A performance comparison of vapour-compression refrigeration system using various alternative refrigerants

Dalkılıç, Ahmet Selim; Wongwises, Somchai

doi:10.1016/j.icheatmasstransfer.2010.07.006

Cited by 148 publications

(58 citation statements)

References 8 publications

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“…Results indicated that the cooling rate increased with the increase of mass percentage of R290 in refrigerant mixtures due to higher cooling capacity of R290 than other refrigerants. The nature of the graphs is similar as reported by Chao-Chieh Yu et al [17]. (Continuous Running Test).…”

Section: Resultssupporting

confidence: 84%

Experimental Evaluation of Refrigerant Mixtures as Substitutes for HFC134a

Paliwal¹

2017

IOSR JMCE

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Section: Resultssupporting

confidence: 84%

Experimental Evaluation of Refrigerant Mixtures as Substitutes for HFC134a

Paliwal¹

2017

IOSR JMCE

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“…In all cases, the blend refrigerants gave more refrigerating effect than R22. Alternative refrigerants including R290 mixture also exhibited better refrigerating effect than R22 in an experimental investigation performed by Dalkilic et al [39]. Refrigerating effect also increased with evaporator temperature in their research.…”

Section: Resultsmentioning

confidence: 80%

Performance and exergetic investigation of a domestic sp

Raiyan¹,

Ahamed²,

Rahman³

et al. 2017

Int. J. Automot. Mech. Eng.

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In this article, the mechanical performance and exergy of a one-ton split type air conditioning system by using the mixture of two different refrigerants of different proportions have been investigated. It has become necessary to find an alternative of Chlorodifluoromethane (R22) as it has high ODP (Ozone Depletion Potential) and GWP (Global Warming Potential). Propane (R290) has a lower ODP and GWP and in this project, it was considered with R22 for making different blends. Here, two different mixtures of R22 and R290 (respectively), were prepared and denoted as X6 and X7. After conducting a test run for several hours, evaporator temperature, condenser temperature, compressor suction and discharge pressure, and enthalpy at different points (obtained from REFPROP) were measured. By using experimentally obtained data, power consumption and Coefficient of Performance (COP) were calculated for different refrigerants. Different characteristic graphs were drawn establishing relation among various parameters. It was found that during the same observation period, the mixture X6 and X7 consumed less electric power than R22. Moreover, the COP was also found to be higher for X6 and X7 than that of R22. Finally, total exergy destruction in all components was calculated for different refrigerants and comparative analysis was made.

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“…To validate the MATLAB code, results are compared with the previously published data [7,17]. Dalkilic AS and Wongwises S has computed the thermodynamic analysis of simple saturation vapour compression system with R22 at Tk = 50 o C and Te=-10 o C whereas Baskaran A and Koshy Mathews P has computed the thermodynamic performance of standard vapour compression system with R134a at Tk = 50 o C and Te=-10 o C by considering degree of superheating and subcooling as 10 o C and 5 o C respectively.…”

Section: Analytical Validationmentioning

confidence: 99%

Analytical computation of thermodynamic performance parameters of actual vapour compression refrigeration system with R22, R32, R134a, R152a, R290 and R1270

2018

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Abstract. The present work focuses on analytical computation of thermodynamic performance of actual vapour compression refrigeration system by using six pure refrigerants. The refrigerants are namely R22, R32, R134a, R152a, R290 and R1270 respectively. A MATLAB code is developed to compute the thermodynamic performance parameters of actual vapour compression system such as refrigeration effect, compressor work, COP, power per ton of refrigeration, compressor discharge temperature and volumetric refrigeration capacity at condensing and evaporating temperatures of 54.4oC and 7.2oC respectively. Analytical results exhibited that COP of both R32 and R134a are 15.95% and 11.71% higher among the six investigated refrigerants. However R32 and R134a cannot be replaced directly into R22 system. This is due to their higher compressor discharge temperature and poor volumetric capacity respectively. The discharge temperature of both R1270 and R290 are lower than R22 by 20-26oC. Volumetric refrigeration capacity of R1270 (3197 kJ/m3) is very close to that of volumetric capacity of R22 (3251 kJ/m3). Both R1270 and R290 shows good miscibility with R22 mineral oil. Overall R1270 would be a suitable ecofriendly refrigerant to replace R22 from the stand point of ODP, GWP, volumetric capacity, discharge temperature and miscibility with mineral oil although its COP is lower.

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A performance comparison of vapour-compression refrigeration system using various alternative refrigerants

Cited by 148 publications

References 8 publications

Experimental Evaluation of Refrigerant Mixtures as Substitutes for HFC134a

Experimental Evaluation of Refrigerant Mixtures as Substitutes for HFC134a

Performance and exergetic investigation of a domestic sp

Analytical computation of thermodynamic performance parameters of actual vapour compression refrigeration system with R22, R32, R134a, R152a, R290 and R1270

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