Performance study and economic analysis of photo-voltaic thermal system under real-life thermal loads in tropical climate

Abstract

The paper describes the implementation of a photo-voltaic thermal (PVT) system for a student hostel located in Singapore to cater for hot water requirements of the hostel and a part of electricity requirement. Real-time data monitoring was carried out by extensive instrumentation and data logging. Two different types of PVT collectors (glazed and unglazed) were used. Experimental results of performance of the individual collector arrays (thermal and photo-voltaic efficiency) along with the system overall efficiency are reported for a one-year period. Finally, an economic analysis of a typical PVT system for tropical climates is carried out and results are presented in the form of internal rate of return, net present value and payback period. PVT appears as a favourable technology in space starved areas like urban cities. © The Author(s).