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Effect of fluid mixing on heat transfer in channels with porous inserts

Journal Article · · High Temp. (Engl. Transl.); (United States)
OSTI ID:6364333
; ; ;

A method is described and results are presented in regard to measurement of the effective transverse thermal conductivity of a fluid moving in a porous medium. It is shown that agitation of the fluid has an appreciable effect on heat transfer and the critical thermal loads in channels with porous inserts. The model made it possible to explain and quantitatively describe the effect the rate of mixing of the heat carrier has on the heat transfer of the wall and the temperature distribution in a channel in the case of single-phase convection, as well as on the limiting thermal loads during the boiling of a subheated fluid and on the thickness of the vapor boundary layer. Brass and stainless steel wire mesh inserts were used with water in the experiments.

Research Organization:
Moscow Physical-Engineering Institute (USSR)
OSTI ID:
6364333
Journal Information:
High Temp. (Engl. Transl.); (United States), Journal Name: High Temp. (Engl. Transl.); (United States) Vol. 25:5; ISSN HITEA
Country of Publication:
United States
Language:
English

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Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320302* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Materials
320303 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
ALLOYS
BOILING
BOUNDARY LAYERS
BRASS
CONVECTION
COOLANTS
COOLING SYSTEMS
COPPER ALLOYS
COPPER BASE ALLOYS
EFFICIENCY
ENERGY SYSTEMS
ENERGY TRANSFER
FLUID FLOW
FLUID MECHANICS
FLUIDS
GASES
HEAT FLUX
HEAT TRANSFER
HEAT TRANSFER FLUIDS
HIGH ALLOY STEELS
HYDRAULIC CONDUCTIVITY
HYDRAULICS
HYDROGEN COMPOUNDS
IRON ALLOYS
IRON BASE ALLOYS
LAYERS
MASS TRANSFER
MATERIALS
MATHEMATICAL MODELS
MECHANICS
MIXING
OPTIMIZATION
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PIPES
POROUS MATERIALS
STAINLESS STEELS
STEELS
TEMPERATURE DISTRIBUTION
THERMAL CONDUCTIVITY
THERMAL EFFICIENCY
THERMODYNAMIC PROPERTIES
TWO-PHASE FLOW
VAPORS
WATER
WIRES
ZINC ALLOYS