Experimental prediction of total thermal resistance of a closed loop EAHE for greenhouse cooling system |
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| Authors: | Onder Ozgener Leyla OzgenerD Yogi Goswami |
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| Affiliation: | a Solar Energy Institute, Ege University, TR 35100, Bornova, Izmir, Turkeyb Department of Mechanical Engineering Faculty of Engineering, Celal Bayar University TR 45140, Muradiye, Manisa, Turkeyc Clean Energy Research Center, University of South Florida, 4202 E Fowler Avenue Tampa, FL 33620, USA |
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| Abstract: | The design of an earth to air heat exchanger (EAHE) requires knowledge of its total thermal resistance (RTot) for heating and cooling applications. In this research, a 47 m long horizontal, 56 cm nominal diameter U-bend buried galvanized was studied experimental EAHE used for the determination and evaluation of thermal properties of heat exchanger. This system was designed and installed in the Solar Energy Institute, Ege University, Izmir, Turkey. Based on the experimental results, generalized relationships were developed for predicting of thermal resistance of the heat exchanger. Average total heat exchanger thermal resistance was estimated to be 0.021 K-m/W as a constant value under steady state condition. |
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| Keywords: | EAHE Geothermal energy Renewables |
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