- Author
-
McLinden, M. O.
- Title
- Working Fluid Selection for Space-Based Two-Phase Heat Transport Systems.
- Coporate
- National Bureau of Standards, Gaithersburg, MD
- Sponsor
- National Aeronautics and Space Administration, Greenbelt, MD
- Report
-
NBSIR 88-3812,
August 1988,
75 p.
- Distribution
- Available from National Technical Information Service
- Keywords
-
heat transport
|
cold plate
|
fluid properties
|
refrigerants
|
working fluids
- Abstract
- The working fluid for externally-mounted space-based two-phase heat transport systems is considered. A sequence of screening criteria involving freezing and critical point temperatures and latent heat of vaporization and vapor density are applied to a data base of 860 fluids. The thermal performance of the 52 fluids which pass this preliminary screening are then ranked according to their impact on the weight of a reference system. Upon considering other non-thermal criteria (flammability, toxicity and chemical stability) a final set of 10 preferred fluids is obtained. The effects of variations in system parameters is investigated for these 10 fluids by means of a factorial design.