First and second law analyses of a typical solar air dryer system: a case study |
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| Authors: | S. K. Tyagi V. V. Tyagi S. Anand V. Chandra R. C. Diwedi |
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| Affiliation: | 1. College of Engineering, Shri Mata Vaishno Devi University , Katra , 182320 , Jammu and Kashmir , India sudhirtyagi@yahoo.com;3. Solar Energy Centre, Ministry of New and Renewable Energy (MNRE) Gwal Pahari , Gurgaon , 122002 , India;4. College of Engineering, Shri Mata Vaishno Devi University , Katra , 182320 , Jammu and Kashmir , India |
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| Abstract: | This communication presents an experimental study based on energy and exergy analyses of a typical solar air dryer. On the basis of the experimental results, the first and the second law efficiencies are calculated with respect to the available solar radiation. It is found that the second law efficiency is much less than the first law efficiency irrespective of the mass flow rate of the circulating fluid. It is also found that both efficiencies are an increasing function with respect to the mass flow rate of the working fluid. For a particular day, it is also found that first and second law efficiencies fluctuate according to radiation. The results obtained in this article are found to be consistent with those obtained by earlier authors as given in the literature. |
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| Keywords: | solar air dryer exergy and energy analyses solar radiation second law efficiency |
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