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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)
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author
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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 Press Ltd.
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
2016-04-01 10:03:09
date last changed
2022-04-27 17:57:17
@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 Press Ltd.}},
  series       = {{International Journal of Heat and Mass Transfer}},
  title        = {{A general criterion for evaporative heat transfer in micro/mini-channels}},
  volume       = {{53}},
  year         = {{2010}},
}