New Design of Solar Photovoltaic and Thermal Hybrid System for Performance Improvement of Solar Photovoltaic

Ridwone Hossain,Preetom Debnath,Abbas Z Kouzani,Sheik Md Kazi Nazrul Islam,M A Parvez Mahmud,Al Jumlat Ahmed,Nirupam Saha

doi:10.1155/2020/8825489

Abstract

Solar photovoltaic (PV) and solar thermal systems are most widely used renewable energy technologies. Theoretical study indicates that the energy conversion efficiency of solar photovoltaic gets reduced about 0.3% when its temperature increases by 1°C. In this regard, solar PV and thermal (PVT) hybrid systems could be a solution to draw extra heat from the solar PV panel to improve its performance by reducing its temperature. Here, we have designed a new type of heat exchanger for solar PV and thermal (PVT) hybrid systems and have studied the performance of the system. The PVT system has been investigated in comparison with an identical solar PV panel at outdoor condition at Dhaka, Bangladesh. The experiments show that the average improvement of open circuit voltage (Voc) is 0.97 V and the highest improvement of Voc is 1.3 V. In addition, the overall improvement of output power of solar PV panel is 2.5 W.

Highlights

Solar photovoltaic (PV) and solar thermal systems are among the most widely used renewable energy technologies
Temperature of air at intel and outlet of the PV and thermal (PVT) system, open circuit voltage, and short circuit current readings of the systems have been taken in every 10 min interval
It indicates that the heat is effectively transferred from the PVT system to the air when the air is circulating through the channels of the heat exchanger

Summary

Introduction

Solar photovoltaic (PV) and solar thermal systems are among the most widely used renewable energy technologies. Three different designs like V-groove, honeycomb, and stainless steel wool have been installed horizontally into the channel located at the back side of a solar PV panel to improve performance of the PV panel [10] In another case, 12 units of rectangular tunnel have been installed parallel at the back side of a solar PV panel as a heat exchanger to improve the efficiency of the system [1, 11]. The study shows that the nanofluid/nanophase change material- (PCM-) based system enhances both the electrical and thermal efficiency. Solar PV and thermal (PVT system) and normal solar PV panel (normal system), have been examined simultaneously at outdoor conditions

Materials and Method

Results and Discussion

Conclusions

Conflicts of Interest