Controller Of The Imentioning

confidence: 99%

Thermoelectric Refrigeration Principles

Enescu¹

2018

Bringing Thermoelectricity Into Reality

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This chapter recalls the general principles and main formulations useful in the study of thermoelectric coolers. Starting from the general heat diffusion equation, analytical expressions are introduced for the determination of cooling capacity and rate of heat rejection in steady-state conditions. When dealing with the whole refrigeration system, the limits of the steady-state analysis of the individual thermoelectric elements are pointed out, indicating the need for transient analysis supported by experimental evaluations. Then, the energy indicators are illustrated by considering the electrical power consumption, the thermal performance described by the dimensionless figure of merit, as well as the coefficient of performance. Furthermore, the main methods to enhance the thermoelectric cooler performance in refrigeration units are highlighted, with reference to highperformance materials, design aspects and temperature control systems. Finally, indications are reported on some applications of various thermoelectric refrigeration solutions, considering the technical aspects of the performance of these systems.

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“…Though the global warming potential (GWP) of some hydrofluorocarbon (HFC) refrigerants is relatively high, HFC refrigerants and their mixtures such as R-410A and R-407C have been accepted as one of the alternative refrigerants in many countries. Recently, a HFC-125 + HFC-152a mixture was used in a domestic refrigerator, and the experimental results showed that HFC-125 + HFC-152a can be used as a drop-in substitute to CFC-12, and the optimum composition is about 15%/85% in mass percent [1]. In addition, HFC-125 + HFC-152a + HFC-32 with a mass percent composition of 18%/48%/34%, can be an alternative for HCFC-22 and could be a potential refrigerant for domestic air-conditioners [2].…”

Section: Introductionmentioning

confidence: 98%

Surface tension of pentafluoroethane+1,1-difluoroethane from (243 to 328)K

Zhao

2009

Fluid Phase Equilibria

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Testing of the mixing refrigerants HFC152a/HFC125 in domestic refrigerator

Cited by 26 publications

References 4 publications

A review on recent developments in new refrigerant mixtures for vapour compression-based refrigeration, air-conditioning and heat pump units

A review on recent developments in new refrigerant mixtures for vapour compression-based refrigeration, air-conditioning and heat pump units

Thermoelectric Refrigeration Principles

Surface tension of pentafluoroethane+1,1-difluoroethane from (243 to 328)K

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