CAPTURE COEFFICIENTS OF GASES AT 77 K,
Abstract
The capture coefficients for thirteen common gases at 77K cryosurface temperatures are presented. Several parameters were employed for correlating these capture coefficients. It was found that generally the capture coefficient decreased with decreasing molecular weight, decreasing heat of condensation, and increasing Debye characteristic temperature. Hydrogen bonding in a molecule tended to increase the capture coefficient beyond the expected value. Two empirical parameters one involving surface area of the molecule and the square root of the molecular weight, and the other involving surface energy of the molecule and the inverse square root of the molecular weight appear to give the satisfactory correlation for capture coefficients. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1964
- Accession Number
- AD0438484
Entities
People
- E. S. J. Wang
- R. F. Brown
Organizations
- Arnold Engineering Development Complex