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| Content Provider | Springer Nature Link |
|---|---|
| Author | Dong, Jian kai Jiang, Yi qiang Yao, Yang Zhang, Xue dan |
| Copyright Year | 2011 |
| Abstract | To solve the fundamental problem of insufficient heat available during defrosting while ensuring the efficient and safe system operation for air-source heat pumps (ASHPs). A novel reverse-cycle defrosting (NRCD) method based on thermal energy storage to eliminate frost off the outdoor coil surface was developed. Comparative experiments using both the stand reverse cycle defrosting (SRCD) method and the NRCD method were carried out on an experimental ASHP unit with a nominal 2.5 kW heating capacity. The results indicate that during defrosting operation, using the NRCD method improves discharge and suction pressures by 0.24 MPa and 0.19 MPa, respectively, shortens defrosting duration by 60%, and reduces the defrosting energy consumption by 48.1% in the experimental environment, compared with those by the use of SRCD method. Therefore, using the NRCD method can shorten the defrosting duration, improve the indoor thermal comfort, and reduce the defrosting energy consumption in defrosting. |
| Starting Page | 2163 |
| Ending Page | 2169 |
| Page Count | 7 |
| File Format | |
| ISSN | 10059784 |
| Journal | Journal of Central South University of Technology |
| Volume Number | 18 |
| Issue Number | 6 |
| e-ISSN | 19930666 |
| Language | English |
| Publisher | Central South University |
| Publisher Date | 2011-12-02 |
| Publisher Place | Heidelberg |
| Access Restriction | Subscribed |
| Subject Keyword | air source heat pump thermal energy storage phase change material reverse-cycle defrosting Engineering Metallic Materials |
| Content Type | Text |
| Resource Type | Article |
| Subject | Mechanics of Materials Materials Science Mechanical Engineering |
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