![](https://iifiir-uploads.s3.fr-par.scw.cloud/conferencereport/6079/image/small-08668c331ca75923c311d435c11cce12.jpg)
IIR document
Comparison of zeotropic working fluid mixtures in different heat pump cycles.
Number: pap. n. 1166
Author(s) : ZÜHLSDORF B., JENSEN J. K., REINHOLDT L. O., et al.
Summary
Heat pumps are often integrated into boundary conditions with a temperature glide, resulting in inevitable inefficiencies due to heat transfer. Zeotropic mixtures have the potential to match the temperature profiles but require a screening procedure to select the best performing working fluid during the heat pump design. Hybrid compression-absorption heat pumps are an alternative technology, in which a recirculation pump can adjust the temperature profile of a pre-selected working fluid e.g., ammonia/water. This cycle is more complex but enables to avoid the working fluid screening. This paper compared the two approaches with each other and to pure working fluids to evaluate the potential under different boundary conditions. Both systems outperformed conventional systems using pure fluids. The optimal zeotropic mixtures were found to show the highest thermodynamic performances while the hybrid cycle with ammonia/water enabled more compact compression equipment.
Available documents
Format PDF
Pages: 8
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: Comparison of zeotropic working fluid mixtures in different heat pump cycles.
- Record ID : 30026518
- Languages: English
- Source: Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
- Publication date: 2019/08/24
- DOI: http://dx.doi.org/10.18462/iir.icr.2019.1166
Links
See other articles from the proceedings (632)
See the conference proceedings
-
Comparison of an absorption-compression hybrid ...
- Author(s) : PACHECO-CEDEÑO J. S., RODRíGUEZ-MUÑOZ J. L., RAMIREZ-MINGUELA J. J., PÉREZ-GARCÍA V.
- Date : 2023/11
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 155
- Formats : PDF
View record
-
Further research concerning the hybrid compress...
- Author(s) : STAICOVICI M. D.
- Date : 2017/05/11
- Languages : English
- Source: 7th Conference on Ammonia and CO2 Refrigeration Technology. Proceedings: Ohrid, North Macedonia, May 11-13, 2017.
- Formats : PDF
View record
-
Impianto a pompa di calore che utilizza ammonia...
- Author(s) : HALOZAN H., RIEBERER R.
- Date : 2008
- Languages : Italian
- Source: Industria & Formazione - vol. 32 - n. 3
- Formats : PDF
View record
-
Investigation of ammonia/water hybrid absorptio...
- Author(s) : JENSEN J. K., REINHOLDT L., MARKUSSEN W. B., et al.
- Date : 2014/03/02
- Languages : English
- Source: International sorption heat pump conference (ISHPC2014), College Park, United States, March 31-April 2, 2014.
- Formats : PDF
View record
-
Thermodynamic comparison of different designs o...
- Author(s) : MOSER H., RIEBERER R.
- Date : 2008/09/07
- Languages : English
- Source: 8th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2008)
- Formats : PDF
View record