EFFECT OF SPACER DENSITY ON HEAT TRANSFER AND PRESSURE DROP IN THE ART FUEL- TO-NaK HEAT EXCHANGER

Technical Report · Wed Oct 10 00:00:00 EDT 1956

DOI:https://doi.org/10.2172/4209695· OSTI ID:4209695

Wantland, J K

Heat transfer and isothermal friction characteristics of the experimental ART fuel-to-NaK heat exchanger have been determined for three degrees of spacer density. The data appear to indicate that for a given heat exchanger pressure drop, the heat transfer cocfficient is almost independent of the spacer density; as the spacer density is decreased, the Reynolds modulus increases to such an extent that the Nusselt modulus does not change significantly. For a given available pressure drop, with decreased spacer density, a larger flow rate exists allowing the same heat removal rate with a lower axial temperature change or a greater heat removal rate with the same axial temperature change. (auth)

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• NSA Number: NSA-13-021428
• OSTI ID: 4209695
• Report Number(s): CF-56-10-39
• Resource Relation: Other Information: Decl. Sept. 15, 1959. Orig. Receipt Date: 31-DEC-59
• Country of Publication: United States
• Language: English

Related Subjects

PHYSICS AND MATHEMATICS
DENSITY
FLUID FLOW
HEAT TRANSFER
MEASURED VALUES
NUSSELT NUMBER
POTASSIUM ALLOYS
PRESSURE
REYNOLDS NUMBER
SODIUM ALLOYS
SPACERS
TURBULENCE