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Growing awareness of the potential environmental impacts of conventional refrigerants (CFCs and HFCs) has led to efforts to identify suitable refrigerants for various heat pump applications with minimum environmental impact. This study is focused on the performance evaluation of pure propane and isobutane as drop-in-replacement for R134a for heat pump water heating (HPWH). A component-based model is used to predict the performance. Key performance parameters such as unified energy factor, first hour rating and thermal stratification in the water tank are investigated. Appropriate experiments are conducted to validate the finding from model. Simulation and experimental findings suggest that both alternative refrigerants could provide comparable system performance to that of the baseline system containing R134a. System refrigerant charge and the condenser discharge temperature are established to investigate the potential of hydrocarbon refrigerants to substitute R134a without significant system modifications.
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Details
- Original title: Hydrocarbons as natural refrigerants for heat pump water heating applications.
- Record ID : 30023635
- Languages: English
- Source: 13th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2018). Proceedings. Valencia, Spain, June 18-20th 2018.
- Publication date: 2018/06/18
- DOI: http://dx.doi.org/10.18462/iir.gl.2018.1227
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Indexing
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Themes:
Residential heat-pumps;
Hydrocarbons - Keywords: R600a; R134a; Isobutane; Hot water; R290; Substitute; Simulation; Propane; Heat pump; Performance; Hydrocarbon
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Hydrocarbons as natural refrigerants for heat p...
- Author(s) : NAWAZ K., ELATAR A., SHEN B., et al.
- Date : 2019/08/24
- Languages : English
- Source: Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
- Formats : PDF
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Resultados experimentales de un prototipo tipo ...
- Author(s) : PITARCH MOCHOLI M., GONZÁLVEZ-MACIÁ J., NAVARRO-PERIS E., et al.
- Date : 2018/03
- Languages : Spanish
- Source: Frío Calor Aire acondicionado - n. 511
- Formats : PDF
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Ecopac – isobutane heat pump acting as economizer.
- Author(s) : GRANRYD E., PALM B., ÖLEN V., ANDERSSON K., NOWACKI J. E.
- Date : 2022/06/13
- Languages : English
- Source: 15th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2022). Proceedings. Trondheim, Norway, June 13-15th 2022.
- Formats : PDF
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Comparison of an innovative subcooled heat pump...
- Author(s) : MASIP X., ALVAREZ-PINEIRO L., HERVÁS-BLASCO E., NAVARRO-PERIS E., CORBERÁN J. M.
- Date : 2020/11/11
- Languages : English
- Source: X Congreso Ibérico y VIII Congreso Iberoamericano de Ciencias y Técnicas del Frío, CYTEF 2020.
- Formats : PDF
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Experimental analysis of natural refrigerant bl...
- Author(s) : NOSBERS R., SCHMIEDER F., HESSE U.
- Date : 2018/07/09
- Languages : English
- Source: 2018 Purdue Conferences. 17th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
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