Second law assessment of di methyl ether and its mixtures in domestic refrigeration system

Baskaran, A.; Manikandan, N.; Nagaprasad, N.; Ramaswamy, Krishnaraj

doi:10.1038/s41598-023-27600-9

Cited by 4 publications

(3 citation statements)

References 40 publications

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“…Theoretical study by Baskaran et al [7] showed that DME refrigerant has advantages compared to R152a in replacing R134a. Thermodynamic studies on DME mixed refrigerants (R429A, R435A, and R 510A) also show an increase in the coefficient of performance (COP) and exergy efficiency compared to R134a refrigerant [8].…”

Section: Introductionmentioning

confidence: 99%

Performance comparison of DME and R134a refrigerants in a room air conditioner: Effect of subcool and superheat

Setyawan,

Mitrakusuma,

Simbolon

2024

E3S Web of Conf.

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The demand for environmentally friendly refrigerants arises to anticipate two global environmental issues: global warming and climate change. The use of environmentally friendly refrigerants is one of the efforts to address these issues. This study aims to investigate the possibility of the use of dimethyl ether (DME) for substituting R134a that has been widely used worldwide. The simulation reveals that both subcool and superheat affect the performance of both refrigerants. The cooling capacity of R134a system increases with the increase of subcool and superheat. Meanwhile, even though the cooling capacity of DME increases with the increase of subcool, it decreases with the increase of superheat. For subcool 0C, DME has a coefficient of performance (COP) 4.8% higher than that of R134a although the cooling capacity is 4.5% lower. When the subcool is set at 8C, the cooling capacity of DME is 6.5% lower than R134a but the COP is 2.6% higher. Another important finding in this study is that the best performance of DME over R134a is obtained at low subcool and low superheat.

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Section: Introductionmentioning

confidence: 99%

Performance comparison of DME and R134a refrigerants in a room air conditioner: Effect of subcool and superheat

Setyawan,

Mitrakusuma,

Simbolon

2024

E3S Web of Conf.

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“…All nanolubricants based on TiO 2 have been observed to reduce average power consumption. Baskaran et al [16][17][18][19][20][21][22][23][24][25][26][27] evaluated the performance of a vapour compression refrigeration device using a variety of different refrigerants (including refrigerant mixtures) and nanorefrigerants, and their findings were compared to those obtained by using R134a as a potential alternative replacement. An investigative test rig is indigenously created and manufactured to conduct the examinations.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the Performance of Domestic Refrigerator with Zirconium Oxide‐R134a Nanorefrigerant

Baskaran¹,

Manikandan²,

Jule³

et al. 2022

Journal of Nanomaterials

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This study investigates the performance of nanorefrigerants (R134a-ZrO2) in a domestic refrigerator at a concentration of 0.2 g/l without changing the components. Nanoparticles of ZrO2 of 0.2 g/L concentration with particle size 1-10 nm and 140 g of R134a have been charged, and investigations were carried out. Energy consumption and pull-down tests were conducted to investigate the performance of the refrigerator. The performance parameters like refrigeration capacity, compressor power, discharge temperature, coefficient of performance, and energy consumption were investigated for the nanorefrigerant (R134a-ZrO2), and the results were compared with base refrigerant R134a. The pull downtime, energy consumption, and discharge temperature are reduced with increased COP and compressor power when the system is operated with R134a-ZrO2 nanorefrigerant. Also, the thermophysical properties of the nanorefrigerant (R134a-ZrO2) are calculated and analyzed for the various volume fraction of nanoparticles.

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“…DME merupakan salah satu senyawa hidrokarbon yang ramah lingkungan dengan nilai ODP sebesar nol dan nilai GWP yang sangat kecil. DME memiliki sifat yang mirip denggan R134a sehingga dapat menjadi refrigeran alternatif pengganti R134a (Baskaran, Manikandan, & Sureshkumar, 2018).…”

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UJI KINERJA FREEZER MENGGUNAKAN DIMETHYL ETHER SEBAGAI REFRIGERAN PENGGANTI R134a

Mawaddati Sofwah Utami,

Mitrakusuma,

Simbolon

et al. 2023

JPTV

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R134a is widely used as a refrigerant in refrigeration systems, but this refrigerant has an impact on increasing global warming. This impact can be reduced by using dimethyl ether as an alternative refrigerant to replace R134a. In this research, the performance of dimethyl ether was tested as a substitute refrigerant for R134a in refrigeration system applications in the form of freezers. Tests were carried out by comparing the performance of the freezer when using refrigerant R134a and using dimethyl ether refrigerant. The use of dimethyl ether in the test was varied based on mass, namely 60 grams, 70 grams and 80 grams, or in percentages as much as 30%, 46.7% and 53.3% of the total mass of R134a. The results of this test indicate that the COP value for freezer performance is higher when using dimethyl ether than when using R134a, the efficiency is higher than refrigerant R134a, and the compressor power is lower than R134a. Testing for variations in the mass of dimethyl ether that approached the condition of R134a was at a mass of 70 grams, so that the amount of refrigerant filled with dimethyl ether as a substitute for R134a was reduced to 46,7% of the amount of R134a.

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Second law assessment of di methyl ether and its mixtures in domestic refrigeration system

Cited by 4 publications

References 40 publications

Performance comparison of DME and R134a refrigerants in a room air conditioner: Effect of subcool and superheat

Performance comparison of DME and R134a refrigerants in a room air conditioner: Effect of subcool and superheat

Investigation on the Performance of Domestic Refrigerator with Zirconium Oxide‐R134a Nanorefrigerant

UJI KINERJA FREEZER MENGGUNAKAN DIMETHYL ETHER SEBAGAI REFRIGERAN PENGGANTI R134a

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