Analytical computation of thermodynamic performance parameters of actual vapour compression refrigeration system with R22, R32, R134a, R152a, R290 and R1270 [PDF]
MATEC Web of Conferences, 2018 The present work focuses on analytical computation of thermodynamic performance of actual vapour compression refrigeration system by using six pure refrigerants. The refrigerants are namely R22, R32, R134a, R152a, R290 and R1270 respectively.
Vali Shaik Sharmas +2 more
doaj +5 more sources
Comparative analysis of evaporation of isobutane (R600a) and propylene (R1270) in compact smooth and microfinned tubes [PDF]
Applied Thermal Engineering, 2021 Abstract Data base for evaporation of flowing isobutane and propylene in compact internally enhanced surfaces is extended by experimental tests in two microfinned tubes and a smooth tube. The outer diameter for all of the test tubes was 5 mm. Heat transfer coefficient and pressure drop were compared for both fluids in all tubes in comparable working ...
Ehsan Allymehr +3 more
openaire +3 more sources
Energy impact evaluation of different low-GWP alternatives to replace R134a in a beverage cooler. Experimental analysis and optimization for the pure refrigerants R152a, R1234yf, R290, R1270, R600a and R744 [PDF]
Energy Conversion and Management, 2022 Due to the entry into force in 2014 of the European F-Gas Regulation n° 517/2014 and the subsequent Kigali amendment, the phase-out of the medium and high-GWP refrigerants has speeded up in all refrigeration fields.
Daniel Calleja-Anta +2 more
exaly +3 more sources
Performance Analysis of the R290 Variable Geometry Gas Ejector Application for Other Refrigerants [PDF]
Chemical Engineering Transactions, 2023 Ejector refrigeration systems are promising alternative to standard vapour compression refrigeration systems. They can be driven with low-grade heat or solar systems, which make them even more renewable solution aligned with global energy transition.
Rafal Fingas +2 more
doaj +3 more sources
Energy, Exergy, and Environmental (3E) Analysis of Hydrocarbons as Low GWP Alternatives to R134a in Vapor Compression Refrigeration Configurations [PDF]
Applied Sciences, 2021 The phase-down of hydrofluorocarbons and substitution with low global warming potential values are consequences of the awareness about the environmental impacts of greenhouse gases.
Morteza Ghanbarpour +3 more
doaj +3 more sources
Energy impact of the Internal Heat Exchanger in a horizontal freezing cabinet. Experimental evaluation with the R404A low-GWP alternatives R454C, R455A, R468A, R290 and R1270 [PDF]
International Journal of Refrigeration, 2022 This work analyses the influence of the Internal Heat Exchan ger (IHX) on the energy performance of a vapor compression cycle associated with a freezing cabinet using different R404A low-GWP alternatives.
Ramón Cabello López +2 more
exaly +3 more sources
Comparative thermodynamic analyses of Rankine cycles using different working fluids for LNG cold energy recovery [PDF]
Case Studies in Thermal EngineeringThis study investigates the impact of condensation temperature on the thermodynamics of Rankine cycles for LNG cold energy recovery using seawater as heat source.
Qiang Liu, Jian Song, Yuanyuan Duan
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Experimental evaluation of the CO2-based mixtures CO2/R32, CO2/R1234yf and CO2/R1270 in a transcritical refrigerating plant considering the effect of the internal heat exchanger (IHX) [PDF]
Applied Thermal EngineeringUsing CO2 mixtures results in a simple but effective solution to increase the critical temperature of CO2 and reduce its working pressures. However, the overall effect of these mixtures on the global performance of the cycle has yet to be explored ...
Daniel Sánchez García-Vacas +2 more
exaly +3 more sources
Theoretical Study on Novel Refrigerant Mixture R1270/R152a/R13I1 [PDF]
Zhileng xuebao, 2010 A new refrigerant mixture,R1270/R152a/R13I1,is proposed as a substitute for R22 in this paper.The thermophysical properties of this environment-friendly mixture and its refrigeration system performance are theoretically analyzed with the software Refprop
冯永斌, 晏刚, 钱文波
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Micro and Nano Letters, 2018 In this work, turbulent convective heat transfer of propylene (R1270)‐based nanorefrigerant in a circular tube with a uniform heat flux of 20 kW/m 2 is numerically investigated using different types of nanoparticles namely Al 2 O 3
Mohammed K A Zohud, Ahmed Ouadha
exaly +2 more sources