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Hydrogen gas generation in water heat pipes

Journal Article · · J. Eng. Mater. Technol.; (United States)
DOI:https://doi.org/10.1115/1.3443496· OSTI ID:6593380
Water heat pipes were fabricated from 316, 347, and 430 stainless steel, Monel 400, CDA 715, Inconel 600, and Incoloy 800. All of these materials generated varying amounts of hydrogen gas during the first few days of operation. However, as the heat pipes continued to operate, the amount of gas in each heat pipe, excluding 430 stainless steel, decreased by permeating through the heat pipe walls. Inconel 600 appeared to be the most acceptable material for water heat pipes by returning to isothermal operation over a short time period. An equation based on a diffusion dependent mechanism was developed that predicts heat pipe performance recovery rates.
Research Organization:
McDonnell Douglas Astronautics Co., Huntington Beach, CA
OSTI ID:
6593380
Journal Information:
J. Eng. Mater. Technol.; (United States), Journal Name: J. Eng. Mater. Technol.; (United States) Vol. 100:3; ISSN JEMTA
Country of Publication:
United States
Language:
English