资源 标记: Power Resources
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- 1986-01-01 Hot water is not always necessary, and in warm climates it may be relatively easy to do without. It is, however, more effective than cold water for many purposes. Even so, in some areas hot water is not used because fuel is so expensive it is used only for essential tasks. A solar heater can...
- 1980-01-01 A solar still is a device that uses energy from the sun to purify salt- or brackish water. Solar stills (as shown in Figure 1) can be easy to construct and maintain. Depending upon their size, they can provide water for many uses. And in desert areas where sunshine is plentiful and water is not,...
- 1985-01-01 Solar distillation uses the heat of the sun directly in a simple piece of equipment to purify water. The equipment, commonly called a solar still, consists primarily of a shallow basin with a transparent glass cover. The sun heats the water in the basin, causing evaporation. Moisture rises,...
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1977-01-19 Prepared by Eastern Oregon Community Development Council Various paged sections, illustrated
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Small hydro power installations have the potential to provide a renewable supply of energy to people in remote, hilly communities, far from the national grid. This book is based on the authors’ considerable experience of installing hydroelectric schemes that produce up to 500 kW for powering...
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1980-01-01 The Michell or Banki turbine is a relatively easy to build and highly efficient means of harnessing a small stream to provide enough power to generate electricity or drive different types of mechanical devices. The turbine consists of two main parts - the runner, or wheel, and the nozzle. Curved...
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Focuses on small-scale energy technologies, not based on conventional fuels that are candidates for rural and village use in developing countries. The technologies that this book presents are capable of improving the quality of rural and village life in situations where conventional fuels and...
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1979-01-01 This paper discuessed the prospects for traditional and nonconventional energy in the period to 1990 under three general headings: energy and basic needs, energy and modernization, and nonconventional energy sources for the modern sector and developed countries.
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1985-01-01 This book provides paratechnical information forfield staff and counterpart personnel in Third World countries for use in planning environmentally sound small-scale projects.
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This Reader's Digest "BACK TO BASICS" handy book is a how-to, user-friendly guide that teaches self-sufficiency covering all of life's essentials: shelter; alternative energy sources; growing and preserving food; home crafts; directions for making herbal remedies; and even home-grown...