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Impact of uncertainties on estimations of heat pump cycle performance.
Author(s) : HOGBERG M., VAMLING L.
Type of article: Article, IJR article
Summary
Sensitivity analysis is used to show how uncertainties in basic factors, such as heat transfer, pressure drop, compressor efficiency, and thermophysical properties, influence the result of heat pump cycle performance estimations. Working fluids, both pure substances and non-azeotropic mixtures, were examined. It was found that evaporation heat transfer and compressor efficiency are two areas where improvements are needed. It is also shown that estimates using very accurate, substance-specific, equations of state differ from those using more general types by up to 1% for COP and 2% for capacity.
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Pages: 34-42
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Details
- Original title: Impact of uncertainties on estimations of heat pump cycle performance.
- Record ID : 1996-3059
- Languages: English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 19 - n. 1
- Publication date: 1996/01
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Indexing
- Themes: Other heat-pump applications
- Keywords: Calculation; Accuracy; Simulation; Heat pump; COP
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- Date : 2002/01/12
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A study on the ground-coupled heat-pump system....
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- Date : 1994/02
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- Source: Transaction of the Society of Heating, Air-conditioning and Sanitary Engineers of Japan - n. 54
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Accuracy analysis of existing thermodynamic mod...
- Author(s) : RUNDLE R. W., TARNAWSKI V. R., AITTOMAKI A.
- Date : 1996/09/22
- Languages : English
- Source: Heat pumping technologies towards the next century: applications and markets. Proceedings of the 5th IEA Conference.
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- Author(s) : KUCHINSKAS V.
- Date : 1992
- Languages : Lithuanian
- Source: Mech. Elektrif. Mokslo Darb. - n. 23
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- Author(s) : HARA T., et al.
- Date : 1991/08/10
- Languages : English
- Source: New challenges in refrigeration. Proceedings of the XVIIIth International Congress of Refrigeration, August 10-17, 1991, Montreal, Quebec, Canada.
- Formats : PDF
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