THE ENERGY CIRCUIT
the point of use. For example, Soldiers could use carbon dioxide from engine exhaust and hydrogen from water elec- trolysis, via solar power, to synthesize a hydrocarbon fuel.
Robust mission extenders include confor- mal batteries, which are thin and flexible, to reduce the burden of batteries on the Soldier. One possible solution devel- oped by CP&I to decrease that burden includes the Conformal Wearable Bat- tery (CWB), a thin, lightweight battery that conforms to the body and integrates seamlessly into a Soldier’s body armor. Te CWB can be worn in either the side, chest or back pouches with the ballistic protective plates, where it is virtually invisible and transparent to the Soldier. Tis power solution significantly reduces battery swaps as well as the variety of bat- tery quantities the Soldier has to carry.
Te Future Force 2025 goal
ENERGY REFORMING The Reformer Test Bed is used for evaluation of fuel reforming—a new technology that could trans- form jet propellant into a fuel that Soldiers could use and generate on the battlefield. (U.S. Army CERDEC photo)
for the
CWB is to incorporate it with extremely light, next-generation,
lithium-based
electrochemical robust materials. Tis will significantly increase energy content
and
development and systems engineering to provide the lightest, most
fuel-efficient
and cost-effective power sources in terms of tactical power generation, storage and the application of alternative and renew- able energy technologies. Tese efforts will lighten the Soldier’s load and logis- tical burden by providing lightweight and high-energy-density, compact power sources, while also supporting expe- ditionary maneuvers through power options with longer runtime.
Several key components of the Tac- tical Power Generation efforts that support Force 2025 include fuel refor- mation, robust mission extenders, energy
54
harvesting and wireless power. Fuel reforming is a leap-ahead Force 2025 technology that could allow jet propellant 8 (JP-8) to be transformed into valuable fuels that Soldiers use and generate on the battlefield. CP&I wants to reform JP-8 locally instead of shipping propane, methanol, kerosene and gasoline.
In addition to fuel reformation, CP&I is working to synthesize fuel in the field via catalytic processes that use materials organic to military operations, in com- bination with alternative energy sources. Te goal is to assemble a hydrocarbon fuel from available waste streams that provides value to the Soldier at or near
further
enabling CWB to provide Soldiers in austere environments with continuous power for more than 72 hours.
Another option being explored is kinetics: harvesting energy from the Soldier’s own movements and surroundings. CP&I is researching and developing kinetic and solar energy harvesting efforts to prove out new materiel solutions for charging on-the-go, and is developing test meth- odologies to evaluate prototype systems during program development. Currently, CP&I and its partner organizations are looking at an electricity-generating assault pack and a mechanical insole that could be used inside a boot or shoe to help harvest Soldiers’ kinetic energy.
reduce weight,
Army AL&T Magazine
January–March 2015
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