27-09-2014, 10:45 AM
Design and Analysis of Series and Parallel Combination of Vertical Axis Highway Windmill Project Report
Series and Parallel.doc (Size: 710 KB / Downloads: 12)
Abstract
The Paper focuses on the design of a series and parallel vertical axis highway windmill (VAHW)l. In this, VAHW blade and generator designed with the help of MATLAB. The strong PVC is used as a construction material. The aerodynamic analysis is performed implementing a momentum based model on a mathematical computer program. A four bladed wind mill is proposed as candidate for further prototype testing after evaluating the effect of several parameters in turbine efficiency, torque and acceleration. The results obtained indicate that PVC is a suitable material for blade construction. In order to optimize the manufacturing process and achieve repeatable results, variables such as heating time and material alignment had to be controlled.
The merging two or more VAHW through MATLAB simulation without loss of power efficiency. Wind energy is a form of non-conventional energy and on highway it is available with high velocity due to high speed of heavy vehicle. Thus the source of energy is very sufficient to run wind mill without add external cost and at negligible maintenance. So our main objective is to lighten up highways throughout to prevent accidents as well ease of driving in the night. All these projects planned at minimum cost of product and almost zero cost of running and maintenance. Also we want to provide the electricity in remote area at where the consistency of electricity is not there.
Keywords— DC generator, coupling pipes, blades, pipes, Battery, Matlab.
INTRODUCTION
Wind energy is the fastest growing source of clean energy worldwide. Wind power energy is getting more shares in the total energy production every year, with wind turbines growing bigger and bigger at the rhythm of technology does. A major issue with the technology is fluctuation in the source of wind. There is a near constant source of wind power on the highways due to rapidly moving vehicles. The motivation for this project is to contribute to the global trend towards clean energy in a feasible way. Most wind turbines in use today are conventional wind mills with three airfoil shaped blades arraigned around a horizontal axis. These turbines must be turned to face into the wind and in general require significant air velocities to operate. Another style of turbine is one where the blades are positioned vertically or transverse to the axis of rotation.
These turbines will always rotate in the same direction regardless of the fluid flow. Due to the independence from the direction of the fluid flow, these turbines have found applications in tidal and surface current flows. The Paper is to design a VAHW to recapture wind energy from vehicles on the highway. Wind energy is considered as the fastest growing clean energy source however; it is limited by variable natural wind. Highways can provide a required considerable amount of wind to drive a windmill due to high vehicle traffic.
This energy is unused. Extensive research on wind patterns is required to determine the average velocity of the wind created by oncoming vehicles. The wind mill will be placed on the medians therefore fluid flow from both sides of the highway will be considered in the design. Using all of the collected data, existing streetlights on the medians can be fitted with these wind mills.
Additionally, since the wind source will fluctuate, a storage system for the power generated will be designed to distribute and maintain a constant source of power. Ideally, the windmill can be used globally as an unlimited power source for streetlights and other public amenities. For this paper we are looking for “Vertical Axis Highway Wind Mill”. Mainly Helical type of windmill can be used for this type of application as it collects wind from all directions. The cost of windmill is increasing in accordance with the rising cost of energy and commodities.
The cost of designing the windmill, calculated in energy savings must be recovered in a reasonable time period. Each vehicle on the highway offers an intermittent and uncontrolled source of wind power. The MATLAB design of the wind mill must include storage of power and a system to distribute the generated power effectively.
ELEMENTRY MOMENTUM THEORY
The kinetic energy of an air mass m moving at a velocity v can be expressed as
Considering a certain cross-sectional area although which the air passes at velocity V, the volume v’ flow through during a certain time unit, the so called volume flow is
DC GENERATION IN VAWM
The alternators or generators are the heart of the windmill and it must be properly sized to match your swept area and to produce right type of power to match your application. The unit needs to make higher voltages at lower rpms, otherwise it is not suited for wind power use, even motors can also be used a generators. In this vertical axis highway windmill we are using two dc generators coupled with the wind blade turbine
Operation Explanation
This verticle axis highway windmill is placed in the highway dividers. When the air is forced by passing the vehicle from both sides the speed of a wind at the center place is higher than the pedestrain walking lane.
Step-1:
In the first step the forced wind and middle part of the highway will hit wind turbine blades and make a rotation in it The wind turbine blade will rotate at clockwise direction even when the vehicle move in any of the side of the highway.because thw arrangement of the wind turbine blades are in that manner.
Step-2:
The verticle axis highway windmill the wind blade turbine is couled with the two generatos .one is in the top and the other one is at the bottom of the wind turbine blades.when the turbine blade rotate the coupled generators will produce electricity in both direction.
CONCLUSION
Conclusively, extensive data is collected on wind patterns produced by vehicles on both sides of the highway. Using the collected data, a wind turbine is designed to be placed on the medians of the highway. Although one turbine may not provide adequate power generation, a collective of turbines on a long strip of highway has potential to generate a large amount of energy that can be used to power streetlights, other public amenities. So we designed parallel and series VAHW for adequate power generation. This design concept is meant to be sustainable and environmental friendly. Additionally, a wind turbine powered by artificial wind has a myriad of applications. Theoretically any moving vehicle can power the turbine such as an amusement park ride. The highway wind Mill can be used to provide power in any city around the globe where there is high vehicle traffic.