May 24, 2024
Shoaib Khanmohammadi

Shoaib Khanmohammadi

Academic rank: Associate professor
Address: Department of Mechanical Engineering, Kermanshah University of Technology, Kermanshah, Iran
Education: Ph.D in Mechanical Engineering
Phone: 0833-8305001
Faculty: Faculty of Engineering


Comparison of the performance of different designs of a combined system consisting of a photovoltaic thermal unit and a sensible rotary heat exchanger
Type Article
Building integrated photovoltaic thermal system Energy Analysis Exhaust air heat recovery unit Exergy analysis Thermal wheel
Researchers Shoaib Khanmohammadi، Amin Shahsavar Goldanloo


Steady-state energy and exergy evaluation are performed on two designs of a hybrid building integrated photovoltaic thermal (BPT) unit and a thermal wheel (SRX). The working principles of these designs in summer are similar such that the warm outside air is precooled by exchanging heat with air coming out of the building in SRX and then enters the building. Also, other outlet air from SRX passes through the BPT unit and cools PV modules, boosting their efficiency. The working principle of the design A in winter are that the outside air is preheated by receiving heat from the building exhaust air in SRX and then preheated again by passing through the BPT system. The design B works in the same way in winter, with the air passing through the BPT system first and then the SRX. The outcomes revealed that the annual total rate of thermal energy, electrical energy and thermal exergy outputs of the design A are 23183.4 kW h, 5994 kW h, 261.6 kW h, respectively, while these values for the design B are respectively 22785.2 kW h, 6030. 6 kW h and 243 kW h. In addition, it was found that the overall energy/exergy performance of design A is better/worse than design B.