ทรัพยากร ระบุป้าย: Power Resources

14 รายการที่พบ (กำลังแสดง 11 - 14)

  1. Solar Hot Water Heater

    19-01-1977 Prepared by Eastern Oregon Community Development Council Various paged sections, illustrated
    Solar heating Solar Power Resources Appropriate Techno...

  2. Understanding Solar Stills

    01-01-1985 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

  3. Solar Still

    01-01-1980 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

  4. Solar Water Heater

    01-01-1986 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