The goal of the MEMS Rotary Engine Power System (MEMS REPS) is to develop an autonomous, commercially viable, portable power system based on an integrated AC generator and rotary internal combustion engine. This engine will have an energy density of 2300 W-hr/kg with a continuous power output of 30mW, which represents a 5x to 16x increase over commercial off-the-shelf (COTS) batteries (alkaline, lithium-ion and zinc-air).
The design also allows for rapid field implementation in a variety of applications requiring localized power generation in the range of 10 to 500 milliwatts. Applications include interconnected sensor networks or land warrior power supplies. In Figure 1 is shown a MEMS REPS power pack that is suitable for use in a mobile phone.
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