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Dynamic simulation of a combined solar system including phase change material storage and its experimental validation

Author

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  • Le Roux, Diane
  • Serra, Sylvain
  • Sochard, Sabine
  • Reneaume, Jean-Michel

Abstract

Thermal energy storage is a key issue in efficient energy system applications, especially in renewable energies. In this respect, phase change materials (PCM) have attracted interest as an active solution for efficient energy management, particularly in the building sector. This paper presents a modelling of a PCM thermal battery in solar system assisted by heat pump. The storage stores the heat produced by unglazed solar panels (Batisol®) and releases it into a heat pump. Then this heat is sent to two other PCM storages. In this way, the low-temperature heating and domestic hot water needs of a commercial building in winter are met. The storage consists of a block of PCM contained between two plates of heat transfer fluid. It acts as a plate heat exchanger that can be charged and discharged simultaneously. The objective of the study is to dynamically simulate the thermal behaviour of this storage for different hot inlet temperature profiles. A rectangular profile is used to validate the model using experimental results. Then, a solar system assisted by heat pump and three PCM storages is dynamically simulated. This 2D model would be useful to validate a simpler model for optimising the operational parameters of the system.

Suggested Citation

  • Le Roux, Diane & Serra, Sylvain & Sochard, Sabine & Reneaume, Jean-Michel, 2024. "Dynamic simulation of a combined solar system including phase change material storage and its experimental validation," Renewable Energy, Elsevier, vol. 234(C).
    • Handle: RePEc:eee:renene:v:234:y:2024:i:c:s0960148124011807
    DOI: 10.1016/j.renene.2024.121112
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