Research Article
Performance Analysis of Photovoltaic Water Heating System
Table 4
Main parameters of solar photothermal collectors used in analysis.
| Parameter | Value |
| Zero-loss efficiency η0 [−] | 0.79 | Linear heat loss coefficient a1 [W/m2K] | 4.0 | Quadratic heat loss coefficient a2 [W/m2K2] | 0.015 | Incidence angle modifier for 50° IAM50 | 0.95 |
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