HIGH EFFICIENCY MICRO-POWER GENERATOR FOR PORTABLE APPLICATIONS
Abstract
Recent developments with a micro-scale partial oxidation reformer and robust micro-tubular solid oxide fuel cell (SOFC) geometry have unlocked the potential for portable power units that can be small and lightweight for military applications. Fundamental advancesare still needed to explore micro-scale partial oxidation of logistic fuels, like JP-8 and windshield washer fluid, that are more readily available to the warfighter. We propose to investigate hydrogen and soot precursor formation at intermediate temperatures (1000-1600K) in a micro-flow reactor with premixed JP-8/air and windshield washer fluid/air. Recent advances in micro-tubular SOFCs integrated with the micro-scale partial oxidation reformers have led to systems that can undergo thermal shock cycling over thousands of cycles compared to traditional SOFCs. Despite the advances, a framework for understanding and mitigating mechanical and electrochemical degradation over tens, hundreds and thousands of cycles is lacking. Ceramic processing, experimental testing, and characterization will be integrated to assess the degradation mechanisms and their changes with the increased number of thermal shock cycles. Key novelties of this study include characterization of hydrogen generation from logistic fuels in a micro-scale partial oxidation reformer, characterization of SOFCs with thousands of thermal shock cycles and utilization of micro computed tomography for electrode/electrolyte structural change to assess degradation mechanisms under thermal cyclic loading. Advancements in these areas will enable further prototype development in year 2 of the project to achieve high specific energy, high energy density and operation with logistic fuels during rapid startup and cycling conditions. Approved for Public Release
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jul 24, 2023
- Source ID
- N000142312706
Entities
People
- Ryan J Milcarek
Organizations
- Arizona State University
- Office of Naval Research
- United States Navy