Load Responsive Hydrogen Generator for UUV Application

Period of Performance: 09/20/1993 - 03/19/1994

$726K

Phase 2 SBIR

Recipient Firm

AF Sammer Corp.
303 Najoles Road, Suite 106
Millersville, MD 21108
Principal Investigator

Research Topics

Abstract

A program for the development of a hydrogen generator for use with PEM fuel cells in UUV applications is proposed. Pressurized hydrogen is generated by reacting alkali-metal hydrides with water to be derived from the PEM fuel cell. Energy densities approach 1 Kw-hr/lb. The proposed effort is concerned with the design, fabrication, and evaluation of a generator with 50 Kw-hr. capacity capable of sustaining PEM cell operation at the 3 KW output level. The hydrogen generator is gas cooled, unaffected by vehicle position and motion and serves as a precursor for a generator to be developed for the 21" vessel. Futhermore, under the proposed effort, subsystem design and test data are being developed, which are aimed at maximizing space utilization. This information is incorporated in the design of a generator with 500 Kw-hr. capacity to be used in the 44" vessel. ANTICIPATED BENEFITS: The hydrogen generator to be developed under the proposed program, if combined with PEM fuel cells for power generation, oferrs energy densitities substantially superior to batteries in UUV, man portable, or standby applications.