Journal
ENERGY
Volume 225, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.energy.2021.120219
Keywords
Photovoltaic; PVT; Carbon black; Nanofluid; Exergy
Categories
Ask authors/readers for more resources
This study investigated the use of carbon black nanoparticles in water as a coolant for photovoltaic modules, finding that a concentration of 0.21 wt% of carbon black nanoparticles showed the best cooling performance, resulting in a 7% increase in output power compared to pure water coolant.
Nowadays, photovoltaic technology has been recognized as a popular energy source in most parts of the world. The temperature rise in photovoltaic cells is one of the major weak points of this technology which impacts on its electricity generation. Using nanofluid circulation as the coolant of photovoltaic modules, is one of the methods concerned by scholars. In this paper, using carbon black nano particles in water was investigated experimentally, and the concentration range of 0-0.4 wt% were tested. Results showed an unexpected cooling behavior of carbon black/water nanofluid. So that, the concentration of 0.21 wt% was found to be the best case. This concentration led to produce 7% more output power in comparison with pure water as coolant and 54% more output power in compare with the conventional photovoltaic module. In order to precisely calculate the electrical energy efficiency, the consumed pumping power was considered, too. The exergy assessment is another investigated matter in this paper and a modified method for exergy efficiency calculation is presented. Accordingly, the overall exergy efficiency rises 15.2% and the entropy generation depresses 1.4% compared with the conventional module, for the best case. (c) 2021 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available