Multiphase Science and Technology A Quarterly

ISSN for PRINT: 0276-1459

For Online Access

Best Paper Award Selection - Editorial Board Site

2000, Volume12

Issue 3&4

302 pages

Issue price - $280.00

Nagaraja Yaddanapudi
University of Maryland, Department of Mechanical Engineering College Park, MD 20742, USA

Jungho Kim
University of Maryland, Department of Mechanical Engineering College Park, MD 20742, USA

A study of single bubbles growing on a microscale heater array kept at nominally constant temperature was performed. The heater array consisted of 96 heaters each nominally 0.27 mm × 0.27 mm in size. The heater temperatures were kept constant using electronic feedback loops similar to those used in hot-wire anemometry, and the power required to do this was measured throughout the bubble departure cycle for each heater in the array. Data were obtained at a wall superheat of 22.5 °C during saturated pool boiling of FC-72. Bubbles were observed to nucleate from a single site on the surface at this temperature. Evaluation of various heat transfer models are made.

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