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FILM –WISE CONDENSATION OF R1234yf AND R134a REFRIGERANTS ON FINNED TUBE WITH 32 FINS PER INCH
Wasit Journal of Engineering Sciences, 2022 Researchers have been motivating by the global warming challenge to develop alternatives substances to compounds that contribute to this problem. The refrigerant R134a (HFC134a) has been identified as one of the most environmentally damaging gases. As a
Jasim Khalid, Alaa R. Al-Badry
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Advances in Mechanical Engineering, 2016 In this article, R1234ze(E), R152a, and three mixtures M1, M2, and M3 composed of R152a and R1234ze(E) (in the ratio of 60:40, 50:50, and 40:60, by mass, respectively) as drop-in replacements of R134a in vapor compression system were theoretically ...
Zhaofeng Meng +3 more
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Experimental and Theoretical Investigation of Propane/Butane and Propane/Isobutane Mixtures as an Alternative to R134a in a Domestic Refrigerator [PDF]
Engineering and Technology Journal, 2014 In the present work, theoretical and experimental investigation have been carried out with two hydrocarbon refrigerant mixtures as a possible alternatives to R134a. Theoretical performance of an ideal vapor compression refrigeration cycle using R290/R600
Wahid S. Mohammad, Assad Oda Jassim
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Experimental study on transcritical Rankine cycle (TRC) using CO2/R134a mixtures with various composition ratios for waste heat recovery from diesel engines [PDF]
, 2020 A carbon dioxide (CO2) based mixture was investigated as a promising solution to improve system performance and expand the condensation temperature range of a CO2 transcritical Rankine cycle (C-TRC).
Feng, W +5 more
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Saturated Critical Heat Flux in a Multi-Microchannel Heat Sink Fed by a Split Flow System [PDF]
, 2010 An extensive experimental campaign has been carried out for the measurement of saturated critical heat flux in a multi-microchannel copper heat sink. The heat sink was formed by 29 parallel channels that were 199 μm wide and 756 μm deep.
D. Toto +3 more
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Flow boiling in a 1.1mm tube with R134a: Experimental results and comparison with model [PDF]
, 2007 A detailed comparison of the three-zone evaporation model, proposed by Thome et al. (2004), with experimental heat transfer results of two stainless steel tubes of internal diameter 4.26 mm and 2.01 mm using R134a fluid was presented by Shiferaw et al ...
Karayiannis, TG +2 more
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Ain Shams Engineering Journal, 2018 Due to the European Communities motor vehicle directive (2006) refrigerants with a GWP higher than 150 are not allowed from January 1, 2017 in new passenger cars. Thus, a replacement for R134a is needed.
Gaurav, Raj Kumar
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Energy Reports, 2020 Vapour compression refrigerator systems working with R134a are associated with high energy demand and environmental problems and refrigerator consumers’ prioritise energy consumption in choosing their choice of refrigerator systems.
T.O Babarinde, S.A Akinlabi, D.M Madyira
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Investigation of Working Fluid Performance through a Centrifugal Compression System
Applied Mechanics, 2022 Commonly, researchers have investigated many factors that impact the performance of air conditioning and refrigeration systems, such as varied cooling configurations, operating conditions and optimization of specific system components.
James Bull +2 more
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European Mechanical ScienceThe increasing environmental disasters in recent years are caused by the release of artificial substances into the environment. The majority of artificial-containing emissions originate from petrochemical products.
Alpaslan Alkan
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