Proceedings of the 14th International Renewable Energy Storage Conference 2020 (IRES 2020)

A Comparison Study of Sensible and Latent Thermal Energy Storage Used in Domestic Hot Water Solar Heating System

Authors
Josip Batista, Kristian Lenic, Anica Trp, Fran Torbarina
Corresponding Author
Josip Batista
Available Online 4 February 2021.
DOI
https://doi.org/10.2991/ahe.k.210202.029How to use a DOI?
Keywords
domestic hot water solar system, sensible thermal energy storage, latent thermal energy storage
Abstract

Numerical analysis of domestic hot water solar system with sensible and latent thermal energy storages (TES), for specific residential building, has been presented in this paper. Numerical models of systems are developed in the Trnsys environment, consisting of the sensible or latent thermal energy storage tank, the flat-plate solar collectors, pump, differential controller and auxiliary heating source. Realistic meteorological conditions and standard user load profile were used as input parameters. The latent thermal energy storage tank contains sodium acetate trihydrate with added graphite powder, as phase change material (PCM), filled in cylindrical capsules and integrated into the tank, filling approximately 11% of total tank volume. The set of transient numerical simulations has been performed for a different tank volume and collector area ratios, ranging from 0.03 to 0.16 m3/m2. The performance of latent thermal energy storage system is compared with conventional sensible thermal energy storage system in terms of: collector efficiency, system efficiency, solar fraction and auxiliary energy consumption. The results of simulations indicate that latent thermal energy storage has advantages for specific tank volume to collector ratios, when the average temperature inside the tank is approaching the melting temperature of PCM.

Copyright
© 2021, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

Volume Title
Proceedings of the 14th International Renewable Energy Storage Conference 2020 (IRES 2020)
Series
Atlantis Highlights in Engineering
Publication Date
4 February 2021
ISBN
978-94-6239-327-1
ISSN
2589-4943
DOI
https://doi.org/10.2991/ahe.k.210202.029How to use a DOI?
Copyright
© 2021, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - Josip Batista
AU  - Kristian Lenic
AU  - Anica Trp
AU  - Fran Torbarina
PY  - 2021
DA  - 2021/02/04
TI  - A Comparison Study of Sensible and Latent Thermal Energy Storage Used in Domestic Hot Water Solar Heating System
BT  - Proceedings of the 14th International Renewable Energy Storage Conference 2020 (IRES 2020)
PB  - Atlantis Press
SP  - 199
EP  - 205
SN  - 2589-4943
UR  - https://doi.org/10.2991/ahe.k.210202.029
DO  - https://doi.org/10.2991/ahe.k.210202.029
ID  - Batista2021
ER  -