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Design and fabrication of a cost effective solar air heater for Bangladesh

Author

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  • Wazed, M.A.
  • Nukman, Y.
  • Islam, M.T.

Abstract

In this research, a solar air heater is designed, fabricated and its performance is assessed in the perspective of an emerging/developing country with a huge energy demand like Bangladesh. The winter season (mid-November-mid-February) of the country characterizes by low temperatures, cool air blowing from the west or northwest, clear sky and meager rainfall. Minimum temperature in the extreme northwest in late December and early January sometimes reaches 3 °C and day length is about 10 h. The shortness of winter days can be compensated by reducing the heat loss during long nights. The solar air heater is constructed to prevent as much heat loss as possible. In other words, the heating of air is accomplished by maximizing light gain and minimizing heat loss. It is observed that the fabricated solar air heater is working efficiently. The maximum room temperature and the temperature difference from ambient are 45.5 °C and 12.25 °C for forced circulation and 41.75 °C and 8.5 °C for natural circulation respectively. The experimental outlet temperatures have been compared with that of theoretical values. Due to its low-cost and simple technology, it is affordable in all aspects, viz. of cost, operation and maintenance by the typical people of Bangladesh.

Suggested Citation

  • Wazed, M.A. & Nukman, Y. & Islam, M.T., 2010. "Design and fabrication of a cost effective solar air heater for Bangladesh," Applied Energy, Elsevier, vol. 87(10), pages 3030-3036, October.
    • Handle: RePEc:eee:appene:v:87:y:2010:i:10:p:3030-3036
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    5. Nadda, Rahul & Kumar, Anil & Maithani, Rajesh, 2018. "Efficiency improvement of solar photovoltaic/solar air collectors by using impingement jets: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 93(C), pages 331-353.
    6. Kannan, Nadarajah & Vakeesan, Divagar, 2016. "Solar energy for future world: - A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 62(C), pages 1092-1105.
    7. Singh, Sukhmeet & Chander, Subhash & Saini, J.S., 2012. "Investigations on thermo-hydraulic performance due to flow-attack-angle in V-down rib with gap in a rectangular duct of solar air heater," Applied Energy, Elsevier, vol. 97(C), pages 907-912.
    8. Md. Abdullah-Al-Mahbub & Abu Reza Md. Towfiqul Islam & Hussein Almohamad & Ahmed Abdullah Al Dughairi & Motrih Al-Mutiry & Hazem Ghassan Abdo, 2022. "Different Forms of Solar Energy Progress: The Fast-Growing Eco-Friendly Energy Source in Bangladesh for a Sustainable Future," Energies, MDPI, vol. 15(18), pages 1-28, September.
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    12. Tyagi, V.V. & Panwar, N.L. & Rahim, N.A. & Kothari, Richa, 2012. "Review on solar air heating system with and without thermal energy storage system," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(4), pages 2289-2303.
    13. Oztop, Hakan F. & Bayrak, Fatih & Hepbasli, Arif, 2013. "Energetic and exergetic aspects of solar air heating (solar collector) systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 21(C), pages 59-83.
    14. Kalaiarasi, G. & Velraj, R. & Vanjeswaran, M.N. & Ganesh Pandian, N., 2020. "Experimental analysis and comparison of flat plate solar air heater with and without integrated sensible heat storage," Renewable Energy, Elsevier, vol. 150(C), pages 255-265.
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