Praktiska och Ekonomiska förutsättningar för Solarblinds : En preliminär studie av en Solarblinds prototyp baserad på de praktiska och ekonomiska perspektivet.

Sammanfattning

This study addresses the use of a Solar blind system (SBS) instead of ordinary glass used on windows of buildings. To investigate the effects of using an SBS for electricity energy generation a fictitious wooden house as a prototype, a real building needed to be constructed. The purpose of experimental studies is to measure the effect and asses the performance by examining the optimal angle of inclination and evaluating the profitability of SBS. To calculate the electricity energy generation by it is then expected that general renovations of a building will be used in the system. To perform the different scenario for each inclination angle, the simulation software PVsyst was used where the measurements are validated according to the simulation results to confirm that models are suitable and which inclination angles produced the most electricity. After the validation process, a financial assessment, and an annual electricity production of the system for a fictitious building where SBS is applied were performed. The result for the annual electricity production at different angles of inclination turned out to be 2457 kWh/year at 30, 2235 kWh/year at 60 and 1781 kWh/year at 90 . The optimal angle of inclination was 30 , which also has the highest electricity production compared to the other angles. Electricity production does not differ much with the inclination angle of 60. The simulation for the annual electricity production was examined for ten windows in opposite directions. The investment cost for the use of SBS was extraordinarily high, landing at 28,120 SEK/kW. The reason for this high investment cost is that it includes high material costs and that the area for SBS systems is low, which is 1,696 m². The reason is that the low area in m² leads to a lower electricity generation and the higher the area m² leads to higher electricity generation, which turns into affecting the profitability and electricity production.