This subpackage contains four validation models for the electrical performance of the PVT_UI collector, aligned with the same four ISO 9806:2013 day types used in the Thermal subpackage.
Each model compares simulated and measured electrical output and computes the absorber-to-fluid heat transfer coefficient UAbsFluid using a datasheet-based method (Meertens et al., 2025).
The electrical model is based on the PVWatts V5 formulation and includes:
The PV cell temperature is derived from the thermal model using a two-node coupling via UAbsFluid. This coupling ensures accurate representation of the thermal-electrical interaction.
Validation results show excellent agreement across all day types, with normalized MAE and RMSE values below 3.1% (Meertens et al., 2025). The model is robust to variations in UAbsFluid, confirming the reliability of the datasheet-based estimation.
| Name | Description |
|---|---|
| PVT_UI_Electrical_DayType1 | Test model for Unglazed Rear-Insulated PVT Collector |
| PVT_UI_Electrical_DayType2 | Test model for Unglazed Rear-Insulated PVT Collector |
| PVT_UI_Electrical_DayType3 | Test model for Unglazed Rear-Insulated PVT Collector |
| PVT_UI_Electrical_DayType4 | Test model for Unglazed Rear-Insulated PVT Collector |