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Experimental investigation of cost-effective ZnO nanofluid based spectral splitting CPV/T system
- Source :
- Energy. 194:116913
- Publication Year :
- 2020
- Publisher :
- Elsevier BV, 2020.
-
Abstract
- Nanofluid-based spectral splitting concentrating photovoltaic thermal (CPV/T) system enables photovoltaic (CPV) cells and thermal absorbers to operate at different temperatures and realizes the utilization of full-spectrum sunlight. It is important to find one kind of low cost nanofluid that can be applied to nanofluid-based spectral splitting CPV/T system. In this study, the feasibility of using cost-effective glycol-ZnO nanofluid in spectral splitting CPV/T system was experimentally verified. A two-axis sun-tracking nanofluid-based spectral splitting CPV/T system was designed and fabricated. The solar energy conversion efficiency correlation coefficient was utilized to compare the thermodynamic performance of glycol-ZnO nanofluid-based spectral splitting CPV/T system with those of water-polypyrrole and water-Ag-SiO2 nanofluid-based spectral splitting CPV/T system. The effects of ZnO nanoparticles concentration in glycol-ZnO nanofluid on thermal and electrical performances were investigated. The cost comparisons of different types of nanoparticles were also conducted. The results indicated that the correlation coefficient of glycol-ZnO nanofluid-based spectral splitting CPV/T system was 0.218 and 0.05 higher than those of water-polypyrrole and water-Ag-SiO2 nanofluid-based spectral splitting CPV/T system, respectively. The cost of ZnO nanoparticles was 0.13%, 0.08% and 0.17% of cost of Au, Ag and polypyrrole nanoparticles, respectively.
- Subjects :
- Materials science
Correlation coefficient
business.industry
020209 energy
Mechanical Engineering
Photovoltaic system
Nanoparticle
02 engineering and technology
Building and Construction
Solar energy
Pollution
Industrial and Manufacturing Engineering
General Energy
Nanofluid
020401 chemical engineering
Zno nanoparticles
Thermal
0202 electrical engineering, electronic engineering, information engineering
Radiative transfer
Optoelectronics
0204 chemical engineering
Electrical and Electronic Engineering
business
Civil and Structural Engineering
Subjects
Details
- ISSN :
- 03605442
- Volume :
- 194
- Database :
- OpenAIRE
- Journal :
- Energy
- Accession number :
- edsair.doi...........3575c90ef5c9fec4c617bb183fd5418b