In hydrogen storage systems, thermal management is an essential component of tank design. This state- of-the-art thermal conductivity instrument has a unique range of capabilities. The experimental apparatus designed and built by National Renewable Energy Laboratory (NREL) scientists allows the measurements of the thermal conductivity, diffusivity, and volumetric heat capacity of powder materials for pressures ranging from ~20 mbar to 80 bar; temperatures ranging from 40 K to 300 K; and gases such as Ar, He, and H2. To this end, the transient plane source method, as described by Gustafsson, is employed.
- Utilizes, H2, He (other gases possible) from vacuum to 80 bar
- Has an excellent temperature range: 40 K to 300 K
- Sample types include solids, compressed pucks, and powder
S. Gustafsson, Review of Scientific Instruments 62 (1991): 797