NATURAL CIRCULATION IN PARALLEL VERTICAL CHANNELS WITH DIFFERENT HEAT INPUTS

被引：15

作者：

TAKEDA, T

KAWAMURA, H

SEKI, M

机构：

[1] JAERI, Tokai-mura, Jpn, JAERI, Tokai-mura, Jpn

来源：

NUCLEAR ENGINEERING AND DESIGN | 1987年 / 104卷 / 02期

关键词：

FLOW OF FLUIDS - Channel Flow - HEAT TRANSFER - Mathematical Models;

D O I：

10.1016/0029-5493(87)90294-9

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

When forced circulation of the coolant is lost in a gas cooled reactor, natural circulation takes place in the reactor core. Natural circulation in the many parallel vertical channels with different heat inputs is quite complicated because the flow rate and direction depend on the time history of the heat input of each channel. Since only a few previous studies were concerned with this problem, an experimental and analytical study was performed to investigate the natural circulation in an array of parallel channels with different heat inputs. The experimental apparatus consisted of four vertical channels filled with water. Each channel was furnished with a heater pin and heated by various combinations of time-varying heat inputs. Flow velocity of the water was measured, and an abrupt change of the flow direction was observed. An analytical code predicted well the experimental results.

引用

页码：133 / 143

页数：11

共 9 条

[1] ON THE EFFECTS OF VISCOUS DISSIPATION AND PRESSURE WORK IN FREE-CONVECTION LOOPS [J].

BAU, HH ;

TORRANCE, KE .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1983, 26 (05) :727-734

[2] ON THE STABILITY AND FLOW REVERSAL OF AN ASYMMETRICALLY HEATED OPEN CONVECTION LOOP [J].

BAU, HH ;

TORRANCE, KE .

JOURNAL OF FLUID MECHANICS, 1981, 109 (AUG) :417-433

[3] TRANSIENT AND STEADY BEHAVIOR OF AN OPEN, SYMMETRICALLY-HEATED, FREE-CONVECTION LOOP [J].

BAU, HH ;

TORRANCE, KE .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1981, 24 (04) :597-609

[4]

Chato J.C., 1963, J HEAT TRANS-T ASME, V85, P339, DOI DOI 10.1115/1.3686122

[5] STABLE NUMERICAL INTEGRATION OF CONSERVATION EQUATIONS FOR HYDRAULIC NETWORKS [J].

PORSCHING, TA ;

MURPHY, JH ;

REDFIELD, JA .

NUCLEAR SCIENCE AND ENGINEERING, 1971, 43 (02) :218-+

[6]

Shah R.K., 1978, ADV HEAT TRANSFER LA, P284

[7] ON THE STABILITY AND FLOW REVERSAL OF PRESSURE-DRIVEN FLOW IN AN ASYMMETRICALLY HEATED U-SHAPED TUBE [J].

ZHOU, KY ;

BAU, HH .

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 1985, 107 (01) :112-117

[8] EXPERIMENTAL AND ANALYTICAL INVESTIGATION OF A NATURAL CIRCULATION SYSTEM WITH PARALLEL LOOPS [J].

ZVIRIN, Y ;

JEUCK, PR ;

SULLIVAN, CW ;

DUFFEY, RB .

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 1981, 103 (04) :645-652

[9] TRANSIENT-BEHAVIOR OF NATURAL CIRCULATION LOOPS - 2 VERTICAL BRANCHES WITH POINT HEAT-SOURCE AND SINK [J].

ZVIRIN, Y ;

GREIF, R .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1979, 22 (04) :499-504

← 1 →