Results 31 to 40 of about 2,030 (213)
Applied Sciences, 2020 The most commonly used refrigerants are potent greenhouse gasses that can contribute to climate change. Hydro-Fluoro-Olefins are low Global Warming Potential fluids.
Mariano Pierantozzi +2 more
doaj +1 more source
Experimental Investigation of R1234ze(E)/R32 Replacing R410A in Heat Pump System
Zhileng xuebao, 2017 Nowadays, more and more attention is being paid to the new low Global Warming Potential (GWP) refrigerant R1234ze(E). Mixing this refrigerant with R32 has been studied in recent years.
Wang Lulu, Zhang Hua, Qiu Jinyou
doaj +1 more source
Simulation on Annular Flow of R1234ze(E) Flow Boiling in Micro-tubes
Zhileng xuebao, 2020 A theoretical model for annular flow of R1234ze(E) flow boiling in micro-tubes was proposed in this paper. The surface coefficient of heat transfer and pressure drop were calculated using the model.
王金, 李俊明
doaj +1 more source
International Islamic University Malaysia Engineering Journal, 2013 In this study, a new model of a solar combined ejector-vapor compression refrigeration system has been considered. The system is equipped with an internal heat exchanger to enhance the performance of the cycle.
A. B. Kasaeian, S. Daviran
doaj +1 more source
Optimisation of a high-efficiency solar-driven organic rankine cycle for applications in the built environment [PDF]
, 2018 Energy security, pollution and sustainability are major challenges presently facing the international community, in response to which increasing quantities of renewable energy are to be generated in the urban environment.
Chatzopoulou, Maria Anna +2 more
core +2 more sources
Nihon Kikai Gakkai ronbunshu, 2017 With rapid development of electronic devices, their internal heat generation become significantly denser. Accordingly, the thermal management becomes increasingly important for their stable operation.
Chieko KONDOU +3 more
doaj +1 more source
Energy assessment of an R134a refrigeration plant upgraded to an indirect system using R152a and R1234ze(E) as refrigerants [PDF]
, 2018 In this work the experimental results obtained from a direct expansion refrigerating plant converted into an indirect plant, are presented and discussed in terms of energy consumption for a commercial refrigerating unit plugged to a medium temperature ...
Cabello López, Ramón +4 more
core +1 more source
Flow boiling heat transfer of R134a and low GWP refrigerants in a horizontal micro-scale channel [PDF]
, 2017 The present paper presents an investigation of the effects of the refrigerant type on the heat transfer coefficient during flow boiling inside micro-scale channels.
Abernethy +53 more
core +1 more source
Convective condensation of R134a and R1234ze(E) inside microfin tube
Journal of Physics: Conference Series, 2023 Abstract Environmental concerns are forcing the replacement of the commonly used refrigerants and finding new fluids is a top priority. The hydro-fluoro-olefin (HFO) R1234ze(E), because of its smaller global warming potential (GWP) and shorter atmospheric lifetime, replaced R134a.
Lucchini, A +5 more
openaire +2 more sources
Refrigerant R32 as lower GWP working fluid in residential air conditioning systems in Europe and the USA [PDF]
, 2017 Because air conditioning and heat pump systems contribute greatly to greenhouse gas emissions, equipment with both lower global warming potential (GWP) working fluids and a higher level of performance should be used.
Makhnatch, Pavel +3 more
core +2 more sources