Abo Bibliothek: Guest

ISSN Online: 2377-424X

ISBN Print: 0-89116-909-1

International Heat Transfer Conference 9
August, 19-24, 1990 , Jerusalem, Israel

POOL BOILING HEAT TRANSFER FROM COMPOSITE SOLED WALL

Get access (open in a dialog) DOI: 10.1615/IHTC9.3950
pages 307-310

Abstrakt

The performance of composite solid wall (with various conductivity of basic and inserted material) was investigated for boiling heat transfer. The composite structure is used in order to adjust the thermal resistance between the isothermal heat source and boiling liquid. Experimental data were obtained for four wall types in Freon-113 pool boiling at atmospheric pressure. The base was copper plate with triangular or rectangular gutters in which Ni-Cr steel strips were inserted with volume rate from 0.1 to 0.35.
A numerical program assuming two-dimensional heat flow and the wall of unit lenght was used successfully to predict the performance of these composite heating elements. The results proved it possible to extend the superheating region (safety region) with high flux values, comparing with single material heating surface and pointed to the optimal variant for needed boiling curve.