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ISSN Online: 2377-424X

ISBN Print: 0-85295-345-3

International Heat Transfer Conference 10
August, 14-18, 1994, Brighton, UK

BOILING HEAT TRANSFER CHARACTERISTICS FROM VERY SMALL HEATERS ON A SUBSTRATE

Get access (open in a dialog) DOI: 10.1615/IHTC10.4560
pages 51-56

Аннотация

Boiling heat transfer from small heating elements on a glass substrate is studied. In the present work, two types of glass substrates are prepared in order to study size, distance and number effects on the heat transfer characteristics. Boiling curves show significant change from conventional flat plate heater behavior to conduction governed behavior with decreasing heater size. However, sharp drop of the temperature of the smallest heater suggests that the heater temperature is not simply determined by substrate conduction at the instance of bubble departure. Both distance and number of heaters have influence on the bubble behavior and heater temperature.