Based on the ventilated double-skin facade, an external photovoltaic blind ventilation window （PVBVW） has been proposed, making full use of the advantages of blinds and photovoltaic cells to achieve efficient heating, power generation, light regulation, and create a comfortable indoor lighting and thermal environment. A coupled optical-thermal-electrical simulation model of PVBVW system under summer condition was established using Design Builder and Energy Plus. Compared to a standard double-glazed window system, the impact of the PVBVW system on natural lighting and indoor thermal environment was analyzed, and its comprehensive energy consumption was predicted. The results shows that the daylighting of the PVBVW is weak, but the area within 2.0 m × 1.5 m closing to the external window can meet the requirements of natural daylighting and the comfort was better. The results of PMV research results indicats that the room of the PVBVW compared with that of the standard double-glazed window provides a more comfortable indoor thermal environment. The PVBVW system saves 33.90% of air conditioning energy consumption while generating 84.69 kWh of electricity during the summer season. Compared to the standard double-glazed window, the PVBVW system achieves comprehensive energy savings of 34.64%-56.48%, demonstrating a high energy-saving potential.
Key words
PV power generation /
ventilation /
daylighting /
glass curtain wall /
photovoltaic blind
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