Experimental study on multi-mode methanol flow boiling
Journal
American Society of Mechanical Engineers, Heat Transfer Division
Journal Volume
326
Pages
153-156
Date Issued
1996
Author(s)
Lin W.W.
Abstract
Flow boiling of methanol over a nonuniform, indirect conduction heating surface is investigated experimentally. An axial (discrete) heat flux distribution corresponding to a neutral stability region where nucleate and film boiling can coexist steadily is identified. Below such a heat flux distribution, nucleate boiling mode is more stable. Above this distribution, film boiling mode becomes more stable. An equal-area criterion based on difference between bottom heat flux and surface boiling heal flux and the surface temperature date is employed for interpreting the experimental data, and reasonable agreement is obtained. The differences between average and real transition boiling curves are discussed as well.
Type
journal article