Research Article
Dynamic Heating System of Multiphase Flow Digester by Solar-Untreated Sewage Source Heat Pump
Table 4
Recommended data for the solar fractions in Sichuan Province.
| | Resource division | Rank | Solar fraction |
| | Solar energy resource-rich areas | I | >70% | | Solar energy resource-rich areas | II | 50%~70% | | General-solar energy resource areas | III | 30%~50% | | Solar energy resource-poor areas | IV | 10%~30% |
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