Mesoscopic Devices will demonstrate a novel approach to an integrated reformer, SOFC stack, and system design that will make fuel cell generators practical for unmanned underwater vehicle (UUV) applications. The new design will greatly reduce overall system complexity while simultaneously maximizing system efficiency and minimizing size. Simplicity, efficiency, and size are all critical parameters for UUV power generators that must be reliable and simple to use at sea while also achieving aggressive energy density goals. Preliminary system modeling indicates that the proposed approach will exceed an energy density of 400 W-h/L, and may reach beyond 550 W-h/L. This energy density, which includes the oxidant and storage system, is made possible by the expected high system efficiency of 42% and compact generator design. Phase I will prove technical feasibility by demonstrating key fabrication methods and operating performance of a subscale system based on the new technology.
Keywords: UUV, SOLID OXIDE FUEL CELL, REFORMER, SOFC, STACK FABRICATION
