Energy and exergy analysis of LPG (liquefied petroleum gas) as a drop in replacement for R134a in domestic refrigerators

El-Morsi, Mohamed

doi:10.1016/j.energy.2015.04.035

Cited by 63 publications

(16 citation statements)

References 28 publications

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“…This mixture is stored as a liquid in pressurized cylinders at 0.61.2 MPa (Adolf et al, 2015). The percentage of propane and butane in LPG is different in winter and in summer, with a higher percentage of propane in winter (Price et al, 2004;El-Morsi 2015). Butane provides more energy than propane per volume by 12% when burned at temperatures above freezing.…”

Section: Literature Reviewmentioning

confidence: 99%

Characteristic of LPG Compositions in the Fuel Line during Discharging Process

Setiyo¹,

Soeparman²,

Hamidi³

et al. 2017

IJTech

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Research and development activities on Liquefied Petroleum Gas (LPG) vehicles have increased LPG engine performance to that of gasoline engines. LPG evaporation in the fuel system also has a potential cooling effect that can be taken advantage of. The results from previous studies, however, do not explain the level of fuel in the tank at the time of data collection. LPG is a mixture of several molecules which have different properties. This paper presents an investigation of LPG composition characteristics in the fuel line during the discharging process. Samples were taken periodically on the fuel line by special gas syringes. Afterwards, the samples were injected into the Gas Chromatography-Mass Spectrometry (GC-MS) device. This series of tests, which was conducted on lengthy LPG tanks, showed that the propane and butane 2-methyl molecules are unevenly dispersed during the discharging of the tank. However, this study found that a change in LPG composition during the discharging process does not have significant influence on the energy delivery and the potential cooling effect.

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Section: Literature Reviewmentioning

confidence: 99%

Characteristic of LPG Compositions in the Fuel Line during Discharging Process

Setiyo¹,

Soeparman²,

Hamidi³

et al. 2017

IJTech

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“…A great deal of research has been done to investigate the performance of compressor systems using hydrocarbons instead of traditional refrigerants. Energy and exergy analysis of a domestic refrigerator filled with R290, R600, and commercial LPG as an alternative to R134a was carried out by El-Morsi [2]. The results showed that the highest coefficient of performance (COP) and exergetic efficiency was obtained by R600a.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Nucleate Boiling of Flammable, Environmentally Friendly Refrigerants

Gil

Fijałkowska

2019

Energies

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This paper investigates the nucleate boiling process of dimethyl ether and selected hydrocarbons. The main goal of this study is to measure the heat transfer coefficients of RE170, R600a, and R601, and to compare them with R134a. The experiments were carried out for heat fluxes up to 70 kW/m 2 . Experimental results have shown a typical trend that the heat transfer coefficient of flammable refrigerants increases as the heat flux increases. Among the tested fluids, the highest values of heat transfer coefficient were obtained for RE170. Available correlations describing this coefficient showed a deviation of up to 93%, as compared to the data obtained. The new correlation was developed by regression analysis taking into account dimensionless variables affecting the boiling process.

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“…From that hypothetical investigation they reasoned that R134a, R152a, R32, HC290, HC1270, HC600 and HC600a can be utilized as an option in contrast to the above refrigerants. M El-Morsi et.al [8] performed a theoretical analysis of a VCR system using pure natural refrigerants as a substitute to HFC-134a and results revealed that LPG gives a lower COP and Isobutane gives a higher COP than that of HFC-134a by 11% and 5% respectively. M Rasti et.al.…”

Section: Introductionmentioning

confidence: 99%

“…Mass flow rate of a refrigerant (mr) is given by mr = RPM × Vsv×ρ1× ηvol/60 (8) where compressor speed is expressed as RPM, Vsv is swept volume of a compressor, refrigerant density at compressor entry can be designated as ρ1. Fig.…”

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confidence: 99%

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

Hasheer

Srinivas²

2019

Strojnícky Časopis - Journal of Mechanical Engineering

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Chlorofluorocarbons and hydro chlorofluorocarbons (HCFCs) are replaced by hydroflourocarbons (HFCs) which is not harmful to the ozone layer. However, few of HFCs have a relatively high global warming potential (GWP) and are subject to further examination due to growing concerns about global climate change. The goal now is to find the next generation of environmentally sustainable work fluids with an insignificant direct environmental impact in terms of ozone depletion and global warming potential. This document introduces the mixture of low-GWP refrigerants like R440A, R430A, R1234ze (E)/152a (50:50 by mass), R290/600a (40/60), R290/600(60/40), R290/600(50/50), ARM 42,ARM 42a and AC5 are used to replace R-134a in a domestic refrigeration system without doing any modifications to the system. The performance of the refrigerator was observed in terms of volumetric cooling capacity, blower discharge temperature, and coefficient of performance, refrigeration effect and energy consumption of a blower.

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Energy and exergy analysis of LPG (liquefied petroleum gas) as a drop in replacement for R134a in domestic refrigerators

Cited by 63 publications

References 28 publications

Characteristic of LPG Compositions in the Fuel Line during Discharging Process

Characteristic of LPG Compositions in the Fuel Line during Discharging Process

Experimental Study of Nucleate Boiling of Flammable, Environmentally Friendly Refrigerants

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

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