Preparation, Characterization and Evaluation of Thermal Efficacy of Nano carbon–MnO2 Coated Solar Absorber

P. Jeyasankar¹ , R.V. Jeba Rajasekhar²

1. Department of Physics, Vivekananda College, Tiruvedakam West, Madurai,India.
2. PG and Research Department of Physics, Government Arts College, Melur, India.

Section:Research Paper, Product Type: Isroset-Journal
Vol.6 , Issue.2 , pp.52-54, Apr-2018

CrossRef-DOI:   https://doi.org/10.26438/ijsrpas/v6i2.5254

Online published on Apr 30, 2018

Copyright © P. Jeyasankar, R.V. Jeba Rajasekhar . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
The development of nanostructured solar absorbers and their utilization in applied solar devices are the need of the hour and hence the present research. The research results revealed that nano carbon and MnO2 coated absorbers could be developed by spray coating method. The research results also revealed that the crystallite sizes in the coatings of carbon and MnO2 based absorbers were in nano ranges. The observation on research results revealed that the thermal durability and thermal efficacy of the nano carbon and MnO2 coated absorbers (in 70:30 ratio) were acceptable in connection with their utilization in the solar collectors. As the thermal durability and efficacy of nano carbon and MnO2 coated absorbers were acceptable, it could be concluded that nano carbon and MnO2 coated absorbers would be integrated in solar collectors so as to improve their thermal performances.

Key-Words / Index Term :
Solar absorbers-Nano carbon and MnO2 based coating-Preparation-Characterization-Thermal durability-Thermal enhancement on absorbers.

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