Accession Number : ADA136721

Title :   Cross Flow Boiling in Tube Bundles.

Descriptive Note : Annual technical rept. 1 Aug 82-1 Aug 83,

Corporate Author : CARNEGIE-MELLON UNIV PITTSBURGH PA DEPT OF MECHANICAL ENGINEERING

Personal Author(s) : Yao,S C

PDF Url : ADA136721

Report Date : Oct 1983

Pagination or Media Count : 82

Abstract : The research on boiling in confined spaces has been completed. This problem is of great importance to the boiling induced corrosion in the steam generator crevices between the tube and the support structures. In the report of 1981, analysis of single phase flow, two phase flow, and dryout in crevices have been presented. Experimental results of boiling and dryout in vertical crevices with closed bottom were also reported. In the report of 1982, the results of forced convective boiling heat transfer and critical heat flux in crevices are shown. In this report, the boiling heat transfer and critical heat flux in horizontal crevices are reported. The research on cross flow boiling in tube bundles proceeds smoothly. In this report, the analysis of single phase flow pressure drop and convective heat transfer in tube bundles at cross flow of very low or very high Reynolds numbers are presented. The experimental setup has been completed and data are taken presently.

Descriptors :   *Boiler tubes, *Cross flow, *Boiling, *Heat transfer, Convection(Heat transfer), Tubes, Bundles, Corrosion, Steam, Generators, Heat flux

Subject Categories : Air Condition, Heating, Lighting & Ventilating
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE