Swimming pool thermal energy storage, an alternative for distributed cooling energy storage

•Swimming pool as a seasonal, cooling, thermal energy storage solution.•Case study in Phoenix, Arizona, USA.•The pool is used for heating in the winter and cooling in the summer.•An average pool stores 3500 kWh of cooling energy at 0oC.•Cooling energy storage cost of 0.078 US$ kWhe−1. The rise in di...

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Bibliographic Details
Published in:Energy conversion and management 2021-02, Vol.230, p.113796, Article 113796
Main Authors: Hunt, Julian David, Zakeri, Behnam, Leal Filho, Walter, Schneider, Paulo Smith, Weber, Natália de Assis Brasil, Vieira, Lara Werncke, Ermel, Conrado, Castro, Nivalde José de, Barbosa, Paulo Sergio Franco, Nascimento, Andreas, Mastrucci, Alessio
Format: Article
Language:English
Subjects:
Alternative energy sources
Batteries
Cooling
Cooling energy storage
Energy demand
Energy storage
Heat
Heat exchangers
Heat pumps
Heat sinks
Ice slurry
Recreation
Renewable energies
Renewable energy
Renewable resources
Seasonal storage
Seasonal variations
Slurries
Solar energy
Summer
Swimming pool
Swimming pools
Thermal energy
Winter
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Summary:•Swimming pool as a seasonal, cooling, thermal energy storage solution.•Case study in Phoenix, Arizona, USA.•The pool is used for heating in the winter and cooling in the summer.•An average pool stores 3500 kWh of cooling energy at 0oC.•Cooling energy storage cost of 0.078 US$ kWhe−1. The rise in distributed renewable energy generation creates a growing need to find viable solutions for energy storage to match energy demand and supply at any time. This paper evaluates the possibility of using swimming pools as a long-term cooling energy storage solution, i.e., Swimming Pool Thermal Energy Storage (SPTES). This technology allows a small building to store solar energy for cooling purposes in a yearly cycle, by filling the pool with ice slurry in winter and using that ice to cool the house in the summertime. Additionally, the pool can be used as a heat sink for a heat pump to heat the house during the winter. Results show that the energy storage cost of 0.078 US$ kWhe−1 is substantially smaller when compared with batteries (125 US$ kWhe−1). This makes SPTES a good alternative to support the development of 100% renewable energy systems in locations where the climate has a highly seasonal variation in temperature and the cooling demand is high in summer.
ISSN:0196-8904
1879-2227
DOI:10.1016/j.enconman.2020.113796