Research Article
Dynamic Heating System of Multiphase Flow Digester by Solar-Untreated Sewage Source Heat Pump
Table 5
Basic values of the parameters for the sewage double-pipe heat exchanger.
| Parameter | Unit | Value | |
| Inner pipe radius | mm | 23 | | Outer pipe radius | mm | 39 | Thickness of inner pipe wall | mm | 2 | Thickness of outer pipe wall | mm | 3 | Average inlet/outlet temperature of chilled water | K | 280.15/285.15 |
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