Optimization and Performance Characteristics of Building Integrated Photovoltaic Thermal (BIPVT) System in Cold Climatic Conditions
Building integrated photovoltaic thermal (BIPVT) system has the potential to become a major source of renewable energy in the urban environment. In this paper, roof top has been used as the system of a building to generate higher electrical energy per unit area and to produce necessary thermal energy required for space heating. A model has been developed using basic heat transfer equations. On the basis of this model, an analysis has been carried out specifically for Indian climatic condition of Srinagar, in order to select an appropriate BIPVT system. The PV performances, electrical and thermal efficiencies, net energy gain and exergy of the building are determined. The results show that the electrical efficiency and overall exergy has been increased for the same system which was discussed earlier by changing the design parameters of the system such as velocity of air, room size, number of rows of cells etc. and other affected parameters. The electrical efficiency has been increased to
17.17% from previously 16% and overall exergy to 18.4% from previously 17.1% i.e. an overall growth of 6.8% and 7.6% respectively. Optimization of overall exergy w.r.t velocity of air and thermal coefficient has been analyzed.
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