Experimental investigation of heat transfer and burnout in condition of nonuniform megawatt heat fluxes

Journal Article · Tue Jan 01 00:00:00 EST 1991 · Experimental Heat Transfer; (United States)

DOI:https://doi.org/10.1080/08916159108946419· OSTI ID:5726727

Komendantov, A S; Kuzma-Kichta, Y A; Vasil'eva, L T; Ovodkov, A A ^[1]

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1. Moscow Power Engineering Inst., Moscow (SU)

In this paper burnout is investigated in tubes under nonuniform heating on the perimeter. Data on heat transfer and critical heat flux (q{sub chf}) in the case of water were obtained for ranges of mass velocity {rho}w = 200--3000 kg/m{sup 2} s, pressure p = 1--1 MPa, and inlet water temperature T = 25--98{degrees}C. The test section was a horizontal copper tube of 21 mm outer diameter, 8 mm inner diameter with a technically smooth surface and heat transfer-intensifying twisted tape and porous sintered coating. The test section was heated by bombardment with electrons. It is established that a redistribution of heat fluxes and an increase of wall temperature fluctuations occur at burnout. The range of regime parameters to prevent burnout of a heat transfer surface is determined.

• OSTI ID: 5726727
• Journal Information: Experimental Heat Transfer; (United States), Vol. 4:3; ISSN 0891-6152
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
CRITICAL HEAT FLUX
DATA ANALYSIS
SURFACES
HEAT TRANSFER
WATER
TEMPERATURE DISTRIBUTION
FLUCTUATIONS
MASS TRANSFER
VELOCITY
ENERGY TRANSFER
HEAT FLUX
HYDROGEN COMPOUNDS
OXYGEN COMPOUNDS
VARIATIONS
420400* - Engineering- Heat Transfer & Fluid Flow