Numerical analysis of pressure drop oscillations in parallel channels

被引：25

作者：

Chiapero, E. Manavela ^{[1
]}

Fernandino, M. ^{[1
]}

Dorao, C. A. ^{[1
]}

机构：

[1] Norwegian Univ Sci & Technol, Dept Energy & Proc Engn, N-7491 Trondheim, Norway

来源：

INTERNATIONAL JOURNAL OF MULTIPHASE FLOW | 2013年 / 56卷

关键词：

Two-phase flow instabilities; PDO; Parallel channels; Thermal capacity; 2-PHASE FLOW INSTABILITY; VERTICAL BOILING CHANNEL; UPFLOW SYSTEM; HEAT-TRANSFER; DYNAMIC INSTABILITIES; FORCED-CONVECTION; PIPES; TUBES;

D O I：

10.1016/j.ijmultiphaseflow.2013.05.010

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

In this study pressure drop oscillations in two parallel channels are analyzed taking into account the thermal capacity of the pipes. A different limit cycle than the one that takes place in a single channel system is found. During the instability one channel always follows the typical pressure drop oscillations limit cycle while the other channel oscillates always in the superheated vapor region. This behavior leads to very high wall temperatures at the outlet of the heated pipe. This undesirable situation with one channel operating in the superheated vapor region takes place also for the maldistributed stable solutions. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：15 / 24

页数：10

共 45 条

[1]

Akagawa Koji., 1971, Bulletin of JSME, V14, P837

[2] INSTABILITIES IN PARALLEL CHANNEL OF FORCED-CONVECTION BOILING UPFLOW SYSTEM .3. SYSTEM WITH DIFFERENT FLOW CONDITIONS BETWEEN 2 CHANNELS [J].

ARITOMI, M ;

AOKI, S ;

INOUE, A .

JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, 1979, 16 (05) :343-355

[3]

BOURE JA, 1973, NUCL ENG DES, V25, P165, DOI 10.1016/0029-5493(73)90043-5

[4] The effects of thermal non-equilibrium and inlet temperature on two-phase flow pressure drop type instabilities in an upflow boiling system [J].

Cao, L ;

Kakaç, S ;

Liu, HT ;

Sarma, PK .

INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2000, 39 (9-11) :886-895

[5] Review on pressure drop oscillations in boiling systems [J].

Chiapero, E. Manavela ;

Fernandino, M. ;

Dorao, C. A. .

NUCLEAR ENGINEERING AND DESIGN, 2012, 250 :436-447

[6] AN ANALYSIS OF STABILITY AND OSCILLATION MODES IN BOILING MULTICHANNEL LOOPS USING PARAMETER PERTURBATION-METHODS [J].

CLAUSSE, A ;

LAHEY, RT ;

PODOWSKI, M .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1989, 32 (11) :2055-2064

[7] DYNAMIC INSTABILITIES OF BOILING 2-PHASE FLOW IN A SINGLE HORIZONTAL CHANNEL [J].

DING, Y ;

KAKAC, S ;

CHEN, XJ .

EXPERIMENTAL THERMAL AND FLUID SCIENCE, 1995, 11 (04) :327-342

[8]

Dogan T., 1983, Int. J. Heat Fluid Flow, V4, P145, DOI DOI 10.1016/0142-727X(83)90060-7

[9] CLASSIFICATION OF 2-PHASE FLOW INSTABILITY BY DENSITY WAVE OSCILLATION MODEL [J].

FUKUDA, K ;

KOBORI, T .

JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, 1979, 16 (02) :95-108

[10] DENSITY-WAVE OSCILLATIONS IN PARALLEL CHANNELS - AN ANALYTICAL APPROACH [J].

GUIDO, G ;

CONVERTI, J ;

CLAUSSE, A .

NUCLEAR ENGINEERING AND DESIGN, 1991, 125 (02) :121-136

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