Share
IIR document
Feasibility study of various conventional and unconventional natural refrigerants for high temperature heat pump applications.
Number: 1107
Author(s) : YOUNG J., SUBIANTORO A.
Summary
Heat pumps offer an energy-efficient alternative to traditional electric heaters. However, current heat pumps are unable to perform reliably at very high temperatures (above 100C). One of the major limitations is with the thermophysical properties of traditional refrigerants. Recently there has been an increase in awareness of sustainable practices and processors, hence the use of natural refrigerants are highly desired due to their reduced environmental impacts compared to synthetic refrigerants. Various attempts have been reported at testing the suitability of various existing refrigerants (synthetic and natural) and blends, however, no single fluid or group of fluids have been conclusively found. In this study, a broad survey is carried out to look at various natural fluids, including those that have not been considered before in the literature, for High Temperature Heat Pumps(HTHPs) with a condensing and evaporating temperature of 120C and 5C respectively. Ammonia, Methylamine, Ethanol and Water are the fluids that showed the best performance with the HTHP cycle, with Ethanol showing the highest Coefficient of Performance (COP) of 3.19.
Available documents
Feasibility study of various conventional and unconventional natural refrigerants for high temperature heat pump applications
Pages: 6
Available
Public price
20 €
Member price*
Free
* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).
Details
- Original title: Feasibility study of various conventional and unconventional natural refrigerants for high temperature heat pump applications.
- Record ID : 30027971
- Languages: English
- Subject: Technology
- Source: 14th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2020). Proceedings. Kyoto, Japon, December 7-9th 2020.
- Publication date: 2020/12/07
- DOI: http://dx.doi.org/10.18462/IIR.gl.2020.1107
Links
See other articles from the proceedings (120)
See the conference proceedings
Indexing
-
Themes:
Hydrocarbons;
CO2;
Water;
Other refrigerants;
Industrial heat pumps;
Residential heat-pumps - Keywords: Natural refrigerant; CO2; R744; Water; R718; Heat pump; High temperature; Domestic heat pump; Industrial application; Performance; COP; Ethanol; Methylamine; Ammonia; R630; R717; Hydrocarbon; Modelling; Simulation
-
Thermodynamic analysis of vapour compression he...
- Author(s) : ANDERSEN M. P., ZÜHLSDORF B., MARKUSSEN W. B., JENSEN J. K., POULSEN J. L., ELMEGAARD B.
- 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
View record
-
Research Summary and Literature Review on Model...
- Author(s) : BYRNE P.
- Date : 2022/06
- Languages : English
- Source: Energies - 15 - 10
- Formats : PDF
View record
-
Natural refrigerants in heat pump systems.
- Author(s) : HU B., WU D., LIANG J., WANG R. Z.
- Date : 2020/12/07
- Languages : English
- Source: 14th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2020). Proceedings. Kyoto, Japon, December 7-9th 2020.
- Formats : PDF
View record
-
Front cover of the book Natural Refrigerants: Applications and Practical Guidelines
Natural Refrigerants: Applications and Practica...
- Author(s) : ECKERT M., KAUFFELD M., SIEGISMUND V.
- Date : 2022
- Languages : English, German
- Formats : Website
View record
-
Performance evaluation of high-temperature heat...
- Author(s) : REN S., AHRENS M. U., HAFNER A., WIDELL K. N.
- 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
View record