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साधन चिह्नित: Vita

128 items found (Showing 101 - 110) |

  1. Silk Screen Printing

    01-01-1987 Silk screen printing is a simple, inexpensive method of producing multiple copies of attractive visual aids, posters, and other materials, including typewritten pages. A squeegee forces very thick paint through those parts of the silk screen that are exposed by the stencil onto paper placed...
    Downloads VITA Printing Silk Screen Silk

  2. Simple Washing Machines

    01-01-1988 This easily-operated washing machine can be built by a good carpenter from materials easily found in most countries. It is easy on clothes, effective, and sanitary. The machine, which can take 3-kilogram (6-pound) load of clothes, can be shared by several families. Clothes will last much longer...
    Downloads VITA Plunger Washing Ma... Sanitation Hand Operated Washing Machine

  3. Savonius Rotor Construction

    01-01-1977 The text on the following pages provides data compiled by various investigators on the amount of energy available from S-rotors at various wind speeds. The author feels the potential rotor builder should use these data carefully to see if an S-rotor can meet his needs--before he begins the...
    VITA Savonius Rotor Farm Buildings-Des... Design & Construction Rotors

  4. Understanding Stirling Engines

    01-01-1984 Stirling engines are external combustion engines that use air or other gases as working fluid. They can burn any solid or liquid fuel as their heat source. This makes them very attractive, particularly in situations where conventional fuels are expensive and hard to obtain. Because some types of...
    Downloads VITA Stirling Engines Engines Motors

  5. Overshot Waterwheel A Design And Construction Manual

    01-01-1980 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

  6. Men's Work Shirts

    01-01-1987 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...
    Patterns Downloads VITA Clothing Small Business

  7. Hydraulic Ram

    01-01-1987 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

  8. Understanding Micro-Hydroelectric Generation

    01-01-1985 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

  9. Understanding Mini-Hydroelectric Generation

    01-01-1985 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

  10. Understanding Hydropower

    01-01-1984 Once it is understood that gravity and water can be harnessed to produce energy, a study of methods to extract this energy efficiently can be undertaken. The purpose of this paper is to discuss several such methods in general terms. The paper provides a basic introduction to the science of water...
    Water WH Gravity-Fed Energy Conservation Energy sources Downloads VITA Water Power Hydropower