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Modelling of heat losses in indoor swimming pools coupled with liquid desiccant technology [dataset] Open Access

Indoor swimming pools require ventilation and precise temperature and humidity control, leading to significant energy consumption. This study investigated the use of liquid desiccant technology to reduce energy consumption for heating and dehumidification of two indoor swimming pools in a UK leisure centre. Through dynamic modelling and techno-economic analysis, this research quantified heat losses in the pools, simulated the performance of liquid desiccant technology, evaluated the economic benefits and cost implications of regenerating the desiccant solution using waste heat, and assessed the feasibility of adopting the technology across the entire UK. Results showed that evaporative losses were the dominant heat loss mechanism for both pools, while the proposed liquid desiccant system effectively maintained optimal temperature and humidity conditions. Additionally, pool water can serve as a heat sink after desiccant regeneration, thereby reducing the energy demand for pool water heating. Energy consumption could be reduced by 68.9–76.7% when using a cooling tower and 77.5–88.1% when using pool water for heat rejection, with internal rates of return that can exceed 15% for the most cost-effective configurations. If the regeneration heat is sourced externally, up to £34.7/MWh could be paid for the heat required while ensuring the cost-effectiveness of the process. These findings suggest that liquid desiccant systems can reduce heating and dehumidification energy in indoor swimming pools when low-temperature heat is available for regeneration. Future research should focus on experimental validation, addressing interactions with chlorine gases, long-term system performance and real-world implementation challenges to ensure commercial deployment.

Descriptions

Resource type

Dataset

Contributors

Creator: Giampieri, Alessandro ¹
Data collector: Giampieri, Alessandro ¹
Data curator: Giampieri, Alessandro ¹

¹ Durham University

Funder

UKRI

Research methods

Modelling

Other description

Keyword

Liquid desiccants
Thermochemical energy storage
Ultra-low-grade heat recovery
M-TES
Techno-economic analysis
MCDA
Indoor swimming pools
Dehumidification

Subject

Swimming pools--Heating and ventilation
Heat storage--Research
Drying agents--Research
Humidity--Control

Location

Language

Cited in

Identifier

ark:/32150/r2m900nt46h
doi:10.15128/r2m900nt46h

Rights

Creative Commons Attribution 4.0 International (CC BY)

Publisher

Durham University

Date Created

File Details

Depositor

A. Giampieri

Date Uploaded

23 February 2026, 11:02:19

Date Modified

25 February 2026, 11:02:45

Audit Status

Audits have not yet been run on this file.

Characterization

File format: zip (ZIP Format)

Mime type: application/zip

File size: 2851486

Last modified: 2026:02:23 11:27:24+00:00

Filename: Data for manuscript - Pool investigation with LD.zip

Original checksum: dd0b68343fbd9dc4eeb135512b085613