The effect of a gas dissolved in a coolant on boiling and burnout heat transfer

Journal Article · Sat Mar 01 04:00:00 EST 1986 · Heat Transfer - Sov. Res.; (United States)

OSTI ID:5396773

Yezhova, L I; Polyakov, V K; Polyakov, R Y; Smolin, V N

Experiments were conducted to determine the effect of nitrogen dissolved in water on boiling and burnout heat transfer in a cylindrical pipe. Gas liberation from a liquid was found to enhance heat transfer. In the region of subcooled boiling a reduction of the critical heat flux up to about 20% was observed when in the region of burnout development the coolant was degassed at rather a high rate (high pressure and mass flow rates). As the subcooling becomes smaller the difference between q/sub cr/ for a degassed and a gas-saturated boiling coolant decreases. On the attainment of a thermally equilibrium two-phase flow the values of q/sub cr/ practically coincide for both cases.

• Research Organization: Scientific Research and Designing Institute of Power Engineering, Moscow
• OSTI ID: 5396773
• Journal Information: Heat Transfer - Sov. Res.; (United States), Journal Name: Heat Transfer - Sov. Res.; (United States) Vol. 17:2; ISSN HTSRA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
BOILING
BURNOUT
COOLANTS
COOLING
CRITICAL HEAT FLUX
DEGASSING
DISSOLVED GASES
ELEMENTS
ENERGY TRANSFER
EQUILIBRIUM
FLOW RATE
FLUID FLOW
FLUIDS
GAS FLOW
GAS SATURATION
GASES
HEAT FLUX
HEAT TRANSFER
HYDROGEN COMPOUNDS
NITROGEN
NONMETALS
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PIPES
PRESSURE DEPENDENCE
RESEARCH PROGRAMS
SATURATION
SOLUTES
SUBCOOLED BOILING
SUBCOOLING
TEMPERATURE EFFECTS
THERMAL EQUILIBRIUM
TWO-PHASE FLOW
WATER