Wind is a type of solar energy and is an outcome of the uneven sun heating of the atmosphere, the irregularities of the earth’s surface, and the rotation of the earth. Wind streams can vary significantly across the Earth, caused by water, vegetation, and differences in environment. People use this wind stream for a lot of purposes. The terms wind energy explains the process by which the wind is used to produce power or electricity. Wind turbines alter the kinetic energy in the wind into mechanical power, and then that power can be used for particular tasks or it can be generated.
Wind turbines function on a straightforward rule. The wind energy turns two or three propeller around a rotor. The rotor is linked to the core tube, which spins a generator to produce electricity. Wind turbines are placed on a tower to get a large amount of the energy. At 30 meters or more above soil, they can take benefit of more rapidly and a lesser amount of disordered wind. Wind turbines are able to make electricity for a single house or building, or they can be linked to an electricity network for more extensive electricity distribution.
According to the current situation, there will certainly be an energy change in the future. It is already known that there is an energy shortage so the mankind is at the front of the most significant crossroads. The question is whether will be the population used to change contemporary habits and use alternative sources.
The modern habits include the large use of vehicles, electricity and many other facilities that all require energy. The prime source of this required energy since the beginning of the industrial revolution has been the use of fossil fuels. They have been the muscles that have enabled us to develop to such heights. However, there is a problem because the reserves of fossil fuels are running out. The situation is even worse if we consider the fact that these sources can not be renewed. The only solution to overcome the increasing energy crisis is promoting alternative energy solutions.
Ventilation: The modern concept of ventilation implies not only the replacement of vitiated air by a supply of fresh outdoor air, but also control of the quality of incoming air with regard to its temperature, humidity and purity with a view to provide a thermal environment that is comfortable and free from risk of infection.
Requirement of air: Usually, the standards of ventilation have been based on the efficiency of ventilation in removing body odor.
1. Cubic space – Standards for the minimal fresh air that is advocated by different workers range from 300 to 3,000 cubic ft. per hour per person.