Study on the Defrosting Control Method Based on the Optimal Average Performance of an Air Source Heat Pump
A defrosting control method based on the optimal average performance of an air source heat pump (ASHP) unit is presented. The deterioration point of an ASHP unit is selected as the defrosting initiation criterion. To verify the feasibility and applicability of the defrosting control method based on...
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| Format: | Article |
| Language: | zho |
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Journal of Refrigeration Magazines Agency Co., Ltd.
2016-01-01
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| Series: | Zhileng xuebao |
| Subjects: | |
| Online Access: | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2016.03.017 |
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| _version_ | 1850232850073255936 |
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| author | Xing Zhen Guo Xianmin Li Jingshan |
| author_facet | Xing Zhen Guo Xianmin Li Jingshan |
| author_sort | Xing Zhen |
| collection | DOAJ |
| description | A defrosting control method based on the optimal average performance of an air source heat pump (ASHP) unit is presented. The deterioration point of an ASHP unit is selected as the defrosting initiation criterion. To verify the feasibility and applicability of the defrosting control method based on the optimal average performance, a test apparatus was established in the psychrometric rooms and the defrosting characteristics of an ASHP unit was investigated experimentally for four different defrosting initiation criteria under different frosting conditions. The frost thickness on the fins, the transient input power and heating capacity were measured. Based on the experimental results, the total heating capacity, total power consumption in the whole frosting/defrosting cycles and average COP of the ASHP unit were analyzed. The experimental results indicated that when the deterioration point of the ASHP unit is selected as the defrosting initiation criterion, the average COP in the whole frosting/defrosting cycles is the maximum, which confirmed that this defrosting initiation criterion is feasible and can be used for the optimal defrosting control of an ASHP unit. |
| format | Article |
| id | doaj-art-59b2c442b0f0426f8c90fe4b89ab1002 |
| institution | OA Journals |
| issn | 0253-4339 |
| language | zho |
| publishDate | 2016-01-01 |
| publisher | Journal of Refrigeration Magazines Agency Co., Ltd. |
| record_format | Article |
| series | Zhileng xuebao |
| spelling | doaj-art-59b2c442b0f0426f8c90fe4b89ab10022025-08-20T02:03:04ZzhoJournal of Refrigeration Magazines Agency Co., Ltd.Zhileng xuebao0253-43392016-01-013766517119Study on the Defrosting Control Method Based on the Optimal Average Performance of an Air Source Heat PumpXing ZhenGuo XianminLi JingshanA defrosting control method based on the optimal average performance of an air source heat pump (ASHP) unit is presented. The deterioration point of an ASHP unit is selected as the defrosting initiation criterion. To verify the feasibility and applicability of the defrosting control method based on the optimal average performance, a test apparatus was established in the psychrometric rooms and the defrosting characteristics of an ASHP unit was investigated experimentally for four different defrosting initiation criteria under different frosting conditions. The frost thickness on the fins, the transient input power and heating capacity were measured. Based on the experimental results, the total heating capacity, total power consumption in the whole frosting/defrosting cycles and average COP of the ASHP unit were analyzed. The experimental results indicated that when the deterioration point of the ASHP unit is selected as the defrosting initiation criterion, the average COP in the whole frosting/defrosting cycles is the maximum, which confirmed that this defrosting initiation criterion is feasible and can be used for the optimal defrosting control of an ASHP unit.http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2016.03.017air source heat pumpdefrosting experimentsdefrosting criterionoptimum defrosting initiation criterion |
| spellingShingle | Xing Zhen Guo Xianmin Li Jingshan Study on the Defrosting Control Method Based on the Optimal Average Performance of an Air Source Heat Pump Zhileng xuebao air source heat pump defrosting experiments defrosting criterion optimum defrosting initiation criterion |
| title | Study on the Defrosting Control Method Based on the Optimal Average Performance of an Air Source Heat Pump |
| title_full | Study on the Defrosting Control Method Based on the Optimal Average Performance of an Air Source Heat Pump |
| title_fullStr | Study on the Defrosting Control Method Based on the Optimal Average Performance of an Air Source Heat Pump |
| title_full_unstemmed | Study on the Defrosting Control Method Based on the Optimal Average Performance of an Air Source Heat Pump |
| title_short | Study on the Defrosting Control Method Based on the Optimal Average Performance of an Air Source Heat Pump |
| title_sort | study on the defrosting control method based on the optimal average performance of an air source heat pump |
| topic | air source heat pump defrosting experiments defrosting criterion optimum defrosting initiation criterion |
| url | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2016.03.017 |
| work_keys_str_mv | AT xingzhen studyonthedefrostingcontrolmethodbasedontheoptimalaverageperformanceofanairsourceheatpump AT guoxianmin studyonthedefrostingcontrolmethodbasedontheoptimalaverageperformanceofanairsourceheatpump AT lijingshan studyonthedefrostingcontrolmethodbasedontheoptimalaverageperformanceofanairsourceheatpump |