Effect of different water flow gap distance in thermal performance of solar photovoltaic panel
Authors: Anand Kumar, Mr.Tejkaran Naroliya, Dr. Vinay Kumar Yadav
Abstract
In the current work, the CAD model of solar panel (photovoltaic) has been developed by using design modeller. The model has been simulated using ANSYS software on fluent solver in workbench in order to observe various parameters affecting the thermal performance of solar panel (photovoltaic). Five types of configurations of solar panel (photovoltaic) with water flow gap i.e. flow gap of 10mm, 20mm, 30mm, 40mm and 50mm have been used. The simulation of the optimized model gives lower value of temperature distribution with respect to different mass flow rate at constant solar radiation. It is also observed from present analysis that solar panel (photovoltaic) with 10mm and 20mm of water flow gap exhibits lower temperature with thermal energy gain with enhancement of 65 to 70 percent of total efficiency, the regression analysis is also performed for developed optimized models for determination of optimum developed optimized model and it was observed that 10mm of water flow gap have effective results as compared to other configurations.
ANALYSIS OF UNIFORM INFINITE FIN BY ELZAKI TRANSFORM
Authors: Dr Govind Raj Naunyal , Dr Updesh Kumar
Abstract
The amount of heat convected from the fin surfaces has been determined by solving the general differential equation describing heat dissipation from the infinite fin via the calculus approach. Heat transfers by desirable quality of temperature gradient and the modes which transfer heat from one part of the medium to another are conduction, convection, and radiation. This paper is presenting the use of a Elzaki Transform for the analysis of uniform infinite fin by solving the general form of energy equation describing the heat dissipation from the surface of the medium and obtaining the distribution of temperature and hence the rate of heat convected into the surroundings from an infinite uniform fin.
ANALYSIS OF WINGTIP VORTEX AND MITIGATION BY USING WINGLETS
Authors: Vishnu Venugopal , Vishnu R , Vishnu S S , Shinto George
Abstract
Airplanes have played a crucial role in the industrial and commercial development. Therefore it is necessary to have an efficient system for transit through air. The most important component of an airplane is its wing. The aerofoil shape of the wing facilitates the creation of the lift and because of this, it actually flies. Therefore in the design of a wing, it is to be taken into consideration that it has minimal losses. One such loss of lift is due to the vortices produced at the wing tips on the wings. Wingtip vortices are circular patterns of rotating air left behind a wing as it generates lift. The wingtip vortex has been in existence since the beginning of flight. It has been an ever-increasing problem as the weight of each succeeding generation of aircraft has increased. In addition to the large drag associated with the lift-induced vortex, the vortex system of the large jumbo- jet aircraft of today has become a major problem to the air traffic controller in the terminal area as well as an unseen hazard to smaller aircraft during cruise flight. This is a result of not only the strength of the vortex but also the persistent nature of its flow. To fully comprehend the nature of lift induced wingtip vortex, the lift produced by a wing of an airplane should be closely examined. In this paper CFD is used in ANSYS to simulate the effects of such vortex on a scaled wing model of an airplane, and also simulates the effect of a vortex reducing device on the generation of lift and the vortex. The results can be useful in designing a better device for the reduction of wingtip vortices.