Efficient simulation strategy for PCM-based cold-energy storage systems
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866916116914241536 |
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| author | Bejarano, G. Vargas, M. Ortega, M. G. Castaño, F. Normey-Rico, J. E. |
| author_facet | Bejarano, G. Vargas, M. Ortega, M. G. Castaño, F. Normey-Rico, J. E. |
| contents | This paper proposes a computationally efficient simulation strategy for cold thermal energy storage (TES) systems based on phase change material (PCM). Taking as a starting point the recent design of a TES system based on PCM, designed to complement a vapour-compression refrigeration plant, the new highly efficient modelling strategy is described and its performance is compared against the pre-existing one. The need for a new computationally efficient approach comes from the fact that, in the near future, such a TES model is intended to be used in combination with the model of the own mother refrigeration plant, in order to address efficient, long-term energy management strategies, where computation time will become a major issue. Comparative simulations show that the proposed computationally efficient strategy reduces the simulation time to a small fraction of the original figure (from around 1/30th till around 1/120th, depending on the particular choice of the main sampling interval), at the expense of affordable inaccuracy in terms of the PCM charge ratio. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_02597 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Efficient simulation strategy for PCM-based cold-energy storage systems Bejarano, G. Vargas, M. Ortega, M. G. Castaño, F. Normey-Rico, J. E. Systems and Control This paper proposes a computationally efficient simulation strategy for cold thermal energy storage (TES) systems based on phase change material (PCM). Taking as a starting point the recent design of a TES system based on PCM, designed to complement a vapour-compression refrigeration plant, the new highly efficient modelling strategy is described and its performance is compared against the pre-existing one. The need for a new computationally efficient approach comes from the fact that, in the near future, such a TES model is intended to be used in combination with the model of the own mother refrigeration plant, in order to address efficient, long-term energy management strategies, where computation time will become a major issue. Comparative simulations show that the proposed computationally efficient strategy reduces the simulation time to a small fraction of the original figure (from around 1/30th till around 1/120th, depending on the particular choice of the main sampling interval), at the expense of affordable inaccuracy in terms of the PCM charge ratio. |
| title | Efficient simulation strategy for PCM-based cold-energy storage systems |
| topic | Systems and Control |
| url | https://arxiv.org/abs/2402.02597 |