Hybrid Pixel Miniaturization

The conceptual design of a safe, small thermoelectric generator (STEG) is being completed in Phase I. The overall objective is an environmentally friendly replacement for radiolumenescent lamps used in fire control instruments. Hi-Z will continueexploratory development of power sources for illumination that utilize thermoelectric direct heat to electric conversion. A design optimization will be conducted focusing on a 1 to 2 watt thermoelectric generator fueled by military logistics fuel (dieselor jet fuel). For the heat source we take advantage of another innovative technology being developed under separate Army SBIR. This is the Low Cost Pocket Stove utilizing the Porous Surface Element wick. Prototype generators will be fabricated, testedand delivered. Technologies and hardware will be identified to support fabrication in Phase III. In addition, similar generators at lower and higher power output will be built and demonstrated. Lower power (100 to 300 MW) suits replacement of individualradio luminescent lamps, but at this size butane fuel is necessary. At higher power (to 30 W), the generator can also serve as a battery charger power supply. Throughout the range of output power to be considered, the generator concept fits variousmilitary power requirements that are presently met with chemical batteries (primary or rechargeable). Further work will continue to research the alternative possibilities of tritium and molten salt heat sources.