Neutron Computed Tomography of Freeze/thaw Phenomena in Polymer Electrolyte Fuel Cells

Matthew M. Mech ; Jack Brenizer ; Kenan Unlu ; A.K. Heller

关键词: COMPUTERIZED TOMOGRAPHY;    DESIGN;    DISTRIBUTION;    FUEL CELLS;    NEUTRONS;    PROTON EXCHANGE MEMBRANE FUEL CELLS;    WATER;   

DOI  :  10.2172/950836
RP-ID  :  DOE/ID/14701
PID  :  OSTI ID: 950836
Others  :  TRN: US200911%%302

学科分类：能源（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

This report summarizes the final year's progress of the three-year NEER program. The overall objectives of this program were to 1) design and construct a sophisticated hight-resolution neutron computed tomography (NCT) facility, 2) develop novel and sophisticated liquid water and ice quantification analysis software for computed tomography, and 3) apply the advanced software and NCT capability to study liquid and ice distribution in polymer electrolyte fuel cells (PEFCs) under cold-start conditions. These objectives have been accomplished by the research team, enabling a new capability for advanced 3D image quantification with neutron imaging for fuel cell and other applications. The NCT water quantification methodology and software will greatly add to the capabilities of the neutron imaging community, and the quantified liquid water and ice distribution provided by its application to PEFCs will enhance understanding and guide design in the fuel cell community.