Alkaline Fuel Cell Technology for Mitigating Hydrogen Generated by Mg/Fe Based Chemical Heaters
Abstract
The Unitized Group Ration - Express (UGR-E) is a disposable, compact, self-contained module that provides a complete, hot meal for 18 warfighters. The UGR-E contains four shelf-stable polymeric food trays that are coupled to four magnesium based chemical heaters. With the pull of a tab, the food is heated within 45 minutes. Unfortunately, upon activation, the magnesium based heaters release a hydrogen by-product. Given that 400g of heater materials is needed for the UGR-E, the amount of released hydrogen gas (approximately 11 cubic ft) is formidable and could pose a safety risk if the lower explosive limit is exceeded. In addition to mitigating this safety risk, it is also desired to sue this energy (320 BTU/cubic ft H2) in the form of either heat or electricity. To address this problem, a lightweight, affordable, disposable alkaline fuel cell (AFC) has been developed in a Phase 1 Army SBIR Contract.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 2004
- Accession Number
- ADA433363
Entities
People
- M. C. Kimble
- P. Dellarocca
- P. Lavigne