Results 11 to 20 of about 155 (132)
Numerical Analysis of Refrigerant Flow in Different Types Of Capillary Tubes Used R1270
Journal of Engineering and Sustainable Development, 2013 The capillary tube is a common expansion device used in small-sized refrigeration and air-conditioning systems. The main focus lies on the analysis of the refrigerant flow behavior along the capillary tube with different shapes (straight-coiled ...
Haider Ali Hussen
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Experimental Study of Split Room Air Conditioner Charged with R290 and R1270 as Substitutes to R22
Zhileng xuebao, 2013 It is urgent to seek more suitable refrigerants as the traditional R22 used widely in air conditioners nowadays is under phase out for its environmental problems and hydrofluorocarbons (HFCs) would aggravate global warming effects, while hydrocarbons ...
Yang Linde, Wu Jianhua, Hou Jie
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Zhileng xuebaoBoth R1270 and R290 are the alternative refrigerants of great potential. The influence of refrigerant charge on the performances of heat pump water heater using R1270 and R290 respectively and the temperature distribution of the heat transfer fluids in ...
巨福军 +5 more
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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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Experiment on Performance of Residential Air Conditioner with R1270 to Replace R22
Zhileng xuebao, 2010 林崐 +5 more
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Energy Technology, Volume 11, Issue 2, February 2023., 2023 The interdependencies of the refrigerant, flowsheet, compressor, and operating point are evaluated for residential heat pumps. The study shows that the optimal refrigerant strongly depends on the flowsheet and the compressor modeling approach.
Christoph Höges +5 more
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Advances in Civil Engineering, Volume 2023, Issue 1, 2023., 2023 Geopolymer concrete and mortar have evolved over the years as potential alternatives for reducing the greenhouse gases associated with cement production. This current research was aimed at investigating the optimum dosage and concentration of sodium hydroxide required to leach out silica and alumina oxides in the fly ash for geopolymerization to take ...
Damilola Oyejobi +6 more
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International Journal of Energy Research, Volume 2023, Issue 1, 2023., 2023 NH3/CO2 cascade refrigeration system is recognized one of the most promising technologies in low‐temperature application. In this paper, a NH3/CO2 cascade refrigeration system with subcooling in low‐temperature circuit driven by recovery expansion work has been proposed.
Qichao Yang +6 more
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Performance Improvement of OTEC‐ORC and Turbine Based on Binary Zeotropic Working Fluid
International Journal of Chemical Engineering, Volume 2023, Issue 1, 2023., 2023 In this paper, the composition of binary nonazeotropic working fluids is explored from the perspective of improving OTEC‐ORC efficiency, and the turbine is designed to accommodate with the working fluid. It is found that the OTEC‐ORC using a R152a/R32 mixture as the working fluid is significantly higher than the OTEC‐ORC thermal efficiency and system ...
Qingfen Ma +8 more
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Solar RRL, Volume 6, Issue 8, August 2022., 2022 Solar‐assisted heat pumps have the potential to increase the share of renewables in the energy systems and the flexibility of smart grids. An assessment covering technical, economic, and social aspects is given to allow a holistic overview on the application of such systems.
Valeria Palomba +2 more
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