A wet-bulb temperature-based control method for controlling the heat balance of the ground soil of a hybrid ground-source heat pump system

Hybrid ground-source heat pump system has been widely used for mitigating the heat accumulation problem of conventional ground-source heat pump systems. This article proposes a wet-bulb temperature-based control method for a hybrid ground-source heat pump system which comprises a ground-source heat...

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Main Authors: Hang Wan, Xinhua Xu, Anbang Li, Tian Yan, Wenjie Gang
Format: Article
Language:English
Published: SAGE Publishing 2017-06-01
Series:Advances in Mechanical Engineering
Online Access:https://doi.org/10.1177/1687814017701705
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author Hang Wan
Xinhua Xu
Anbang Li
Tian Yan
Wenjie Gang
author_facet Hang Wan
Xinhua Xu
Anbang Li
Tian Yan
Wenjie Gang
author_sort Hang Wan
collection DOAJ
description Hybrid ground-source heat pump system has been widely used for mitigating the heat accumulation problem of conventional ground-source heat pump systems. This article proposes a wet-bulb temperature-based control method for a hybrid ground-source heat pump system which comprises a ground-source heat pump and a conventional water-cooled chiller using a cooling tower. With this method, the operation priority between the ground-source heat pump and the water-cooled chiller is determined according to the outdoor wet-bulb temperature. A TRNSYS platform of the system is developed, and simulations are carried out to investigate the system performance under the proposed control method. Meanwhile, simulations with two other control methods (reference methods), that is, the ground-source heat pump–prioritized method and water-cooled chiller–prioritized method, are also conducted. The study results show that the proposed control method has obvious advantage in controlling the heat balance of the ground-source heat exchangers, and in the meantime, no more energy is consumed when compared with the two reference control methods.
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spelling doaj.art-6b2b7f6fda96410dbbd529cdbc6b303e2022-12-22T02:37:13ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402017-06-01910.1177/1687814017701705A wet-bulb temperature-based control method for controlling the heat balance of the ground soil of a hybrid ground-source heat pump systemHang WanXinhua XuAnbang LiTian YanWenjie GangHybrid ground-source heat pump system has been widely used for mitigating the heat accumulation problem of conventional ground-source heat pump systems. This article proposes a wet-bulb temperature-based control method for a hybrid ground-source heat pump system which comprises a ground-source heat pump and a conventional water-cooled chiller using a cooling tower. With this method, the operation priority between the ground-source heat pump and the water-cooled chiller is determined according to the outdoor wet-bulb temperature. A TRNSYS platform of the system is developed, and simulations are carried out to investigate the system performance under the proposed control method. Meanwhile, simulations with two other control methods (reference methods), that is, the ground-source heat pump–prioritized method and water-cooled chiller–prioritized method, are also conducted. The study results show that the proposed control method has obvious advantage in controlling the heat balance of the ground-source heat exchangers, and in the meantime, no more energy is consumed when compared with the two reference control methods.https://doi.org/10.1177/1687814017701705
spellingShingle Hang Wan
Xinhua Xu
Anbang Li
Tian Yan
Wenjie Gang
A wet-bulb temperature-based control method for controlling the heat balance of the ground soil of a hybrid ground-source heat pump system
Advances in Mechanical Engineering
title A wet-bulb temperature-based control method for controlling the heat balance of the ground soil of a hybrid ground-source heat pump system
title_full A wet-bulb temperature-based control method for controlling the heat balance of the ground soil of a hybrid ground-source heat pump system
title_fullStr A wet-bulb temperature-based control method for controlling the heat balance of the ground soil of a hybrid ground-source heat pump system
title_full_unstemmed A wet-bulb temperature-based control method for controlling the heat balance of the ground soil of a hybrid ground-source heat pump system
title_short A wet-bulb temperature-based control method for controlling the heat balance of the ground soil of a hybrid ground-source heat pump system
title_sort wet bulb temperature based control method for controlling the heat balance of the ground soil of a hybrid ground source heat pump system
url https://doi.org/10.1177/1687814017701705
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