Relative stability between nucleate and film boiling on a nonuniformly heated plate surface
Journal
Journal of Heat Transfer
Journal Volume
119
Journal Issue
2
Pages
326-331
Date Issued
1997
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. We had employed an equal-area criterion for interpreting the heat flux and wall superheat relationship. Analogy between the wire boiling system is proposed. The differences between average and real transition boiling curves are discussed as well. ? 1997 by ASME.
Subjects
Boiling
Conduction
Phase-Change Phenomena
SDGs
Type
journal article