Numerical Study for Concentrated Photovoltaic Performance at Low Concentration Ratio | ||
| Engineering Research Journal | ||
| Article 20, Volume 163, Issue 0, September 2019, Pages 343-366 PDF (770.27 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/erj.2019.122643 | ||
| Authors | ||
| abd el nomam A. Harba* 1; Khairy Elsayedb2; M. Sedrak3 | ||
| 1Teaching Assistant, Department of Mechanical Power Engineering, Faculty of Engineering at El-Mattaria, Helwan University, Masaken El-Helmia P.O., Cairo 11718, Egypt. | ||
| 2Associate Professor, Department of Mechanical Power Engineering, Faculty of Engineering at El-Mattaria, Helwan University, Masaken El-Helmia P.O., Cairo 11718, Egypt. | ||
| 3Professor, Department of Mechanical Power Engineering, Faculty of Engineering at ElMattaria, Helwan University, Masaken El-Helmia P.O., Cairo 11718, Egypt. | ||
| Abstract | ||
| Concentrating photovoltaic (CPV) is an alternative technique used to convert the solar energy to electrical energy. CPV is used in lieu of the photovoltaic system (PV) due to its smaller semiconductor area and consequently lower cost. The study of fluid flow and thermal characteristics for a CPV integrated with a three dimensional (3D) rectangular shaped microchannel heat sink (MCHS) is numerically investigated. Laminar and steady flow of water as a coolant is used at the present study. The flow and thermal fields are analyzed using four channel number (N) (26, 52, 78 and 104), concentration ratio (CR) from 1 to 20 and Reynolds number (Re) from 100 to 1000. The evaluating parameters such as temperature, the electrical efficiency and the electrical power are obtained from the simulation. Results show that increasing the channel number over N equals 52 leads to a slight decrease in the cell temperature while the design of 26 channels achieves less cell temperature. As the concentration ratio increases, the cell efficiency decreases due to increase of the temperature while the electrical power increases. Increasing Re provides a negligible enhancement in the cell efficiency and consequently a slight increase in the electric power. | ||
| Keywords | ||
| Concentrator photovoltaic; Microchannels; Heat sink; Numerical study; concentration ratio | ||
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