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U.S. Department of Energy
Office of Scientific and Technical Information

Diffusion Bonded Hydrogen Pre-Cooler Pressure Testing

Technical Report ·
DOI:https://doi.org/10.2172/1782682· OSTI ID:1782682
 [1];  [2];  [3]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  2. Heliogen, Pasadena, CA (United States)
  3. Vacuum Process Engineering, Inc., Sacramento, CA (United States)

Diffusion bonded heat exchangers, also known as printed circuit heat exchangers (PCHEs), have numerous benefits over traditional shell and tube heat exchangers including high pressure containment, a compact size with 1000 to 5000 m2 of surface area per unit volume, and lower costs. One emerging application is in hydrogen vehicle fueling stations as a hydrogen pre-cooler (H2PC™) where the hydrogen is cooled at pressures up to 900 bar. These pre-coolers must be able to withstand pressure cycling over 105 cycles during the fueling station lifetime without degradation of their pressure vessel integrity that could result in hydrogen leakage.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE Office of Nuclear Energy (NE)
DOE Contract Number:
AC04-94AL85000
OSTI ID:
1782682
Report Number(s):
SAND2021-5546R; 696039
Country of Publication:
United States
Language:
English

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