Impact a combination of geothermal and solar energy systems on building ventilation, heating and output power: Experimental study

Rania Elghamry and Hamdy Hassan

Renewable Energy, 2020, vol. 152, issue C, 1403-1413

Abstract: This paper presents an experimental investigation of building room heating and ventilation by using a combination of solar chimney and geothermal air tube heat exchanger. The geothermal tube is used to supply the room with fresh and heated air that is extracted inside the room by the chimney at the room top surface. Photovoltaic panel (PV) is installed inside the chimney to produce power and its performance is compared with PV installed outside the room. The system is studied for the chimney with and without PV and at inclination angle 30° and 45°. Natural ventilation and heating systems are compared with forced air flow inside the geothermal tube. The studied room locates in New Borge-Alarb, Alexandria, Egypt. Results indicate that natural geothermal tube-solar chimney at angle 45° raises the room temperature by 6.4 °C and changes daily its air 46 times which represents 55.5% of the ventilated air by the forced air flow at 0.0184 m3/s. Heated and ventilated air of the room at chimney at of an angle 45° with PV is greater than the case of 30°. Maximum PV power inside the chimney is obtained at 30° which represents 86.7% of the maximum PV power outside the chimney.

Keywords: Room; Heating and ventilation; Solar chimney; Geothermal air tube; Photovoltaic; Temperature (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:152:y:2020:i:c:p:1403-1413

DOI: 10.1016/j.renene.2020.01.107

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