Resources Tagged: Downloads

490 items found (Showing 81 - 90) |

  1. Hydraulic Ram

    1987-01-01 A hydraulic ram is a pump that uses the power of falling water to force a small portion of the water to a height greater than the source. Water can be forced about as far horizontally as desired, but greater distances require larger pipe, due to friction. No external power is necessary. With only...
    Downloads Energy sources VITA Hydraulic Ram Pumps

  2. Understanding Mini-Hydroelectric Generation

    1985-01-01 Electricity can be generated from the power of flowing water. This is called hydroelectric generation, and it can be done anywhere that there is water and a hill or drop for it to run down--in an irrigation canal, where a river runs through rapids or over a waterfall, or where a dam has backed up...
    Downloads VITA Water Water Power Hydropower

  3. Small Michell (Banki) Turbine

    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...
    Downloads VITA Turbine Hydraulic Turbines Power Resources Construction Manual

  4. Stabilized Earth Construction

    1987-01-01 Soil is a universal building material and is one of the oldest known to humanity. Simple soils (without additives), or soils improved by adding stabilizing materials such as bitumen or cement, are suitable for homes, schools, roads, and other construction. For construction purposes, soil is...
    Soil Health Downloads VITA Manuals Construction Stabilized Earth

  5. Small Scale Manufacture of Burned Building Brick

    1990-01-01 The purpose of this manual is to outline, in as simple a manner as possible, the details of making and burning clay brick suitable for domestic building. The scope of the manual is confined to "cottage industries"; it does not cover large commercial production such as is known in the United...
    Fuel Clay Downloads Building Brick Bricks VITA Small Scale Brickmaking

  6. Making Building Blocks with the CINVA-Ram Block Press

    1977-01-01 This manual combines the experience of four men who used the CINVA-Ram Block Press and figured out answers, bit by bit, to the inevitable problems of detail as they came up day after day. That was the hard way to learn how to use the press; this handbook is intended to make it easier.
    Downloads VITA Block Press CINVA-Ram Construction

  7. Understanding Briquetting

    1985-01-01 In many parts of the world, the primary source of energy for such vital activities as cooking and space heating is burning wood and other agricultural products. An increasing population using a dwindling resource of combustible biomass materials will eventually result in a shortage of those...
    Downloads VITA Briquette Presses Bricks Briquette

  8. Seeds, Weeds, and Pests

    This seed cleaner was developed in Afghanistan to remove round seeds of weeds from wheat grains. The round seeds could not be separated by a sieve because they were the same size as the wheat grains. The cleaner described here takes advantage of the round shape of the weed seeds to separate them...
    Downloads VITA Pest Management Pests Weed Management Weeds Seeds Seed Sources

  9. Overshot Waterwheel A Design And Construction Manual

    1980-01-01 Improved use of water as a power source has potential for much of the developing world. There are few places where water is not available in quantities sufficient for power generation. Almost any flowing water--river, brook, or outlet of a lake or pona--can be put to work and will provide a...
    Downloads VITA Construction Manual Design & Construction Water Wheel Water

  10. Understanding Micro-Hydroelectric Generation

    1985-01-01 The power of flowing water can be used to generate electricity, or to do other kinds of useful work. Generating electricity in this way is called hydroelectric generation. It can be done anywhere that there is water and a hill or drop for it to run down, such as a drop in an irrigation canal, a...
    Downloads VITA Water Water Power Hydropower Micro-Hydroelectric