Results 41 to 50 of about 6,765 (186)
Thermal design and CFD simulation of an internal heat exchanger with R1234yf as an alternate refrige
Journal of Thermal EngineeringThe most widely utilized refrigerant in car air conditioners today is still R134a, particularly in developing nations, but its global warming potential is very high (1430).
B. K. PATEL
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Journal of Engineering, 2019 Reducing global warming potential (GWP) of refrigerants is needed to the decrease of ozone-depleting of refrigeration systems leakages. Refrigerant R1234yf is now used to substitute R134a inside mobile air conditioning systems.
Rafah Hussain, Issam Mohammed ali
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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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Lubrication Science, Volume 38, Issue 5, Page 301-326, August 2026.ABSTRACT Porous gas bearings (PGBs) enable high‐speed, oil‐free operation in modern rotating machinery. This study develops a coupled thermo‐hydrodynamic (THD) model for a cylindrical porous gas bearing lubricated with four working fluids—air, R‐134a, helium and hydrogen.
S. Bechiri, B. Bouchehit, B. Bou‐Saïd
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Simulation study on performance of a dual-source hybrid heat pump unit with alternative refrigerants
Energy and Built Environment, 2020 To solve the problems of single heat source heat pump systems in severe cold regions, a dual-source hybrid heat pump unit (DSHHPU) is proposed. The mathematical models of the DSHHPU when charging R134a or its alternative refrigerants R32, R290 and R600a ...
Chenguang Bai +5 more
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Advanced Science, Volume 13, Issue 41, 22 July 2026.LiF‐rich solid electrolyte interphases in lithium metal batteries are redefined as controllable nanostructured building blocks rather than homogeneous protective films. This review shows how LiF distribution, grain boundaries, and heterogeneous interfaces govern electron blocking and Li ion transport, and compares fluorinated electrolytes, artificial ...
Gwangsik Kim, JinHyeok Cha
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Development of Alternative Binary Mixtures to Replace HFC 134a in Domestic Refrigerator
Chemical Engineering Transactions, 2018 Thermodynamic and volumetric properties of alternate Refrigerant mixtures to replace R134a have been predicted using SRK EOS and modified PSRK mixing rule using UNIFAC method.
Parashurama Siddegowda +2 more
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Environmental Progress &Sustainable Energy, Volume 45, Issue 4, July/August 2026.Abstract Brazed plate heat exchanger (BPHE) was analyzed using computational fluid dynamics (CFD) simulations by ANSYS Fluent to investigate the chevron‐patterned plates. The influence of geometric parameters, including corrugation pitch, depth, and angle was analyzed.
J. S. Huang, K. B. Then, X. W. Wang
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Naše More (Dubrovnik), 2018 Halocarbon refrigerants have been scheduled for total phase out because they contributed significantly to the two major global environmental problems - ozone layer depletion and global warming.In this study, the performances of the environmentally ...
F. O. Borokinni +2 more
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Energy Science &Engineering, Volume 14, Issue 5, Page 2644-2666, May 2026.This review highlights how nano oils and eco‐friendly nano refrigerants enhance energy‐efficient refrigeration by improving thermal conductivity, lubrication, and system performance. The integration of rheological and tribological testing confirms reduced compressor work, better heat transfer, and higher COP using sustainable, low‐GWP refrigerants for ...
Mohammed Dilawar +7 more
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