Details
| Original language | English |
|---|---|
| Pages (from-to) | 17-38 |
| Number of pages | 22 |
| Journal | Journal of enhanced heat transfer |
| Volume | 31 |
| Issue number | 6 |
| Early online date | 16 Feb 2024 |
| Publication status | Published - 2024 |
Abstract
For measuring the efficiency of nonmetallic heat exchangers, a mathematical model was established based on the principle of the single-blow testing technique, in which the conductive thermal resistance across nonmetallic plates of the exchangers was taken into account. The analytical solution was obtained by means of the Laplace transformation and numerical inverse transform method. The accuracy of the model was verified by comparing it with the literature. The effect of the plate Bi number on the evaluated number of transfer units (NTU) was analyzed. Based on the single-blow transient testing technique and the present model, the heat transfer performance and frictional pressure drop of four types of nonmetallic plates with different structural parameters were experimentally studied. The correlations for heat transfer and frictional pressure drop of nonmetallic heat exchange structures are established.
Keywords
- Laplace transform, lateral conductive thermal resistance, single-blow transient testing technique, transient method
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Condensed Matter Physics
- Engineering(all)
- Mechanical Engineering
- Chemical Engineering(all)
- Fluid Flow and Transfer Processes
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In: Journal of enhanced heat transfer, Vol. 31, No. 6, 2024, p. 17-38.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Analysis of the Single-Blow Transient Testing Technique for Nonmetallic Heat Exchangers
AU - Li, Wen Tao
AU - Sun, Kun
AU - Zhou, Guo Yan
AU - Tu, Shan Tung
AU - Luo, Xing
AU - Wang, Ke
AU - Kabelac, Stephan
N1 - Publisher Copyright: © 2024 Begell House Inc.. All rights reserved.
PY - 2024
Y1 - 2024
N2 - For measuring the efficiency of nonmetallic heat exchangers, a mathematical model was established based on the principle of the single-blow testing technique, in which the conductive thermal resistance across nonmetallic plates of the exchangers was taken into account. The analytical solution was obtained by means of the Laplace transformation and numerical inverse transform method. The accuracy of the model was verified by comparing it with the literature. The effect of the plate Bi number on the evaluated number of transfer units (NTU) was analyzed. Based on the single-blow transient testing technique and the present model, the heat transfer performance and frictional pressure drop of four types of nonmetallic plates with different structural parameters were experimentally studied. The correlations for heat transfer and frictional pressure drop of nonmetallic heat exchange structures are established.
AB - For measuring the efficiency of nonmetallic heat exchangers, a mathematical model was established based on the principle of the single-blow testing technique, in which the conductive thermal resistance across nonmetallic plates of the exchangers was taken into account. The analytical solution was obtained by means of the Laplace transformation and numerical inverse transform method. The accuracy of the model was verified by comparing it with the literature. The effect of the plate Bi number on the evaluated number of transfer units (NTU) was analyzed. Based on the single-blow transient testing technique and the present model, the heat transfer performance and frictional pressure drop of four types of nonmetallic plates with different structural parameters were experimentally studied. The correlations for heat transfer and frictional pressure drop of nonmetallic heat exchange structures are established.
KW - Laplace transform
KW - lateral conductive thermal resistance
KW - single-blow transient testing technique
KW - transient method
UR - http://www.scopus.com/inward/record.url?scp=85193901201&partnerID=8YFLogxK
U2 - 10.1615/JENHHEATTRANSF.2024051290
DO - 10.1615/JENHHEATTRANSF.2024051290
M3 - Article
AN - SCOPUS:85193901201
VL - 31
SP - 17
EP - 38
JO - Journal of enhanced heat transfer
JF - Journal of enhanced heat transfer
SN - 1065-5131
IS - 6
ER -