Results 91 to 100 of about 1,757 (201)
Thermodynamic Analysis of Cascade Refrigeration System Using R12-R13, R290-R23 and R404A-R23
, 2014 The Montreal protocol and Kyoto protocol underlined the need of substitution of CFC’s and HCFC’s due to their adverse impact on atmospheric ozone layer which protects earth from U.V rays.
P. R. Tailor, A. D. Parekh
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Leakage Research of Split-type Air-conditioner using R290 as Refrigerant
Zhileng xuebao, 2013 The ozone depletion potential (ODP) and global warming potential (GWP) of HCFCs and HFCs are higher than hydrocarbons (HCs). R290 is perfect in environmental protection and energy saving performance.
张网 +4 more
doaj
Performance of heat pumps charged with R170/R290 mixture
In this study, thermodynamic performance of R170/R290 mixture is measured on a heat pump bench tester in an attempt to substitute R22. The bench tester is equipped with a commercial hermetic rotary compressor providing a nominal capacity of 3.5Â kW.
Park, Ki-Jung, Jung, Dongsoo
core
Zhileng xuebao, 2018 R290 has been considered for use in air-conditioning systems as a low global warming potential (GWP) refrigerant. This paper describes the tribological characteristic of the vane-piston tribopair in a R290 rotary compressor. For the purpose of simulating
Chen Zhenhua, Li Gaimin, Wu Jianhua
doaj
Assessing the decarbonization potential of new generation R290 high-temperature heat pumps for apartment buildings [PDF]
Electricity driven heat pumps, especially the air-to-water ones, represent a key technology for the decarbonization of existing residential buildings. In particular, new R290 (propane) heat pumps represent a valuable solution for substituting existing ...
Ferrara, Maria +3 more
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Limiting Performance of the Ejector Refrigeration Cycle with Pure Working Fluids. [PDF]
Entropy (Basel), 2023 Fu J, Liu Z, Yang X, Jin S, Ye J.
europepmc +1 more source
Case Studies in Thermal EngineeringThe present study aims to evaluate the process of drop-in of R22 in split type air conditioning with refrigerant fluids R290, R454C, and R465A. A mathematical model was developed to do an energetic, economic and environmental analysis using different ...
Carlos H.M. Braga +4 more
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Operation performance of an ultralow-temperature cascade refrigeration freezer with environmentally friendly refrigerants R290-R170. [PDF]
Environ Sci Pollut Res Int, 2023 Tan H, Xu L, Yang L, Bai M, Liu Z.
europepmc +1 more source
, 2011 A natural and environment friendly refrigerant propylene and propane are proposed as the substitute of R22 in air conditioner. The experiments were respectively conducted on an existing enthalpy potential lab.
He Li, Ling Xi, Jian Bo Chen
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Performances of Transcritical Power Cycles with CO2-Based Mixtures for the Waste Heat Recovery of ICE. [PDF]
Entropy (Basel), 2021 Liu J, Yu A, Lin X, Su W, Ou S.
europepmc +1 more source