Experimental investigation of heat transfer and burnout in condition of nonuniform megawatt heat fluxes
- 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), Journal Name: Experimental Heat Transfer; (United States) Vol. 4:3; ISSN 0891-6152; ISSN EXHTE
- Country of Publication:
- United States
- Language:
- English
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