Abstract
This paper developed a dynamic hot gas defrosting model of air source heat pump. The model is based on distributed parameters of out side heat exchanger fin-tube surface temperature which was measured in a hot gas defrosting experimental process. Through solving the model, the defrosting characteristics of outside heat exchanger surface water vaporizing, the mass of vaporized water and the heat quantity of vaporizing and dry heating can be obtained. The method of combination of experimental parameters with computer simulation need not consider the heat exchange inside the fin-tube, which simplifies the calculation and ensures the reliability and precision of the model.
| Original language | English |
|---|---|
| Pages (from-to) | 989-992 |
| Number of pages | 4 |
| Journal | Shanghai Jiaotong Daxue Xuebao/Journal of Shanghai Jiaotong University |
| Volume | 42 |
| Issue number | 6 |
| State | Published - Jun 2008 |
Keywords
- Air source heat pump
- Defrosting
- Experimental parameters
- Model
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