Portable Power System

Contest Info

  • Started: 7/11/2007 06:00
  • Ended: 7/13/2007 06:00
  • Level: advanced
  • Entries: 10
  • Jackpot:
  • FN Advanced 1st Place $5
  • FN Advanced 2nd Place $3
  • FN Advanced 3rd Place $2
Portable Power System
Contest Directions: US Department of Defense announced the open competition for the best design of a portable power system for troopers. The requirements are: the device has to weigh within 8 pounds and be able to power most electronic equipment - radios, global positioning systems, night vision devices - for a single trooper for a period of four days. The new power generator device will replace the current wearable power systems used the US army - they weigh over 19 pounds and include battery pack and solar panel generator with the accessories. DOD will announce the three winners in 2008, and the chosen design will get a $1 million check for the exclusive right to use the design for mass production in the US military.
Design or place any portable power system on animals and people. Some examples can be bugs powered by batteries, elephants wearing solar panels, and people having carrying small power plants on their backs. Your power system can be actually carried, worn, or built in the animal / person like in the example with batteries.

Contest Info

    • Started: 7/11/2007 06:00
    • Ended: 7/13/2007 06:00
    • Level: advanced
    • Entries: 10
    • Jackpot:
    • FN Advanced 1st Place $5
    • FN Advanced 2nd Place $3
    • FN Advanced 3rd Place $2
This gallery only contains our top 10 selections from its parent contest Portable Power System. All 10 contest pictures can be viewed here.
  • Firefly with Solar Panels

    Firefly with Solar Panels
  • Nuclear Powered Grasshopper

    Nuclear Powered Grasshopper
  • Portable Solar Panels on Fireflies

    Portable Solar Panels on Fireflies
  • Ladybug with a Battery

    Ladybug with a Battery
  • Battery Powered Dragonfly

    Battery Powered Dragonfly
  • Groundhog with a Generator

    Groundhog with a Generator
  • Solar Panels on a Sled Dog Racing Team

    Solar Panels on a Sled Dog Racing Team
  • Nuclear Powered Camel

    Nuclear Powered Camel
  • Battery Operated Hand Power

    Battery Operated Hand Power
  • Al Gore Power Generator

    Al Gore Power Generator
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This contest is fueled by the following news: Technical progress, electronics in transport, life, and medicine stimulated development of portable sources of power supply, amongst which, the chemical sources of power, in magnitude relation, occupied foreground by becoming product of mass consumption. Portable luminaries (lighting fixtures), tape-recorders and radio, television sets and portable medical equipment, means of railway transport, automobiles, tractors, aircrafts, artificial satellites, space crafts, communication means and many other are equipped with small power supply sources. . Theory of sources of power supply envisages study of all electrical current generation stages on the basis of modern representations about physics of solid body, liquid and gas, about transfer process of charges and electrochemical reactions. Theory of power supply sources also studies optimization issues, including how to select the initial parameters, ensuring optimum output characteristics of sources of power as well as developing the methods to forecast the characteristics of future power sources. The following form the main characteristics of power sources: Efficiency, power consumption (or specific power consumption), rating (or specific power rating, attributed to unit mass, volume etc), service life, quality of generated electrical energy (frequency, voltage, capability to withstand overloads, pricing and reliability). Chemical sources of power supply: Facilities, generating electrical energy due to the oxidation- reduction reactions of chemical reagents. With respect to operating circuit and capability to produce energy into electrical network, chemical sources of power supply are divided into primary, secondary and reserve and also electrochemical generators. Primary source of power supply (Galvanic cells and batteries) allow, as a rule, single-time usage of energy of chemical reagents. Secondary source of power supply (individual batteries and storage batteries) allow multiple (hundreds and thousand charging-discharging cycles) usage of energy of constituent chemical reagents. Reserve sources of power supply allow only single time energy usage of chemical reagents. Unlike galvanic cells and batteries, in reserve sources of power supply, electrolyte is galvanically never connected with electrodes during storage. Storage life of latest reserve sources of power supply exceed 10-15 years. Electrochemical generators (Fuel cells) represent themselves as a variety of chemical power sources. Electrochemical generators are capable to continuously generate electrical current for long-term as a result of energy conversion of chemical reagents (gaseous or liquefied), received into generator from external supply. Physical sources of power supply: Facilities, converting heat, mechanical, electromagnetic energy and also energy of radiation and nuclear disintegration into electrical current. In conformity with most frequently used classification, the following belong to physical sources of power supply: Electric generators, thermo-electrical generators, thermo-emission converters and also generators, converting energy of solar radiation and atomic decay. Electric generators, converting mechanical energy into electrical energy - widely used type of electrical sources , based on latest power engineering. They can be classified with respect to rating (ranging from fractions of watts to hundreds of watts), as per purpose and operating characteristics (stationary, transport, reserve etc), as per type of primary motor (Diesel generators, turbo, and hydro-treaters), according to working body (vapor, water and gas) etc. Thanks to significantly long time spent on theoretical, design and technological upgrade, characteristics of this type of power source attained values, close to permissible values. Probable usage areas of thermoelectric generator (TEG): Autonomous power supplies (in transport, in communication technology and in medicine), anti-corrosive protection (on trunk pipelines) & others. Working principle of power source, converting energy of solar radiation, is based on internal usage purpose. Photoelectric generator (solar battery) is a collection of valve-type photoelectric cells, converting energy of solar radiation into electrical energy. Direct conversion of solar radiation energy was practically possible only after developing the high-effective photoelectric cell from mono crystal silicon in the year 1953. Best samples of silicon photoelectric cells have efficiency of approximately 15% and service life practically unlimited. Solar batteries are used mainly in aerospace technology, where the batteries occupy dominating position as energy sources in artificial Earth satellites, orbiting space stations and space crafts and also for supplying power to regions, which are yet to be supplied electricity, with maximum sunny days in a year. Power sources, converting the atomic decay (atomic batteries) use kinetic energy of electrons, formed during the decay. These power sources were invented by 1971 during the development stages and practical usage require solutions to several design and technological issues. Efficiency of atomic batteries is not so high (up to 1%) and field of application can be determined only after accumulating sufficient experience in using them.
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