Advanced

A general criterion for evaporative heat transfer in micro/mini-channels

Li, Wei and Wu, Zan LU (2010) In International Journal of Heat and Mass Transfer 53(9). p.1967-1976
Abstract
This paper presents a general criterion to classify a channel as micro-channel or macro-channel. Experimental results of saturated-flow boiling heat transfer in micro/mini-channels for both multi- and single-channel configurations were obtained from the literature. The collected database contains 4228 data points, covering a wide range of working fluids, operational conditions, and different micro-channel dimensions. Seven existing correlations were evaluated against the database to verify their respective accuracies. A combined non-dimensional number Bo * Rel0.5 = 200 was introduced as the new conventional-to-micro/mini-channel criterion. In addition, a generalized prediction method was proposed based on the new criterion, with accurate... (More)
This paper presents a general criterion to classify a channel as micro-channel or macro-channel. Experimental results of saturated-flow boiling heat transfer in micro/mini-channels for both multi- and single-channel configurations were obtained from the literature. The collected database contains 4228 data points, covering a wide range of working fluids, operational conditions, and different micro-channel dimensions. Seven existing correlations were evaluated against the database to verify their respective accuracies. A combined non-dimensional number Bo * Rel0.5 = 200 was introduced as the new conventional-to-micro/mini-channel criterion. In addition, a generalized prediction method was proposed based on the new criterion, with accurate predictive capability. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
International Journal of Heat and Mass Transfer
volume
53
issue
9
pages
1967 - 1976
publisher
Pergamon
external identifiers
  • scopus:76749099219
ISSN
0017-9310
language
English
LU publication?
no
id
a2689575-ef35-471e-83bf-6d080eb65685 (old id 4285440)
date added to LUP
2014-02-06 15:20:19
date last changed
2018-05-29 10:32:50
@article{a2689575-ef35-471e-83bf-6d080eb65685,
  abstract     = {This paper presents a general criterion to classify a channel as micro-channel or macro-channel. Experimental results of saturated-flow boiling heat transfer in micro/mini-channels for both multi- and single-channel configurations were obtained from the literature. The collected database contains 4228 data points, covering a wide range of working fluids, operational conditions, and different micro-channel dimensions. Seven existing correlations were evaluated against the database to verify their respective accuracies. A combined non-dimensional number Bo * Rel0.5 = 200 was introduced as the new conventional-to-micro/mini-channel criterion. In addition, a generalized prediction method was proposed based on the new criterion, with accurate predictive capability.},
  author       = {Li, Wei and Wu, Zan},
  issn         = {0017-9310},
  language     = {eng},
  number       = {9},
  pages        = {1967--1976},
  publisher    = {Pergamon},
  series       = {International Journal of Heat and Mass Transfer},
  title        = {A general criterion for evaporative heat transfer in micro/mini-channels},
  volume       = {53},
  year         = {2010},
}