Energy-Saving Optimization Strategy Research for Chilled Water Units Based on Active Water Storage
An energy-saving optimization operation strategy based on maintaining the high-energy-efficiency operation of chillers is proposed to address the prevalent issue of increased energy consumption in the application of cold-storage technology for economic optimization in the current air-conditioning in...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
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Journal of Refrigeration Magazines Agency Co., Ltd.
2025-02-01
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| Series: | Zhileng xuebao |
| Subjects: | |
| Online Access: | http://www.zhilengxuebao.com/thesisDetails#10.12465/j.issn.0253-4339.2025.01.108 |
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| _version_ | 1850071710173233152 |
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| author | Huang Junjie Liang Caihua He Hui Bai Xi Mao Yubo Tang Qi |
| author_facet | Huang Junjie Liang Caihua He Hui Bai Xi Mao Yubo Tang Qi |
| author_sort | Huang Junjie |
| collection | DOAJ |
| description | An energy-saving optimization operation strategy based on maintaining the high-energy-efficiency operation of chillers is proposed to address the prevalent issue of increased energy consumption in the application of cold-storage technology for economic optimization in the current air-conditioning industry. This strategy involves the storage and release of cooling using small cold-storage tanks to actively control the load ratio of the water chiller, thus ensuring that the unit operates efficiently for an extended period to achieve energy savings. A physical model of the air-conditioning system is established and simulated using operational data from the central air-conditioning system of a hospital. Performance curves of the water chiller under different environmental conditions are obtained to accurately depict the high-efficiency operational states of the unit at each moment. On a typical day with a peak cooling load of 9 979 kW, using an active chilled-water storage system, as compared with using the conventional chiller operation strategy without active storage, can reduce 2 777 kW·h of daily electricity consumption, which constitutes 6.0% of the daily electricity usage of the central air-conditioning system. Over the entire cooling season, this approach can save 2.35% of the total electricity consumption of the central air-conditioning system and 4.45% of the electricity consumption of the chiller. |
| format | Article |
| id | doaj-art-f3c4b94e5fb74b45af350c5122c3698d |
| institution | DOAJ |
| issn | 0253-4339 |
| language | zho |
| publishDate | 2025-02-01 |
| publisher | Journal of Refrigeration Magazines Agency Co., Ltd. |
| record_format | Article |
| series | Zhileng xuebao |
| spelling | doaj-art-f3c4b94e5fb74b45af350c5122c3698d2025-08-20T02:47:14ZzhoJournal of Refrigeration Magazines Agency Co., Ltd.Zhileng xuebao0253-43392025-02-014610811581652564Energy-Saving Optimization Strategy Research for Chilled Water Units Based on Active Water StorageHuang JunjieLiang CaihuaHe HuiBai XiMao YuboTang QiAn energy-saving optimization operation strategy based on maintaining the high-energy-efficiency operation of chillers is proposed to address the prevalent issue of increased energy consumption in the application of cold-storage technology for economic optimization in the current air-conditioning industry. This strategy involves the storage and release of cooling using small cold-storage tanks to actively control the load ratio of the water chiller, thus ensuring that the unit operates efficiently for an extended period to achieve energy savings. A physical model of the air-conditioning system is established and simulated using operational data from the central air-conditioning system of a hospital. Performance curves of the water chiller under different environmental conditions are obtained to accurately depict the high-efficiency operational states of the unit at each moment. On a typical day with a peak cooling load of 9 979 kW, using an active chilled-water storage system, as compared with using the conventional chiller operation strategy without active storage, can reduce 2 777 kW·h of daily electricity consumption, which constitutes 6.0% of the daily electricity usage of the central air-conditioning system. Over the entire cooling season, this approach can save 2.35% of the total electricity consumption of the central air-conditioning system and 4.45% of the electricity consumption of the chiller.http://www.zhilengxuebao.com/thesisDetails#10.12465/j.issn.0253-4339.2025.01.108load distributionwater thermal storagechiller sequencing controlenergy-saving operation strategy |
| spellingShingle | Huang Junjie Liang Caihua He Hui Bai Xi Mao Yubo Tang Qi Energy-Saving Optimization Strategy Research for Chilled Water Units Based on Active Water Storage Zhileng xuebao load distribution water thermal storage chiller sequencing control energy-saving operation strategy |
| title | Energy-Saving Optimization Strategy Research for Chilled Water Units Based on Active Water Storage |
| title_full | Energy-Saving Optimization Strategy Research for Chilled Water Units Based on Active Water Storage |
| title_fullStr | Energy-Saving Optimization Strategy Research for Chilled Water Units Based on Active Water Storage |
| title_full_unstemmed | Energy-Saving Optimization Strategy Research for Chilled Water Units Based on Active Water Storage |
| title_short | Energy-Saving Optimization Strategy Research for Chilled Water Units Based on Active Water Storage |
| title_sort | energy saving optimization strategy research for chilled water units based on active water storage |
| topic | load distribution water thermal storage chiller sequencing control energy-saving operation strategy |
| url | http://www.zhilengxuebao.com/thesisDetails#10.12465/j.issn.0253-4339.2025.01.108 |
| work_keys_str_mv | AT huangjunjie energysavingoptimizationstrategyresearchforchilledwaterunitsbasedonactivewaterstorage AT liangcaihua energysavingoptimizationstrategyresearchforchilledwaterunitsbasedonactivewaterstorage AT hehui energysavingoptimizationstrategyresearchforchilledwaterunitsbasedonactivewaterstorage AT baixi energysavingoptimizationstrategyresearchforchilledwaterunitsbasedonactivewaterstorage AT maoyubo energysavingoptimizationstrategyresearchforchilledwaterunitsbasedonactivewaterstorage AT tangqi energysavingoptimizationstrategyresearchforchilledwaterunitsbasedonactivewaterstorage |