Wind Mill Abstract

WIND FUNNEL (INVELOX)
Abstract :-

Introduction :-
Since early recorded history, people have utilized wind energy. It propelled boats along the Nile river as early as 5000 BC and helped Persians pump water and grind grain between 500 to 900 BC. As cultures harnessed the power that wind offered, the use of wind mills were used extensively in food production. Eventually around 1000 AD with power technology spread north to European countries which adapted windmills to help drain lakes and marshes in the Rhine river Delta. Wind energy conversion systems have existed for more than 3000 years. Since the appearance of the ancient Persian vertical axis windmills 3000 years ago, many different types of windmills have been invented Initially, wind

Because of these design parameters, the tower height and blade sizes in conventional systems have grown to sizes that are considered excessive. In terms of manufacturing, logistics, installation and maintenance challenges and costs, the heights of the towers and size of the blades are reaching to very challenging limits. A recently developed technology INVELOX (increased velocity), has shown promise. The patented INVELOX is simply a wind capturing and delivery system that allows more engineering control than ever before. Instead of snatching bits of energy from the wind as it passes through the blades of a rotor, the INVELOX technology captures wind with a funnel and directs it through a tapering passageway that passively and naturally accelerates its flow. This stream of wind energy then drives a generator that is installed safely and economically at ground or sub-ground

These key parts are (1) intake, (2) pipe carrying and accelerating wind, (3) boosting wind speed by a Venturi, (4) wind energy conversions system, and (5) a diffuser. The fundamental characteristic of the INVELOX system is that it captures a large portion of free stream air flow and can do so in nearly any free stream locations with flow greater than 1 m/s. INVELOX passively converts the existing kinetic and potential/ pressure energy of wind to higher kinetic energy 1/2kV2k that can more effectively be converted to mechanical rotation of a turbine. Along any part of the INVELOX tower of constant cross-section the velocity remains the same and therefore there is no kinetic energy drop across the turbine In contrast to older designs of ducted turbines, INVELOX separates the location of the shroud and turbine-generator system; the intake is on the top while the turbine-generator is placed at the ground level inside the ducted pipe carrying captured wind towards the turbine. This unique feature allows the engineers to size the intake wind delivery system for any speed increase required without increasing the turbine size. The size of an intake depends on local wind speeds and other environmental conditions. In short, the turbine size may be selected based on the ability of the INVELOX to increase wind speed/mass flow