| Issue |
E3S Web Conf.
Volume 312, 2021
76th Italian National Congress ATI (ATI 2021)
|
|
|---|---|---|
| Article Number | 01006 | |
| Number of page(s) | 8 | |
| Section | Energy Storage and Integration of Energy Networks | |
| DOI | https://doi.org/10.1051/e3sconf/202131201006 | |
| Published online | 22 October 2021 | |
Multi-objective sensitivity analysis of shell-and-tube LHTES performance
1 University of Foggia, Department of Sciences of Agriculture, Food, Natural Resources and Engineering, 71121, via Napoli 25, Foggia, Italy
2 Polytechnic University of Bari, Department of Mechanics, Mathematics and Management, 70125 via Orabona 4, Bari, Italy
* Corresponding author: francesco.fornarelli@unifg.it
† Corresponding author: lorenzo.dambrosio@poliba.it
In the present paper a sensitivity analysis has been carried out concerning the charging/discharging time and the stored energy performances of a shell-and-tube LHTES with respect to the number of tubes and the tube internal radius. The aim of this analysis is to investigate how the design variables affect the LHTES performance. this could lead to determine the thermal storage optimal design. Thus, the sensitivity analysis has a key role in the selection of several acceptable solutions. The considered LHTES exhibits a cylindrical shell geometry characterized by constant height and diameter. This aspect has allowed to employ simplified theoretical models able to predict the charging/discharging time and the stored energy performance. These models consider a constant heat exchange wall temperature whereas the heat exchange area and the whole PCM volume vary according to the design variables. This analysis represents the first step to solve the multi-objective optimization of the thermal storage design problem and then to determine the best solutions in both design variables and thermal storage performance domains.
© The Authors, published by EDP Sciences, 2021
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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