Results 31 to 40 of about 271 (169)
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
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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
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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
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Frontiers in Energy Research, 2021 Despite of the large number of research dedicated to condensation heat transfer and pressure drop characteristics in pristine micro-fin tubes, experimental investigation on effects of tube expansion have not been reported in the open literature.
Na Liu, Qian Zhao, Zhixiang Lan
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A Novel Generator Design Utilised for Conventional Ejector Refrigeration Systems
Energies, 2021 Ejector refrigeration systems are rapidly evolving and are poised to become one of the most preferred cooling systems in the near future. CO2 transcritical refrigeration systems have inherently high working pressures and discharge temperatures, providing
Anas F. A. Elbarghthi +2 more
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Pool boiling of R515A, R1234ze(E), and R1233zd(E) on a reentrant cavity surface
International Journal of Heat and Mass Transfer, 2020 Abstract This paper quantifies the pool boiling performance of R515A, R1234ze(E), and R1233zd(E) on a flattened, horizontal Turbo-ESP surface for air-conditioning. The measured boiling curve for R515A had roughly a 14 % larger heat flux than that of R1234ze(E) for heat fluxes greater than 45 kWm−2. For heat fluxes between 14 kWm−2 and 85 kWm−2, R515A
M.A. Kedzierski, L. Lin
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Applied Sciences, 2021 The air conditioning and refrigeration industry is now dealing with an imminent substitution of widely implemented refrigerants having a non-negligible global warming impact.
Andrea Diani, Luisa Rossetto
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HFO1234ze(e) As an Alternative Refrigerant for Ejector Cooling Technology
Energies, 2019 The paper presented a mathematical assessment of selected refrigerants for the ejector cooling purpose. R1234ze(e) and R1234yf are the well-known refrigerants of hydrofluoroolefins (HFOs), the fourth-generation halocarbon refrigerants.
Van Vu Nguyen +2 more
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CFD Based Design for Ejector Cooling System Using HFOS (1234ze(E) and 1234yf)
Energies, 2020 The field of computational fluid dynamics has been rekindled by recent researchers to unleash this powerful tool to predict the ejector design, as well as to analyse and improve its performance.
Anas F A Elbarghthi +3 more
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Applied Sciences, 2018 In this study, the condensation heat transfer coefficient and pressure drop characteristics of a 4 mm outside diameter smooth tube, using R32, R152a, R410A, and R1234ze(E) refrigerants, were examined.
Norihiro Inoue +3 more
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