Experimental Research on Water Boiling Heat Transfer on Horizontal Copper Rod Surface at Sub-Atmospheric Pressure

Li-Hua Yu, Shu-Xue Xu, Guo-Yuan Ma and Jun Wang
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Li-Hua Yu: College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
Shu-Xue Xu: College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
Guo-Yuan Ma: College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
Jun Wang: College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China

Energies, 2015, vol. 8, issue 9, 1-12

Abstract: In recent years, water (R718) as a kind of natural refrigerant—which is environmentally-friendly, safe and cheap—has been reconsidered by scholars. The systems of using water as the refrigerant, such as water vapor compression refrigeration and heat pump systems run at sub-atmospheric pressure. So, the research on water boiling heat transfer at sub-atmospheric pressure has been an important issue. There are many research papers on the evaporation of water, but there is a lack of data on the characteristics at sub-atmospheric pressures, especially lower than 3 kPa (the saturation temperature is 24 °C). In this paper, the experimental research on water boiling heat transfer on a horizontal copper rod surface at 1.8–3.3 kPa is presented. Regression equations of the boiling heat transfer coefficient are obtained based on the experimental data, which are convenient for practical application.

Keywords: water; sub-atmospheric pressure; boiling heat transfer; regression equation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2015
References: View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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