Experimental and Theoretical Performance Evaluation of Parabolic trough Mirror as Solar Thermal Concentrator to Thermoelectric Generators

Authors

  • Saim Memon Solar Thermal Vacuum Engineering Research Group, London Centre for Energy Engineering, School of Engineering, London South Bank University, 103 Borough Road, SE1 0AA, London, UK
  • Maekele Mihreteab Solar Thermal Vacuum Engineering Research Group, London Centre for Energy Engineering, School of Engineering, London South Bank University, 103 Borough Road, SE1 0AA, London, UK
  • Takao Katsura Division of Human Environmental Systems, Faculty of Engineering, Hokkaido University, Sapporo, Japan
  • Ali Radwan Mechanical Power Engineering Department, Faculty of Engineering, Mansoura University, El Mansoura 35516, Egypt
  • Shanwen Zhang College of Mechanical Engineering, Yangzhou University, Yangzhou 225127, China
  • Ahmed A. Serageldin Mechanical Power Engineering Department, Faculty of Engineering, Mansoura University, El Mansoura 35516, Egypt
  • Essam M. Abo-Zahhad Mechanical Power Engineering Department, Faculty of Energy Engineering, Aswan University, Aswan 81528, Egypt

DOI:

https://doi.org/10.37934/stve.1.1.2238

Keywords:

Solar Thermal Energy, Thermoelectrics, Waste Heat Recovery, Parabolic Trough Mirror, Electrical Performance

Abstract

This paper presents the prospects of harnessing radiative heat from the sun with a parabolic trough mirror, as a solar thermal concentrator, in comparison to the mathematical model and experimental quartz-halogen concentrator model for the electrical energy conversion utilizing thermoelectric generators (TEG). The construction and design of TEG-setup along with Parabolic trough mirrors and quartz-halogen lamps are presented. The Parabolic trough mirror used as a focal point at a distance of 19.05 cm. With eight quartz-halogen concentrated heat, the maximum performance achieved at ?T of 11.8 K, Voc of 292 mV and Isc of 95.8 mA, recorded at the concentrated hot-side surface temperature of 317.8 K. When compared to the natural solar concentrated heat, higher temperature of 473.15 K at the hot-side surface temperature of TG was achieved. It is concluded that the heat concentration of the parabolic mirror increases with an increase in the intensity of heat using natural solar radiations. The Voc of 1.76 V and Isc of 1.1 A at a temperature difference of 110 K were measured, which are in good agreement with validated mathematical results. The parabolic through mirror utilized is smaller in size and thus collected lesser sun rays than the larger dish style mirror, and hence the heat in the focal point was very low, for better results, parabolic trough mirror with higher surface area would be important for future experiments.

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Published

2020-06-15

How to Cite

Memon, S., Mihreteab, M., Katsura, T., Radwan, A., Zhang, S., Serageldin, A. A., & Abo-Zahhad, E. M. (2020). Experimental and Theoretical Performance Evaluation of Parabolic trough Mirror as Solar Thermal Concentrator to Thermoelectric Generators. International Journal of Solar Thermal Vacuum Engineering, 1(1), 23–38. https://doi.org/10.37934/stve.1.1.2238
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Issue

Vol. 1 No. 1: June (2020)

Section

Research Articles
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