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Développement d’un modèle de réservoir de stockage d’énergie thermique stratifié souterrain et comparaison des performances par rapport à un réservoir en surface.

Development of an underground stratified thermal energy storage tank model and performance comparisons with an above-ground tank.

Numéro : 2275

Auteurs : MOGHIMI P., BACH C. K., SPITLER J. D.

Résumé

Thermal Energy Storage (TES) offers a promising solution for facilitating increased use of renewables while ensuring electrical grid stability. By shifting building thermal needs from peak hours to off peak hours, TES can play a crucial role in demand-side management and TES’s storage efficiency is one of the preliminary design considerations. In this paper we aim to compare water-based TES tanks in buried-in-the-ground and above-ground configurations. Burying the tank in the ground is one viable strategy to lower the tank’s heat losses while also eliminating an above ground footprint. We present our approach for modeling a fully stratified buried tank designed for daily storage at a residential scale. Additionally, we discuss the development and validation of the proposed model. Parametric studies are conducted to evaluate the TES tank’s efficiency as a function of insulation thickness and location. Results indicate that burying a tank with identical insulation thickness increases storage efficiency up to 10% and 12% for Stillwater and Phoenix respectively.

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Pages : 10 p.

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Détails

  • Titre original : Development of an underground stratified thermal energy storage tank model and performance comparisons with an above-ground tank.
  • Identifiant de la fiche : 30033106
  • Langues : Anglais
  • Sujet : Environnement
  • Source : 2024 Purdue Conferences. 20th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Date d'édition : 17/07/2024

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