Thermodynamic Analysis of Low GWP Refrigerant Mixtures in a Refrigerator as Replacement to R-134A

Hasheer, Sk Mohammad; Srinivas, K.

doi:10.2478/scjme-2019-0049

Cited by 3 publications

(1 citation statement)

References 15 publications

(13 reference statements)

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“…Kapilan et.al conducted a computational fluid dynamic analysis to study the refrigerator and air-conditioning evaporative cooling system [15]. SK Mohammad Hasheer and Kolla Srinivas (2019) performed theoretical analysis of different refrigerant mixtures as stand-in to R-134 in refrigerator and from that analysis they concluded that R152A/ HFO-1234ze (E) (by mass 50:50) can be utilized as an immediate trade for HFC-134a without rolling out any improvements to the compressor [16].…”

Section: Introductionmentioning

confidence: 99%

Energy Analysis of HFC-152a, HFO-1234yf and HFC/HFO Mixtures as a Direct Substitute to HFC-134a in a Domestic Refrigerator

Hasheer

Srinivas²,

Bala³

2021

Strojnícky Časopis - Journal of Mechanical Engineering

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The Kyoto protocol emphasized the need of replacement of HFC refrigerant due to their high GWP values that causes pollution in the environment. So in this paper the refrigerants R1234yf, R152a and HFOs/HFCs mixtures of R134a/R152a/R1234yf such as ARM42 (in the ratio of 8.5/14 /77.5 by mass), ARM42a (in the ratio of 7/11/82 by mass) with a view of replacement of the refrigerant HFC-134a in a domestic refrigerator were analyzed theoretically. Volumetric cooling capacity, compressor discharge temperature, coefficient of performance, compressor energy consumption and refrigeration capacity are the main parameters to estimate the performance of the refrigerator. The results are revealed that HFC-152a had gave a superior performance as compared to HFC-134a in terms of COP and equal cooling and volumetric cooling capacities. However, the refrigerant HFC-152a was flammable and runs with high compressor outlet temperature which may restrict its usage. The HFO refrigerant R1234yf showed an almost equal volumetric cooling capacity, compressor energy consumption, refrigerating effect and COP when compared with HFC-134a. Among the refrigerants ARM42 and ARM42a, the refrigerant ARM42a was selected as a good alternative for HFC-134a because the Volumetric cooling capacity and COP of ARM42a were almost equal to HFC-134a. Therefore ARM42a had better choice of direct substitute to HFC-134a in a domestic refrigerator when the corresponding safety requirements are adopted. So on overall comparison of every property of refrigerants we can conclude that R1234yf can be treated as best alternative to HFC-134a in a domestic refrigerator.

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Section: Introductionmentioning

confidence: 99%

Energy Analysis of HFC-152a, HFO-1234yf and HFC/HFO Mixtures as a Direct Substitute to HFC-134a in a Domestic Refrigerator

Hasheer

Srinivas²,

Bala³

2021

Strojnícky Časopis - Journal of Mechanical Engineering

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Thermodynamics studies on VCRS using refrigerant blends of R290, R600A, and R1234ZE

Ravi,

Adhimoulame

2024

Multiscale and Multidiscip. Model. Exp. and Des.

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Theoretical exploration of low GWP refrigerant mixtures as replacement to HFC-134A in a vapour compression refrigeration system

HASHEER SK,

KOLLA,

KONDALA RAO

et al. 2023

Journal of Thermal Engineering

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Hydro-fluorocarbons (HFCs) that are not harmful to ozone layer and are used in many appli-cations, including as refrigerants, aerosols, solvents and blowing agents for insulating foams replace chlorofluorocarbons and hydro chlorofluorocarbons (HCFCs). However, some HFCs have a high GWP, which stands for “Global Warming Potential(GWP).” Because of the grow-ing concern over global climate change, researchers are paying closer attention for alternatives to these HFCs. The main focus of this work was on the theoretical analysis of the refrigerant mixtures namely AC5, R430A, and R440A as direct replacements for HFC-134a in a refriger-ator. The performance of the refrigerator may be enhanced using heat exchanger. The com-pressor discharge temperature, COP, VCC, refrigerant mass flow rate, power consumption of a compressor and pressure ratio were used to measure the performance of a home refrigerator. The typical COP of R440A and R430A was about 2.5% and 1.4% higher than that of HFC-134, while the average COP of AC5 was 6.1% lesser than that of HFC-134a. R430A almost has the same VCC (Volumetric Cooling Capacity) as HFC-134a. The results also show that HFC-134a uses more power than AC5, R440A, and R430A. R440A and AC5 have higher compressor outlet temperatures than HFC-134a, which affects the life span of the compressor. In com-parison with all the above refrigerants, R430A gives the best overall performance and used as replacement to HFC-134a in a VCR.

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Thermodynamic Analysis of Low GWP Refrigerant Mixtures in a Refrigerator as Replacement to R-134A

Cited by 3 publications

References 15 publications

Energy Analysis of HFC-152a, HFO-1234yf and HFC/HFO Mixtures as a Direct Substitute to HFC-134a in a Domestic Refrigerator

Energy Analysis of HFC-152a, HFO-1234yf and HFC/HFO Mixtures as a Direct Substitute to HFC-134a in a Domestic Refrigerator

Thermodynamics studies on VCRS using refrigerant blends of R290, R600A, and R1234ZE

Theoretical exploration of low GWP refrigerant mixtures as replacement to HFC-134A in a vapour compression refrigeration system

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