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Title: CSTT Update: Fuel Quality Analyzer

Abstract

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.

Authors:
ORCiD logo [1];  [1]; ORCiD logo [1]; ORCiD logo [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE). Fuel Cell Technologies Program (EE-3F)
OSTI Identifier:
1492560
Report Number(s):
LA-UR-19-20109
DOE Contract Number:  
89233218CNA000001
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
Energy Sciences

Citation Formats

Rockward, Tommy, Romero, Christopher Jesse, Brosha, Eric Lanich, and Mukundan, Rangachary. CSTT Update: Fuel Quality Analyzer. United States: N. p., 2019. Web. doi:10.2172/1492560.
Rockward, Tommy, Romero, Christopher Jesse, Brosha, Eric Lanich, & Mukundan, Rangachary. CSTT Update: Fuel Quality Analyzer. United States. doi:10.2172/1492560.
Rockward, Tommy, Romero, Christopher Jesse, Brosha, Eric Lanich, and Mukundan, Rangachary. Wed . "CSTT Update: Fuel Quality Analyzer". United States. doi:10.2172/1492560. https://www.osti.gov/servlets/purl/1492560.
@article{osti_1492560,
title = {CSTT Update: Fuel Quality Analyzer},
author = {Rockward, Tommy and Romero, Christopher Jesse and Brosha, Eric Lanich and Mukundan, Rangachary},
abstractNote = {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.},
doi = {10.2172/1492560},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {1}
}

Technical Report:

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