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Open AccessArticle
Performance Assessment of an Integrated Low-Approach Low-Temperature Open Cooling Tower with Radiant Cooling and Displacement Ventilation for Space Conditioning in Temperate Climates
by
Mehdi Nasrabadi
Mehdi Nasrabadi 1,* and
Donal Finn
Donal Finn 2
1
Department of Mechanical Engineering, University of Birjand, Birjand 9717434765, Iran
2
School of Mechanical, Materials Engineering, University College Dublin, D04 V1W8 Dublin, Ireland
*
Author to whom correspondence should be addressed.
Energies 2024, 17(15), 3763; https://doi.org/10.3390/en17153763 (registering DOI)
Submission received: 25 April 2024
/
Revised: 15 July 2024
/
Accepted: 19 July 2024
/
Published: 30 July 2024
Abstract
Cooling towers, by producing chilled water and by integration with radiant and displacement cooling systems, offer a possible alternative method for space conditioning of office buildings in temperate climates. This present study examines the operational feasibility of a cooling tower in conjunction with a radiant and displacement ventilation cooling system for office conditioning in four temperate climates. The climates are: cool and semi-humid (Birmingham, UK), cool and dry (Helsinki, FI), warm and humid (Paris, FR) and warm and dry (Prague, CZ). The system is capable of producing chilled water between 14 and 20 °C, with low approach tower temperatures (1–3 K). A mathematical model of the cooling tower system was developed and integrated with an office building energy simulation model. Using the integrated simulation model, assessment was carried out based on ASHRAE design day specifications, as well as a complete cooling seasonal analysis. Moreover, the performance of the system is benchmarked against a variable-air-volume cooling system. Energy savings for the system when benchmarked against a variable-air-volume air conditioning system, where the chiller COP (coefficient of performance) varies from 2.75 to 6.5, were 62% to 37% in Paris, 56% to 30% in Prague, 52% to 28% in Helsinki and 45% to 13% in Birmingham, respectively.
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MDPI and ACS Style
Nasrabadi, M.; Finn, D.
Performance Assessment of an Integrated Low-Approach Low-Temperature Open Cooling Tower with Radiant Cooling and Displacement Ventilation for Space Conditioning in Temperate Climates. Energies 2024, 17, 3763.
https://doi.org/10.3390/en17153763
AMA Style
Nasrabadi M, Finn D.
Performance Assessment of an Integrated Low-Approach Low-Temperature Open Cooling Tower with Radiant Cooling and Displacement Ventilation for Space Conditioning in Temperate Climates. Energies. 2024; 17(15):3763.
https://doi.org/10.3390/en17153763
Chicago/Turabian Style
Nasrabadi, Mehdi, and Donal Finn.
2024. "Performance Assessment of an Integrated Low-Approach Low-Temperature Open Cooling Tower with Radiant Cooling and Displacement Ventilation for Space Conditioning in Temperate Climates" Energies 17, no. 15: 3763.
https://doi.org/10.3390/en17153763
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