An investigation is undertaken into the nature of the bubble growth rate and heat transfer suppression in the flow boiling of binary mixtures. From an examination of the well established pool boiling theory available in the literature and a consideration of factors uniquely present in flow boiling situations, it is determined that the present pool boiling theories are roughly applicable for a finite initial interval of the bubble growth cycle during flow boiling. Furthermore, it is hypothesized that the suppression of the increase in heat transfer coefficient in binary fluids which occurs after the onset of nucleate boiling is related to the suppression in bubble growth rates. Experimental data of bubble growth rate and heat transfer coefficient for flow boiling of a binary mixture of ethylene glycol and water at various conditions is acquired, and tested relative to these conclusions. The results are in agreement within the experimental range of uncertainty.
Library of Congress Subject Headings
Ebullition--Research; Nucleate boiling--Research; Fluid dynamics--Research
Department, Program, or Center
Mechanical Engineering (KGCOE)
Raykoff, Taavo, "Bubble growth rate and heat transfer suppression in the flow boiling of binary mixtures" (1996). Thesis. Rochester Institute of Technology. Accessed from
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