CSTT Update: Fuel Quality Analyzer
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Presentation summary: A Nafion® based, electrochemical hydrogen contaminant detector was tested at H2Frontier hydrogen filling station in Burbank CA during its refit and recommissioning.; A 100 sccm sample was taken from the H2F production skid and without requiring humidification; both real-time product gas and storage gas was sampled. The selfhumidifying approach using an internal reservoir worked with minimal baseline drift.; The LANL HCD easily detected CO byproduct during reformer restart (as high as 18ppm) and 11, 1ppm challenges were performed during an 850h experiment after initial installation and 10ppm testing/commissioning.; The 10ppm and 1ppm challenges produced ≈ 75% and ≈ 60% reductions in pumping current respectively. Twelve, 1ppm challenges decreased pumping current on average of 59.5% with an error of ±1.4% over 12 challenges during a 6 month time period.; Long term baseline data show a drift rate of 9x10-7 A/h over a 600h period of testing. The addition of a 1.5V, 600s pulse approximately once a day eliminated any long term drift.; No false positives or false negatives were seen during the field tests to date.; Average water consumption rate is estimated to be ~250μl/day at 100sccm.; Project milestones successfully met.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE). Fuel Cell Technologies Program (EE-3F)
- DOE Contract Number:
- 89233218CNA000001
- OSTI ID:
- 1492560
- Report Number(s):
- LA-UR-19-20109
- Country of Publication:
- United States
- Language:
- English
Similar Records
New High Performance Water Vapor Membranes to Improve Fuel Cell Balance of Plant Efficiency and Lower Costs
Editors' Choice—Field Trials Testing of Mixed Potential Electrochemical Hydrogen Safety Sensors at Commercial California Hydrogen Filling Stations