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Experimental study of pure CO2 heat transfer during flow boiling inside horizontal tubes.
Author(s) : HASHIMOTO K., KIYOTANI A.
Summary
In order to develop a more efficient and more compact CO2 heat pump, it is necessary to develop a compact and highly efficient evaporator, and important to understand the CO2 flow boiling heat transfer coefficient. An experimental study was conducted in the paper to measure the pure CO2 (99.999% purity, without oil) heat transfer coefficient in a horizontal copper tube (outer diameter: 6 mm, thickness: 0.4 mm, length: 4 m). The measured heat transfer coefficient was compared with calculated values by means of several correlations.
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Details
- Original title: Experimental study of pure CO2 heat transfer during flow boiling inside horizontal tubes.
- Record ID : 2005-2824
- Languages: English
- Source: Natural Working Fluids 2004: 6th IIR-Gustav Lorentzen Conference
- Publication date: 2004/08/01
Links
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Indexing
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Themes:
Mass transfer;
Other heat-pump applications;
CO2 - Keywords: Horizontal tube; Measurement; Heat transfer; Heat pump; Expérimentation; Heating; Boiling; Domestic water; CO2
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- Date : 1998/06/02
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- Source: Natural Refrigerants, Energy Efficiency, Cost and Safety. Natural Working Fluids '98. IIR-Gustav Lorentzen Conference.
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- Date : 1997/05/13
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- Date : 1997/09/01
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- Date : 2000/07/25
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- Source: Final proceedings of the 4th IIR-Gustav Lorentzen Conference on Natural Working Fluids at Purdue.
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