Computational and experimental investigation of low ODP and low GWP HCFC-123 and HC-290 refrigerant mixture alternate to CFC-12

Kumar, K. Senthil; Rajagopal, K. R.

doi:10.1016/j.enconman.2007.05.021

Cited by 39 publications

(14 citation statements)

References 26 publications

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“…It was developed and is maintained by the National Institute of Standards and Technology and is currently in its ninth edition. It uses several equations of state to correlate 33 single component refrigerants and 29 predefined mixtures, along with the ability to construct virtually any desired mixture of up to five components [19]. This software was used in this work to compute the properties of investigated refrigerants.…”

Section: Methodsmentioning

confidence: 99%

Computational analysis of the performance of ozone-friendly R22 alternative refrigerants in vapour compression air-conditioning systems

Bolaji¹,

Huan²

2012

Environ. Protect. Eng.

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Performance of two ozone-friendly refrigerants (R410A and R419A) was investigated theoretically using computational thermodynamic analysis. The results obtained showed that the performance of R410A was very close to that of R22 in all the operating conditions. Both R22 and R410A performed better than R419A in terms of their COP and refrigerating effect. Compared with R22, the average COP and refrigerating effect of R419A are lower by 13.78 and 33.96%, respectively. Generally, R410A refrigerant has approximately the same performance with R22, therefore, it is considered as a good drop-in substitute for R22 in vapour compression airconditioning system.

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Section: Methodsmentioning

confidence: 99%

Computational analysis of the performance of ozone-friendly R22 alternative refrigerants in vapour compression air-conditioning systems

Bolaji¹,

Huan²

2012

Environ. Protect. Eng.

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“…They also reported that heated suction accumulator contributes in evaporating the more volatile component of refrigerant mixture, which results in increasing the mixture thermal capacity. Kumar and Rajagopal [85] investigated the performance of R12 and the mixture composed of R123 and R290 with different mass percentages. It has been reported that the COP of mixture (R123/R290, in the ratio of 70:30, by mass) had better COP than that of R12.…”

Section: Hcfc-based Mixturesmentioning

confidence: 99%

“…In this section, the performance of the new refrigerant mixtures used in different applications, such as, domestic refrigeration, commercial refrigeration, air-conditioning, heat pump, chiller, automobile air-conditioning and other special purpose applications, is discussed. The refrigerant mixtures are grouped as HC mixtures , HFC mixtures , HFC/HC mixtures [67][68][69][70][71][72][73][74][75][76][77][78][79][80][81][82][83], HCFC mixtures [84][85][86][87], R744 mixtures [88][89][90][91] and R717 mixtures [92,93]. In addition, environmental impact assessment, cost analysis associated with retrofitting, prediction of properties of refrigerant mixtures, lubricants recommended for new refrigerant mixtures are discussed.…”

Section: Experimental and Theoretical Studies With Refrigerant Mixturesmentioning

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.

131

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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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“…Isobutane and propane belong to the group of so called saturated hydrocarbons. R600a and R290 do not exhibit a harmful impact on ozone layer and have a negligible global warming potential (GWP for R600a is equal 4 and for R290 is equal 20, respectively [4]. The known disadvantage of R600a and R290 is their flammability, however they are permitted for use in devices which comply with the specifications outlined in the standard EN/IEC 60335-2-24.…”

Section: Introductionmentioning

confidence: 98%

Prediction of flow boiling heat transfer data for R134a, R600a and R290 in minichannels

Mikielewicz¹,

Jakubowska²

2014

Archives of Thermodynamics

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In the paper presented is the analysis of the results of calculations using a model to predict flow boiling of refrigerants such as R134a, R600a and R290. The latter two fluids were not used in the development of the model semiempirical correction. For that reason the model was verified with present experimental data. The experimental research was conducted for a full range of quality variation and a relatively wide range of mass velocity. The aim of the present study was also to test the sensitivity of developed model to a selection of the model of two-phase flow multiplier and the nonadiabatic effects. For that purpose two models have been analysed namely the one due to Müller-Steinhagen and Heck, and Friedel. In addition, the work shows the importance of taking surface tension into account in the calculation of the flow structure.

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Computational and experimental investigation of low ODP and low GWP HCFC-123 and HC-290 refrigerant mixture alternate to CFC-12

Cited by 39 publications

References 26 publications

Computational analysis of the performance of ozone-friendly R22 alternative refrigerants in vapour compression air-conditioning systems

Computational analysis of the performance of ozone-friendly R22 alternative refrigerants in vapour compression air-conditioning systems

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

Prediction of flow boiling heat transfer data for R134a, R600a and R290 in minichannels

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