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78.446  Articles
1 of 7.846 pages  |  10  records  |  more records»
In recent years, sites with low annual average wind speeds have begun to be considered for the development of new wind farms. The majority of design methods for a wind turbine operating at low wind speed is to increase the blade length or hub height compa... see more

This work presents a vertical wind turbine with wind collector designed using low-cost materials and specific sensors for the acquisition of physical quantities relevant to obtain measures of efficiencies under different conditions of use. We describe the... see more

Today we encounter systems which consist of several vital components interacting with environment, and organizational factors. This necessitates an approach which is enabled to consider various aspects of systems and underlying interactions. To clearly il... see more

Power production of a wind turbine is dependent upon its rotor size and at present wind turbines with large rotor diameter (>175 m) are available in the market. However major problems associated with such large size conventional turbines are their cost... see more

Based on a concept of “cost reduction by large rotor and small generator”, a kind of small vertical axis wind turbine (VAWT) called a butterfly wind turbine (BWT) has been developed with rotor diameter of 7 m and five looped blades. One of the... see more

The study assessed the wind energy potential of ten selected sites in the south western region of Nigeria and carried out a cost benefit analysis of wind power generation at those sites. Twenty four years’ (1987 to 2010) wind speed data at 10 m height obt... see more

In this paper our effective approach is to harness electrical energy from the highway by using of vertical axis wind turbine. The smart windmill consists of a stationary shaft which is mounted on the ball bearing on the top and bottom end of the shaft The... see more

Renewable electricity generating systems are gaining ground in residential sector for the purpose of diminishing the electricity bills or to reaching some degree of energy independence. The decision to invest in small wind turbines or hybrid energy genera... see more

Nyala is one of the most suitable areas in Sudan for building wind energy conversionsystem. This system could be linked with Nyala electrical grid without expensive cost because it isnear to the electrical local grid. The permanent changes of wind speed w... see more

1 of 7.846 pages  |  10  records  |  more records»