A control procedure for the elimination of mal flow rate distribution in evaporating flow in parallel pipes

被引：19

作者：

Taitel, Yehuda ^{[1
]}

Minzer, Uri ^{[1
]}

Barnea, Dvora ^{[1
]}

机构：

[1] Tel Aviv Univ, Sch Engn, IL-69978 Ramat Aviv, Israel

来源：

SOLAR ENERGY | 2008年 / 82卷 / 04期

关键词：

two-phase flow; evaporation; parallel pipes; direct steam generation;

D O I：

10.1016/j.solener.2007.09.005

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Solar power plants that are based on an array of parallel parabolic trough solar collectors currently use oil as the heated fluid. Direct steam generation (DSG) has the potential of being a more efficient and less costly process owing to the elimination of oil as an indirect secondary heating medium and the elimination of heat exchanges and extra equipment needed for the transfer of heat from oil to water/steam. Unfortunately the use of DSG may possess problems regarding undesired flow distribution among the parallel pipes as well as possible flow instabilities. In this work we propose a control procedure that can adjust the flow rate in each of the parallel pipes to a desired quality at the pipes exit. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：329 / 335

页数：7

共 21 条

[1]

Akagawa K., 1971, Bull. JSME, V14, P837

[2] Electricity production at low powers by direct steam generation with parabolic troughs [J].

Almanza, R ;

Lentz, A .

SOLAR ENERGY, 1998, 64 (1-3) :115-120

[3] DSG under two-phase and stratified flow in a steel receiver of a parabolic trough collector [J].

Almanza, R ;

Jiménez, G ;

Lentz, A ;

Valdés, A ;

Soria, A .

JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME, 2002, 124 (02) :140-144

[4]

Collier J.G., 1996, CONVECTIVE BOILING C, V3rd

[5] STATIC FLOW INSTABILITY ONSET IN TUBES, CHANNELS, ANNULI, AND ROD BUNDLES [J].

DUFFEY, RB ;

HUGHES, ED .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1991, 34 (10) :2483-2496

[6] Applied research concerning the direct steam generation in parabolic troughs [J].

Eck, M ;

Zarza, E ;

Eickhoff, M ;

Rheinländer, J ;

Valenzuela, L .

SOLAR ENERGY, 2003, 74 (04) :341-351

[7] Direct steam generation in parabolic troughs: First results of the DISS project [J].

Eck, M ;

Steinmann, WD .

JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME, 2002, 124 (02) :134-139

[8] Dynamics and control of parabolic trough collector loops with direct steam generation [J].

Eck, Markus ;

Hirsch, Tobias .

SOLAR ENERGY, 2007, 81 (02) :268-279

[9]

HIRSCH T, 2006, 13 INT S CONC SOL PO

[10] Direct steam generation in parabolic trough solar power plants: Numerical investigation of the transients and the control of a once-through system [J].

Lippke, F .

JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME, 1996, 118 (01) :9-14

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