Share
IIR document
Energy recovering using greywater as cold body in a CO2 heat pump water heater.
Number: pap. 1398
Author(s) : ILLÁN GÓMEZ F., GARCÍA-CASCALES J. R., LÓPEZ BELCHÍ A.
Summary
Paper published in poster form during the conference. The use of heat pumps for the production of domestic water is a fact nowadays. Our research group is involved in a project for the characterization of different configurations of CO2 heat pumps for the production of hot water by recovering the energy contained in the greywater, used this as secondary fluid in the evaporator. This will be done numerically by means of a dynamic study of the different options. As a first step, we have constructed an installation to experimentally analyses these systems and to validate the models we aim to use in the process. So, in this paper, a description of the experimental facility developed is presented. This allows testing four different configurations for the refrigeration circuit which let us to compare their energy efficiency, control capabilities and initial cost and determine what the best solution is. The system is modeled dynamically by using TRNSYS® 17. The data reduction process followed to determine the main operating parameters of the system, as well as a brief description of the uncertainty analysis is presented. The paper finishes presenting a comparison between some preliminary experimental results and the results obtained by using the numerical model developed in TRNSYS® 17.
Available documents
Format PDF
Pages: 9
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: Energy recovering using greywater as cold body in a CO2 heat pump water heater.
- Record ID : 30023778
- 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.2018.1398
Links
See other articles from the proceedings (177)
See the conference proceedings
Indexing
- Themes: Residential heat-pumps
- Keywords: Water heater; Hot water; Energy balance; R744; Heat pump; Modelling; Expérimentation; CO2
-
Numerical comparison of several control strateg...
- Author(s) : ILLÁN GÓMEZ F., SENA CUEVAS V., GARCIA CASCALES J. R., SÁNCHEZ-VELASCO F. J.
- Date : 2020/11/11
- Languages : English
- Source: X Congreso Ibérico y VIII Congreso Iberoamericano de Ciencias y Técnicas del Frío, CYTEF 2020.
- Formats : PDF
View record
-
Characterisation of the behaviour of a CO2 wate...
- Author(s) : GARCÍA-CASCALES J. R., MOLINA-VALVERDE R., ILLÁN GÓMEZ F., 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
View record
-
External water subcooling to improve the perfor...
- Author(s) : OTON MARTINEZ R. A., ILLÁN GÓMEZ F., GARCÍA-CASCALES J. R., SÁNCHEZ-VELASCO F. J., SENA CUEVAS V.
- Date : 2021/05
- Languages : English
- Source: 2021 Purdue Conferences. 18th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
View record
-
Numerical investigation of CO2 heat ...
- Author(s) : YULIANTO M., SUZUKI T., MIYAOKA Y., OHNO K., GIANNETTI N., SAITO K., YAMAGUCHI S.
- 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
-
Performance evaluation of CO2 HPWH s...
- Author(s) : NAWAZ K., SHEN B., ELATAR A., BAXTER D. van, ABDELAZIZ O.
- 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