《Table 3 Number of TJ cells and sizing of the point-focus and linear focus CPV/T systems as function

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《Thermal and Electrical Modelling of a CPV/T System Varying Its Configuration》

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A PF system with C values equal to 100×，300×，500×，700×and 900×，has been analyzed for both users；as for the LF system the C values considered are 50×，100×，120×and 150×.The PF and LF systems，compared under the same conditions in terms of energy loads，have given significantly different results in terms of size，number of cells and costs.As for the residential user the configurations analyzed are with C equal to 300×in the PF case，and C equal to 100×in the LF case.As for the hotel the configurations are with C value equal to 500×in the PF case，and C equal to 100×in the LF case.For both the users considered in this paper，some specific configurations have been considered because they present the highest technical feasibility.In particular，referring to the PF configuration if the concentration factor increases，the accuracy of the acceptance angle gets worse and the precision of the solar radiation concentration could vary；hence，the C values chosen are more realistic and also experimentally tested[27].On the contrary，as for the linear focus configuration，the theoretical limit is slightly above 200×，but a more realistic value is about 100×.In Tables 2 and 3 it is possible to observe for the residential and hotel users that the number of cells and the total dimension of the CPV/T system vary with C for both LF and PF configurations.