Thermo-hydraulic performance of a solar air heater with n-subcollectors in series and parallel configuration

In the present work, a thermo-hydraulic performance evaluation of the collector arrays (collector modules or subcollectors arranged in series, parallel or combined series and parallel mode) has been carried out using a mathematical model. Based on the performance evaluation criterion of an equal pumping power requirement, the configuration with n-subcollectors in parallel is found to be the best.