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Cracks at Foundations |
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Tuesday, 03 April 2007 |
Problems of a Reliable Connection between Steel Tower and Concrete Foundation
 The construction of wind energy converters is normally based on an expected lifetime of 20 years. This assumption is made when designing the mechanical parts of the engine and the reinforced concrete foundation. However, in some cases defects occur much earlier and raise questions of serviceability, stability and durability. This article deals with the problems of how to connect a steel tower to a reinforced concrete foundation. It shows the possible damage that might occur and an example of reconstruction.
By Marc Gutermann, managing partner, Prof. Dr.-Ing. Steffens Ing., Germany
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Predictive Maintenance Services |
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Tuesday, 03 April 2007 |
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Gamesa Consolidates its own Preventive Maintenance
 Among its many other activities, Gamesa is involved with predictive maintenance services and condition monitoring systems. In this article Gamesa's services and systems are described in the wider context of the needs for integrated condition monitoring, prediction and preventive maintenance for wind turbines.
By Gamesa Eólica, Spain
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Long-Duration Wind (Aero) Generator Back-Up |
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Tuesday, 03 April 2007 |
A Non-Battery, Air-to-Air Hybrid System
 In this article, R.S. Chauhan discusses his ideas for a long-duration (up to 90 days) non-battery air-to-air hybrid back-up system which converts and stores wind energy into an acceptable form during windy periods. This stored energy can then be released to rotate small wind (aero) generators when there is no wind or the wind speed is below the critical velocity. Such a system could ensure the availability of power from wind generators at all times.
By R.S. Chauhan, India
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Magenn Air Rotor System (MARS) |
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Thursday, 01 March 2007 |
Wind Power Anywhere
 The Magenn Air Rotor System ‘MARS’ is a Wind Power Anywhere solution with certain advantages over existing conventional wind turbines and diesel generating systems. These advantages include global deployment, low costs, good operational performance and environmental benefits. The article describes the features of the system, and its history and development, quoting extensively from the words of its creator, Fred Ferguson, before listing the advantages and market that Magenn foresee for this system.
By Mac Brown, CEO Magenn Power, Canada
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| Results 46 - 54 of 131 |
The average wind speed on this planet is 5 m/s. However, as most people in the industry know, conventional wind generators are designed to achieve optimum performance at wind speeds between 12 and 25 m/s. Sites that can provide that kind of wind energy are unusual and everybody seems happy when a wind generator works at least 30 to 35% of the time. The author describes his Motorwind concept, which he thinks will overcome this discrepancy and make wind energy more efficient and more widely available.
