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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

The field performance of a windmill powered sprinkler irrigation system.

Ionson, John Malcolm. January 1969 (has links)
No description available.
12

The conversion of wind power to electrical power

Needham, James Patrick January 1984 (has links)
The electrical-producing windmill industry boomed during 1983. It was estimated that"unit sales during 1983 would be twice those of the prior 10 years combined." Most of the activity has been in the development of windfarms in the western states and Hawaii. The boom is largely due to (1) tax breaks given to alternative energy producers and (2) the Public Utilities Regulatory Policies Act (PURPA) of 1978. PURPA requires public utilities to purchase electricity from small producers. In many instances, the investors main interest was the tax break and as a result the development was of inferior quality.⁴⁰ Electrical-producing windmills are delicate machines in that lightweight components are used to move large forces. Domestically, there are about 50 manufacturers of electrical-producing windmills. Most of these manufacturers have just entered the field. As such, they have not had time to perfect their machines. And as a result, 50% downtimes are not uncommon and failures are frequent.⁴⁰ In the mid-70's, the U.S. Department of Energy (DOE) embarked on a large scale program for the research and development of windmills. In 1982 the program was drastically cut by the Reagan administration. While the program was in full swing, significant steps were made in 129 130 developing safe, reliable wind energy systems. Wind energy systems could probably supply up to ten percent of the nation's annual electrical demands, but one to two percent is a more reasonable goal. For this to happen the government must not cut its existing financial incentives, existing windfarms must prove to be economical, private manufacturers must develop high quality wind energy systems, and windfarms must be developed at sites throughout the country. / Master of Engineering
13

Control of a variable shaftspeed wind energy conversion and battery storage system.

Simkovits, Harvey Roy. January 1977 (has links)
Thesis: M.S., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 1977 / Includes bibliographical references. / M.S. / M.S. Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science
14

Control of a variable-shaftspeed electromechanical energy-conversion system.

Simkovits, Harvey Roy January 1976 (has links)
Thesis. 1976. B.S.--Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science. / Microfiche copy available in Archives and Engineering. / Includes bibliographical references. / B.S.
15

Multi-disciplinary capstone assessment project

Gutierrez, Zachary. January 2008 (has links)
Thesis (M.S.)--University of Wyoming, 2008. / Title from PDF title page (viewed on Dec. 7, 2009). Includes bibliographical references (p. 53-54).
16

Material culture the Dutch windmill as an icon of Russian Mennonite heritage /

Sawatzky, Tamara A. January 2002 (has links) (PDF)
Thesis (M.A. in Theological Studies)--Associated Mennonite Biblical Seminary, 2002. / Abstract. Includes bibliographical references (leaves 99-105).
17

Material culture the Dutch windmill as an icon of Russian Mennonite heritage /

Sawatzky, Tamara A. January 1900 (has links)
Thesis (M.A. in Theological Studies)--Associated Mennonite Biblical Seminary, 2002. / Abstract. Includes bibliographical references (leaves 99-105).
18

Material culture the Dutch windmill as an icon of Russian Mennonite heritage /

Sawatzky, Tamara A. January 2002 (has links)
Thesis (M.A. in Theological Studies)--Associated Mennonite Biblical Seminary, 2002. / Abstract. Includes bibliographical references (leaves 99-105).
19

Addressing the Electricity Shortfall in Pakistan through Renewable resources

Hameedi, Ayoub January 2012 (has links)
This report focuses on addressing the electricity shortfall in Pakistan with the help of renewable resources. At present, the country is facing a shortfall of almost 7,000 megawatts (MW) which is affecting every walk of life and causing almost 1.5 to 2% GDP loss on annual basis. Previous research done on this subject reveals that electricity demand has always remained high then the total generation capacity of Pakistan. Similarly, it has been pointed out that the country is not taking maximum benefit from its available hydro, solar and wind resources. This leads us to the basic purpose of this research which is to have an exploratory understanding of the strategies adopted by India, China, Brazil and Spain for electricity generation in a green fashion and how can these strategies be implemented  in Pakistan. Case study has been adopted as methodology for this purpose. This research work also discusses the factors contributing in the lack of promotion of renewable energy resources in Pakistan and provide detailed analyses of positive changes these projects can bring in lives of masses in Pakistan. The sustainable management of surface water resource in the country has been discussed in particular as the country faced worst floods in its history during years 2010 & 2011. It will result in enhancing the surface water storage ability of Pakistan which will significantly reduce our dependence on underground water reserves and will directly increase our electricity generation capacity through hydro dams. Similarly, sustainable forest management has been discussed at length as it will not only ensure environmental sustainability but will also result in increase availability of biomass. Not to mention the fact that wood biomass is much cheaper then conventional source of electricity generation provided it is obtained through sustainable forest management. Finally, if all the green strategies discussed in this research work will be implemented, it will increase the overall electricity generation capacity of Pakistan up to 9% respectively.
20

A Feasibility Study and Business Model for Micro Vertical Axis Wind Turbine in Sweden

Babu, Harish, Mathew, Dona Maria January 2021 (has links)
This project is a part of the master thesis for the course Energy smart innovation in the built environment at Halmstad University. This project is done to check the feasibility of VAWT on replacing traditional horizontal axis windmills, costly offshore windmills, and other renewables. As Micro VAWT are smaller, they can be placed where traditional windmills will not be. To stress the point, these can be placed in places like traffic islands and open garden areas.  Lots of such projects are currently ongoing in different parts of the world. Sweden is lagging in this technology diffusion. We concluded that VAWM couldn't alone be used to replace traditional HAWTs or be enough to reach the full renewable target. They can be used in conjunction with HAWT to boost production and efficiency, and we also found other similar uses for VAWM. A business model is suggested so as for the optimal diffusion of VAWT. Our proposal of a micro VAWT of 1.8 million was able to produce 1.41TWh.We found that it was not possible to achieve with VAWT alone.

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