Affiliation:
1. Centre for Osmosis Research and Applications (CORA), Chemical and Process Engineering Department, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, UK
Abstract
An analytical model for the convective heat transfer coefficient and the
two-phase bubble size of a three-phase direct contact heat exchanger was
developed. Until the present, there has only been a theoretical model
available that deals with a single two-phase bubble and a bubble train
condensation in an immiscible liquid. However, to understand the actual heat
transfer process within the three-phase direct contact condenser,
characteristic models are required. A quasi - steady energy equation in a
spherical coordinate system with a potential flow assumption and a cell model
configuration has been simplified and solved analytically. The convective
heat transfer in terms of Nu number has been derived, and it was found to be
a function to Pe number and a system void fraction. In addition, the
two-phase bubble size relates to the system void fraction and has been
developed by solving a simple energy balance equation and using the derived
convective heat transfer coefficient expression. Furthermore, the model
correlates well with previous experimental data and theoretical results.
Publisher
National Library of Serbia
Subject
Renewable Energy, Sustainability and the Environment
Cited by
9 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献