ធនធាន ដាក់​​​ស្លាក: Downloads

451 items found (Showing 271 - 280) |

  1. Double-Drum Sawdust Stove

    01 មករា 1988 In the United States, sawdust traditionally has been burned in large furnaces for industrial heating, in smaller furnaces for home heating, and in fireplaces in the form of compressed logs. In other parts of the world, loose sawdust has been burned for years in inexpensive double-drum stoves....
    Sawdust Stoves Cookstoves Double-Drum Stove VITA Downloads

  2. Portable Metallic Cookstove

    01 មករា 1988 This Industry Profile is one of a series briefly describing small or medium-sized industries. The Profiles provide basic information for starting manufacturing plants in developing nations. Specifically, they provide general plant descriptions, financial, and technical factors for their...
    Metallic Cookstoves Cookstoves VITA Downloads

  3. Improved Woodstoves: Users' Needs And Expectations In Upper Volta

    01 មករា 1980 These three improved stove construction and dissemination projects are augmented by two research projects. One concerns technical and scientific research to formulate mathematical rules for the construction of fuel efficient stoves. It is being conducted by the University of Eindhoven and the TNO...
    Wood stoves VITA Stoves Downloads

  4. Solar Water Heater

    01 មករា 1986 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...
    Solar Water Heater VITA Water Heating Solar Downloads Power Resources

  5. Understanding Solar Water Heaters

    01 មករា 1986 The easiest and most practical application of solar energy is for heating water. It has been technically feasible to heat household water using solar energy since the 1930's. Solar water heaters for homes and industry have been employed extensively in Israel, Australia, and Japan, and were quite...
    Solar Water Heater Solar heating VITA Downloads

  6. Solar Still

    01 មករា 1980 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,...
    Solar Stills VITA Solar Power Resources Downloads Sun

  7. Understanding Solar Stills

    01 មករា 1985 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,...
    Solar Stills Solar Power Resources VITA Downloads Solar Distillation

  8. Understanding Solar Water Pumps

    01 មករា 1985 This paper examines water pumping systems that use solar radiation as a direct source of energy. We look primarily at small-scale rural applications in the Third World, where the potential benefits are greatest and the near-term economics seem most favorable. Two generic technical approaches for...
    Solar Pumps Water Pumps VITA Downloads

  9. Understanding Solar Energy

    01 មករា 1985 Developing countries are in a particularly good position to use solar energy because so many receive an abundance of sunshine. More important, the inhabitants of these countries are frequently scattered over vast areas, making access to electricity or conventional fossil fuels difficult as well...
    Solar Energy VITA Downloads Solar

  10. Environmentally Sound Small-Scale Agricultural Projects

    01 មករា 1990 This manual is designed to assist those who plan and implement small-scale agricultural projects. By promoting awareness of environmental concerns, the manual can increase the development worker's ability to design projects that are both environmentally sound and potentially more sustainable....
    Agricultural Projects VITA Downloads Small Farm Develop...