| Autor: |
Yadav, Siddhita, Saini, R. P., Gao, Xiao-Zhi, Ghadai, Ranjan Kumar, Kalita, Kana, Shivakoti, Ishwer, Kilickap, Erol, Kundu, Tanmoy, Das, Soham |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2020, Vol. 2273 Issue 1, p1-7, 7p |
| Abstrakt: |
Depletion of fossil fuel and increasing carbon footprint is creating a threat to the environment. Renewable energy resources are the best alternative to fossil fuels for fulfilling energy demand without creating pollution. Solar energy is one of the option to fulfill the requirement like Building heating, crop drying. Solar air heater is the simplest device to utilize solar energy. In this study thermal behaviour of solar air heater with jet impingement technique (SAHJI) has been analyzed using ANSYS FLUENT 18.1. Results obtained from the numerical analysis have been compared with the parallel plate solar air heater (SAH) under similar operating conditions. A 3D model of a duct consisting of a jet plate is generated. Differential equations are solved using Finite volume method (FVM). The transport equations are solved using realizable k-ɛ turbulence model. Comparative study for SAHJI and SAH on the effect of Nusselt number and friction factor has been performed for a constant heat flux of 1000 W/m2 and the range of Reynolds number for the present study is 3800–16000. Results show a considerable amount of enhancement in heat transfer of 2.16 times for SAHJI compared to SAH. The value of the Thermo-hydraulic performance parameter has been found to be 1.16 thus solar air heaters with jet impingement are better than conventional solar air heaters in terms of thermo-hydraulic performance. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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