ทรัพยากร ระบุป้าย: Sun

2 รายการที่พบ (กำลังแสดง 1 - 2)

  1. 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

  2. A Design Manual for Water Wheels With Details for Applications to Pumping Water for Village Use and Driving Small Machinery

    01-01-1989 Supplying power to many remote locations in the world from central generators using customary distribution methods is either economically unfeasible or will be many years in coming. Power, where desirable, will therefore need to be generated locally. Various commercial machinery is marketed, but...
    Water Wheel Water Pumps Village Technology Small Machinery Manuals Animal Welfare Sun Wind Fossil Fuels Nuclear Fuels Organic Waste VITA Downloads