Boiling crisis burnout in the zone of interaction of a circular submerged water jet with a flat wall

Journal Article · Mon Jan 01 04:00:00 EST 1990 · Heat Transfer - Soviet Research; (United States)

OSTI ID:5273932

Maceika, A A; Skema, R K ^[1]

---

1. Inst. of Problems of Energetics, Lithuanian Academy of Sciences (SU)

This paper reports on experimental results on heat transfer coefficients and burnout in developed nucleate boiling of subcooled water in the zone of interaction between a circular submerged jet and a wall liberating high heat fluxes. It is proved that the heat transfer coefficients and the critical heat flux densities under these circumstances are very high ({alpha} = 10{sup 6} W/m{sup 2}-{degrees}K and q{sub cr} = 6 {center dot} 10{sup 7} W/m{sup 2}). These experimental data are employed for deriving an expression for the dependence of the burnout flux q{sub cr} in boiling of water in the stagnation point of the jet on the jet velocity and on subcooling of water. We find that q{sub cr} is a function of the ratio D/d of the diameter of the wall being cooled to the diameter of the jet-producing nozzle. The maximum values of q{sub cr} are attained at D/d = 2, a ratio which defines the optimum wall area for cooling with a single jet.

• OSTI ID: 5273932
• Journal Information: Heat Transfer - Soviet Research; (United States), Journal Name: Heat Transfer - Soviet Research; (United States) Vol. 22:5; ISSN 0440-5749; ISSN HTSRA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
BOILING
COOLING
ENERGY TRANSFER
HEAT TRANSFER
HYDROGEN COMPOUNDS
JETS
NUCLEATE BOILING
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
THERMODYNAMICS
WALLS
WATER