| Issue |
E3S Web Conf.
Volume 116, 2019
International Conference on Advances in Energy Systems and Environmental Engineering (ASEE19)
|
|
|---|---|---|
| Article Number | 00038 | |
| Number of page(s) | 8 | |
| DOI | https://doi.org/10.1051/e3sconf/201911600038 | |
| Published online | 24 September 2019 | |
Testing the performance of a prototype thermal energy storage tank working with organic phase change material for space heating application conditions
1
National and Kapodistrian University of Athens, General Department, Energy and Environmental Research Laboratory, 344 00 Psachna Campus, Evia, Greece
2
Polytechnic Institute of Setubal, Portugal
* Corresponding author: mkoukou@uoa.gr, m_koukou@otenet.gr
A prototype Latent Heat Thermal Energy Storage (LHTES) unit has been designed, constructed, and experimentally analysed for its thermal storage performance under different operational conditions considering heating application and exploiting solar and geothermal energy. The system consists of a rectangular tank filled with Phase Change Material (PCM) and a finned tube staggered Heat Exchanger (HE) while water is used as Heat Transfer Fluid (HTF). Different HTF inlet temperatures and flow rates were tested to find out their effects on LHTES performance. Thermal quantities such as HTF outlet temperature, heat transfer rate, stored energy, were evaluated as a function of the conditions studied. Two commercial organic PCMs were tested A44 and A46. Results indicate that A44 is more efficient during the charging period, taking into account the two energy sources, solar and heat pump. During the discharging process, it exhibits higher storage capacity than A46. Concluding, the developed methodology can be applied to study different PCMs and building applications.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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