Drying of products obtained from plants is an important step in converting seed and other products into usable forms. Currently conventional methods such as drying using woods are in vogue. This paper aims to investigate the use of solar energy for drying cardamom in place of conventional drying methods. The solar heat pipe, a main component of the dryer is designed and analysed for its performance using computational fluid dynamics (CFD). Based on the performance so obtained, simulations were carried out to improve the thermal efficiency and optimize the volumetrically fluid fill in the solar heat pipe. The results of the study indicate that solar heat pipe can effectively be used for drying and will result in saving of firewood and oil. Also it can save environment from pollution and greenhouse gases.
The project is about analyzing the wing leadingedge modifications by leading edge droop which is used for NACA airfoil. The objective of this project is to show that there will be an increase in stalling angle by using droop leading edge modifications and for that Computational Fluid Dynamics (CFD) software, Fluent is used to depict the increase in stalling angle when drooped leading edge is used. Using Leading Edge Drooping, achieved increased in the lift coefficient than the normal airfoil and we have tailored the stall characteristics by using leading-edge droop. And by using leading-edge droop we can successfully increase the stall/departure characteristics.
This paper presents the numerical analysis of elliptical fin circumscribing circular tube for various shape factor 0.13, 0.25, 0.39, 0.65 are considered. The EAF are fed with constant heat inputs under free convection. The result shows that physical representation of the temperature distribution and isotherms of the EAF for shape factors 0.13, 0.25, 0.39, and 0.65. The analysis shows that the increase in surface area along major axis gradually reduces the surface temperature in that direction. The result predicts that EAF can be used in space restricted places instead of circular fins by increasing the surface area along major axis. This will reduce the cost, space and time for analysis by experimenting.
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