Abstract
Developments are carried out to enhance the performance of vertical axis wind turbines (VAWT). This paper studies the performance of the ducted wind turbine with convergent duct (DAWT). Basically, the duct technique is utilized to provide the desired wind velocity facing the turbine. Methodology was developed to estimate the decisive performance parameter and to present the effect of the convergent duct with different inlet angles. The ducted wind turbine was analyzed and simulated using MATLAB software and numerically using ANSYS-Fluent 17.2. Result of both approaches were presented and showed good closeness for the two cases of covering angles 12 and 20 respectively. Results also showed that the convergent duct with an inlet angle 12 and 20 improved the coefficient of performance at a specified tip speed ratio by 25.8% and 33.33% respectively in the productivity of wind turbine.
Highlights
The development of renewable energy has become one of the most important goals due to global warming and the high consumption of energy, in addition to the fossil fuel waste and its impact on the environment in order to deal with these problems by resorting to alternative means of obtaining energy
The study was investigated the concept of ducted wind turbine, and the integration of the wind turbine model mounted inside the building using the simulation tools
In this study modeled SST
Summary
The development of renewable energy has become one of the most important goals due to global warming and the high consumption of energy, in addition to the fossil fuel waste and its impact on the environment in order to deal with these problems by resorting to alternative means of obtaining energy. Grant and Kelly [3] developed and tested a mathematical model of a ducted wind turbine and described the integrations of the turbine according to various domain of building simulation. The study was investigated the concept of ducted wind turbine, and the integration of the wind turbine model mounted inside the building using the simulation tools. Duct wind turbines is the bulk of the wake, which can give rise to wake interference, which can cause fatigue loading of down wind turbines and reduce the efficiency of wind farms. These are some of the reasons why wind turbine wake structure has been studied extensively [10,11]. The convergent duct turbine has the ability to accelerate the air flow through a converging intake and increasing the power that can be extracted from the air flow
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