Comparative Research on Performances of R516A and R134a in Water-Cooled Chillers
Zhileng xuebaoR516A is one of the new substitutes for R134a refrigerant in water-cooled chillers. The COP (coefficient of performance) and discharge temperatures of R516A and R134a are compared through a single-stage vapor compression cycle. Under nominal and variable
Li Xiongya, Hua Xue, Guo Xiaolin
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Experimental investigation of two-phase pressure drop in a microchannel [PDF]
, 2009 This paper was presented at the 2nd Micro and Nano Flows Conference (MNF2009), which was held at Brunel University, West London, UK. The conference was organised by Brunel University and supported by the Institution of Mechanical Engineers, IPEM, the ...
2nd Micro and Nano Flows Conference (MNF2009) +3 more
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Experimental investigation of a forced convection heat transfer of the organic fluid R-125 at supercritical pressures and under organic rankine cycle conditions [PDF]
, 2017 The organic Rankine cycle (ORC) is a suitable technology for utilizing low-grade temperature heat sources of ~100 °C from various industry processes. In the ORC cycle an organic fluid with a lower boiling point is used as a working medium.
Billiet, Marijn +4 more
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Theoretical investigation of the thermal performance of a novel solar loop-heat-pipe façade-based heat pump water heating system [PDF]
, 2014 The aim of the paper was to present a dedicated theoretical investigation into the thermal performance of a novel solar loop-heat-pipe façade based heat pump water heating system. This involved thermo-fluid analyses, computer numerical model development,
He, Wei +5 more
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Tribological Studies on Scuffing Due to the Influence of Carbon Dioxide Used as a Refrigerant in Compressors [PDF]
, 2003 The refrigeration and air conditioning industry has expressed a great interest in the use of carbon dioxide (CO2) as a refrigerant. CO2 is anticipated to replace HFC refrigerants, which are known to have a negative effect on the environment. The reason
Conry, T.F. +2 more
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A comparison with the three-zone model for flow boiling heat transfer in small diameter tubes [PDF]
, 2006 Flow boiling heat transfer experimental results, obtained in two stainless steel tubes of internal diameter 4.26 mm and 2.01 mm using R134a as the working fluid, indicate that the local heat transfer coefficient increases with heat flux and is ...
Karayiannis, TG +2 more
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EXERGETIC PERFORMANCE OF A DOMESTIC REFRIGERATOR USING R12 AND ITS ALTERNATIVE REFRIGERANTS [PDF]
Journal of Engineering Science and Technology, 2010 Production and use of R12 and other chlorofluorocarbon refrigerants will be prohibited completely all over the world in the year 2010 due to their harmful effects on the earth’s protective ozone layer.
BUKOLA O. BOLAJI
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The Performance of Alternative Refrigerant Gas R152a as Mobile Air Conditioning Refrigerant
Chemical Engineering Transactions, 2014 In this study, the possible alternative replacement of R134a with R152 in the air conditioning (AC) system of an automobile has been investigated theoretically.
K. Bilen, A.T. Kalkisim, I. Solmus
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Characterization of Two-Phase Flow in Microchannels [PDF]
, 2002 Aluminum multi-port microchannel tubes are currently utilized in automotive air conditioners for refrigerant condensation. Recent research activities are directed toward developing other air conditioning and refrigeration systems with microchannel ...
Hrnjak, P.S., Newell, T.A., Nino, V.G.
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Study of Water-cooled Auto-cascade Refrigeration Cycle with a Low Temperature of﹣60 ℃
Zhileng xuebao, 2015 A new water-cooled auto-cascade refrigeration cycle(WACR) using a binary refrigerant mixture is presented, which adopts a condenser-phase separator instead of a condenser and an evaporative separator in traditional auto-cascade refrigeration cycle.
Yang Yongan, Yang Zhao, Liu Bin
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