Determination of loss coefficients for micro-flow devices: A method based on the second law analysis (SLA)

H. C. Zhang; B. Schmandt; H. Herwig

doi:10.1115/MNHMT2009-18192

Determination of loss coefficients for micro-flow devices: A method based on the second law analysis (SLA)

H. C. Zhang^*
, B. Schmandt
, H. Herwig

^*Corresponding author for this work

School of Energy Science and Engineering, Harbin Institute of Technology
Hamburg University of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

21 Scopus citations

Abstract

The concept of head loss coefficients K. for the determination of losses in conduit components is discussed in detail. While so far it has only been applied to fully turbulent flows it is extended here to also cover the laminar flow regime. Specific numbers of K can be determined by integration of the entropy production field (second law analysis). This general approach is discussed and illustrated with the specific example of a conical diffusor.

Original language	English
Title of host publication	Proceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009
Pages	545-552
Number of pages	8
DOIs	https://doi.org/10.1115/MNHMT2009-18192
State	Published - 2010
Externally published	Yes
Event	ASME 2009 Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009 - Shanghai, China Duration: 18 Dec 2009 → 21 Dec 2009

Publication series

Name	Proceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009
Volume	2

Conference

Conference	ASME 2009 Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009
Country/Territory	China
City	Shanghai
Period	18/12/09 → 21/12/09

Keywords

Conduit components
Entropy production rates
Head loss coefficient
Laminar flow
Second law analysis
Upstream/downstream length

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10.1115/MNHMT2009-18192

Cite this

Zhang, H. C., Schmandt, B., & Herwig, H. (2010). Determination of loss coefficients for micro-flow devices: A method based on the second law analysis (SLA). In Proceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009 (pp. 545-552). (Proceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009; Vol. 2). https://doi.org/10.1115/MNHMT2009-18192

Zhang, H. C. ; Schmandt, B. ; Herwig, H. / Determination of loss coefficients for micro-flow devices : A method based on the second law analysis (SLA). Proceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009. 2010. pp. 545-552 (Proceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009).

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title = "Determination of loss coefficients for micro-flow devices: A method based on the second law analysis (SLA)",

abstract = "The concept of head loss coefficients K. for the determination of losses in conduit components is discussed in detail. While so far it has only been applied to fully turbulent flows it is extended here to also cover the laminar flow regime. Specific numbers of K can be determined by integration of the entropy production field (second law analysis). This general approach is discussed and illustrated with the specific example of a conical diffusor.",

keywords = "Conduit components, Entropy production rates, Head loss coefficient, Laminar flow, Second law analysis, Upstream/downstream length",

author = "Zhang, \{H. C.\} and B. Schmandt and H. Herwig",

year = "2010",

doi = "10.1115/MNHMT2009-18192",

language = "英语",

isbn = "9780791843895",

series = "Proceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009",

pages = "545--552",

booktitle = "Proceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009",

note = "ASME 2009 Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009 ; Conference date: 18-12-2009 Through 21-12-2009",

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Zhang, HC, Schmandt, B & Herwig, H 2010, Determination of loss coefficients for micro-flow devices: A method based on the second law analysis (SLA). in Proceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009. Proceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009, vol. 2, pp. 545-552, ASME 2009 Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009, Shanghai, China, 18/12/09. https://doi.org/10.1115/MNHMT2009-18192

Determination of loss coefficients for micro-flow devices: A method based on the second law analysis (SLA). / Zhang, H. C.; Schmandt, B.; Herwig, H.
Proceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009. 2010. p. 545-552 (Proceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Determination of loss coefficients for micro-flow devices

T2 - ASME 2009 Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009

AU - Zhang, H. C.

AU - Schmandt, B.

AU - Herwig, H.

PY - 2010

Y1 - 2010

N2 - The concept of head loss coefficients K. for the determination of losses in conduit components is discussed in detail. While so far it has only been applied to fully turbulent flows it is extended here to also cover the laminar flow regime. Specific numbers of K can be determined by integration of the entropy production field (second law analysis). This general approach is discussed and illustrated with the specific example of a conical diffusor.

AB - The concept of head loss coefficients K. for the determination of losses in conduit components is discussed in detail. While so far it has only been applied to fully turbulent flows it is extended here to also cover the laminar flow regime. Specific numbers of K can be determined by integration of the entropy production field (second law analysis). This general approach is discussed and illustrated with the specific example of a conical diffusor.

KW - Conduit components

KW - Entropy production rates

KW - Head loss coefficient

KW - Laminar flow

KW - Second law analysis

KW - Upstream/downstream length

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DO - 10.1115/MNHMT2009-18192

M3 - 会议稿件

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SN - 9780791843895

T3 - Proceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009

SP - 545

EP - 552

BT - Proceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009

Y2 - 18 December 2009 through 21 December 2009

ER -

Zhang HC, Schmandt B, Herwig H. Determination of loss coefficients for micro-flow devices: A method based on the second law analysis (SLA). In Proceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009. 2010. p. 545-552. (Proceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009). doi: 10.1115/MNHMT2009-18192

Determination of loss coefficients for micro-flow devices: A method based on the second law analysis (SLA)

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