Experimental Study on Characteristics of Energy Storage Defrosting and Conventional Defrosting for Cascade Air Source Heat Pump
Based on the frosting and defrosting problems of cascade air source heat pumps (CASHPs) during heating operation in the cold area in winter, a novel thermal energy storage CASHP defrosting system with a thermal accumulator is proposed. The defrosting performances of thermal energy storage defrosting...
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| Format: | Article |
| Language: | zho |
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Journal of Refrigeration Magazines Agency Co., Ltd.
2017-01-01
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| Series: | Zhileng xuebao |
| Subjects: | |
| Online Access: | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2017.01.034 |
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| author | Qu Minglu Li Tianrui Fan Yanan Wang Tan |
| author_facet | Qu Minglu Li Tianrui Fan Yanan Wang Tan |
| author_sort | Qu Minglu |
| collection | DOAJ |
| description | Based on the frosting and defrosting problems of cascade air source heat pumps (CASHPs) during heating operation in the cold area in winter, a novel thermal energy storage CASHP defrosting system with a thermal accumulator is proposed. The defrosting performances of thermal energy storage defrosting mode with intermittent heating and continuous heating were experimentally studied, and then the experimental results were compared with common used hot-gas bypass defrosting mode. It was found that in energy storage defrosting mode, the defrosting duration time and the energy consumption were reduced by 71.4%~77.6% and 65.1%~85.2% respectively compared with hot-gas bypass defrosting mode, and the system defrosting operation was more stable and reliable. |
| format | Article |
| id | doaj-art-e6d855b932c645978b14a23253b07f73 |
| institution | OA Journals |
| issn | 0253-4339 |
| language | zho |
| publishDate | 2017-01-01 |
| publisher | Journal of Refrigeration Magazines Agency Co., Ltd. |
| record_format | Article |
| series | Zhileng xuebao |
| spelling | doaj-art-e6d855b932c645978b14a23253b07f732025-08-20T02:02:19ZzhoJournal of Refrigeration Magazines Agency Co., Ltd.Zhileng xuebao0253-43392017-01-013866512075Experimental Study on Characteristics of Energy Storage Defrosting and Conventional Defrosting for Cascade Air Source Heat PumpQu MingluLi TianruiFan YananWang TanBased on the frosting and defrosting problems of cascade air source heat pumps (CASHPs) during heating operation in the cold area in winter, a novel thermal energy storage CASHP defrosting system with a thermal accumulator is proposed. The defrosting performances of thermal energy storage defrosting mode with intermittent heating and continuous heating were experimentally studied, and then the experimental results were compared with common used hot-gas bypass defrosting mode. It was found that in energy storage defrosting mode, the defrosting duration time and the energy consumption were reduced by 71.4%~77.6% and 65.1%~85.2% respectively compared with hot-gas bypass defrosting mode, and the system defrosting operation was more stable and reliable.http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2017.01.034air source heat pumpcascade cycledefrostingthermal accumulator |
| spellingShingle | Qu Minglu Li Tianrui Fan Yanan Wang Tan Experimental Study on Characteristics of Energy Storage Defrosting and Conventional Defrosting for Cascade Air Source Heat Pump Zhileng xuebao air source heat pump cascade cycle defrosting thermal accumulator |
| title | Experimental Study on Characteristics of Energy Storage Defrosting and Conventional Defrosting for Cascade Air Source Heat Pump |
| title_full | Experimental Study on Characteristics of Energy Storage Defrosting and Conventional Defrosting for Cascade Air Source Heat Pump |
| title_fullStr | Experimental Study on Characteristics of Energy Storage Defrosting and Conventional Defrosting for Cascade Air Source Heat Pump |
| title_full_unstemmed | Experimental Study on Characteristics of Energy Storage Defrosting and Conventional Defrosting for Cascade Air Source Heat Pump |
| title_short | Experimental Study on Characteristics of Energy Storage Defrosting and Conventional Defrosting for Cascade Air Source Heat Pump |
| title_sort | experimental study on characteristics of energy storage defrosting and conventional defrosting for cascade air source heat pump |
| topic | air source heat pump cascade cycle defrosting thermal accumulator |
| url | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2017.01.034 |
| work_keys_str_mv | AT quminglu experimentalstudyoncharacteristicsofenergystoragedefrostingandconventionaldefrostingforcascadeairsourceheatpump AT litianrui experimentalstudyoncharacteristicsofenergystoragedefrostingandconventionaldefrostingforcascadeairsourceheatpump AT fanyanan experimentalstudyoncharacteristicsofenergystoragedefrostingandconventionaldefrostingforcascadeairsourceheatpump AT wangtan experimentalstudyoncharacteristicsofenergystoragedefrostingandconventionaldefrostingforcascadeairsourceheatpump |