Abstract
An equivalent single-tube model concept was extended to predict the frequency-response characteristics of multitube two-phase condensing flow systems, complete with the ability to predict the influence of compressibility and thermal and flow distribution asymmetry. The predictive capability of the equivalent single-tube model was verified experimentally with extensive data that encompassed a three-order-of-magnitude range of frequencies, and a wide range of operating parameters. [S0022-1481(00)00601-0]
Issue Section:
Technical Notes
1.
Kobus
, C.
J.
,
Wedekind
, G.
L.
, and
Bhatt
, B.
L.
, 1998
,
“Application of an Equivalent Single-Tube Model for
Predicting Frequency-Response Characteristics of Multitube Two-Phase
Condensing Flow Systems With Thermal and Flow Distribution
Asymmetry
,” ASME J. Heat Transfer
,
120
, No. 2
, pp.
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–530
.2.
Wedekind
, G.
L.
,
Kobus
, C.
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, and
Bhatt
, B.
L.
, 1997
,
“Modeling the Characteristics of Thermally Governed Transient
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Compressibility and Thermal and Flow Distribution
Asymmetry
,” ASME J. Heat Transfer
,
119
, No. 3
, pp.
534
–543
.3.
Bhatt
, B.
L.
, and
Wedekind
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, 1980
,
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Two-Phase Condensing Flows: With and Without
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” ASME J. Heat Transfer
,
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, pp.
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.4.
Zivi
, S.
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, 1964
,
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the Principle of Minimum Entropy Production
,” ASME
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.5.
Kobus, C. J., 1998, “Application of the System Mean Void Fraction
Model in Formulating an Equivalent Single-Tube Model for Predicting Various
Transient and Unstable Flow Phenomena Associated with Horizontal Multitube
Two-Phase Condensing Flow Systems With and Without the Effects of
Compressibility, Inertia, and Thermal and Flow Distribution Asymmetry,” Ph.D.
thesis,Oakland University, Rochester, MI.
Copyright © 2000
by ASME
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