Proceedings of the International Renewable Energy Storage and Systems Conference (IRES 2023)

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A comparison study of different latent thermal energy storage roles in heating systems with heat pump

Authors
Fran Torbarina1, *, Kristian Lenic1, Anica Trp1, Igor Wolf1
1University of Rijeka, Faculty of Engineering, Department of Thermodynamics and Energy Engineering, Rijeka, Croatia
*Corresponding author. Email: fran.torbarina@riteh.uniri.hr
Corresponding Author
Fran Torbarina
Available Online 11 July 2024.
DOI
10.2991/978-94-6463-455-6_20How to use a DOI?
Keywords
latent thermal energy storage; phase change material; TRNSYS; dynamic system simulation
Abstract

In this paper, energy efficiencies of two heating systems with heat pump, latent thermal energy storage (LTES) and solar collectors that are working in moderate continental climate conditions were numerically analysed and compared. The two considered LTES roles are the heat source for the heat pump (LTES on the evaporator side) and high temperature heat storage for directly supplying the consumers (LTES on the condenser side). In the first system, the purpose for using LTES is to provide more favourable working conditions for the heat pump by using previously collected and stored heat from solar collectors and increase its average coefficient of performance. In the second system, LTES is used for storing the collected solar heat on a sufficiently high temperature so it can be used directly for heating, avoiding the use of heat pump in those periods. The numerical investigations were performed for the whole heating period and the results were presented in terms of the share of renewable energy in total delivered energy, seasonal electricity consumption, system seasonal performance factor, total stored energy and average solar collector efficiency. System with LTES on the condenser side achieved a higher share of renewable energy and higher seasonal performance factor and also consumed less electricity than the system with LTES on the evaporator side.

Copyright
© 2024 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the International Renewable Energy Storage and Systems Conference (IRES 2023)
Series
Atlantis Highlights in Engineering
Publication Date
11 July 2024
ISBN
10.2991/978-94-6463-455-6_20
ISSN
2589-4943
DOI
10.2991/978-94-6463-455-6_20How to use a DOI?
Copyright
© 2024 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Fran Torbarina
AU  - Kristian Lenic
AU  - Anica Trp
AU  - Igor Wolf
PY  - 2024
DA  - 2024/07/11
TI  - A comparison study of different latent thermal energy storage roles in heating systems with heat pump
BT  - Proceedings of the International Renewable Energy Storage and Systems Conference (IRES 2023)
PB  - Atlantis Press
SP  - 195
EP  - 204
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-455-6_20
DO  - 10.2991/978-94-6463-455-6_20
ID  - Torbarina2024
ER  -