HYPERVAPOTRON TECHNIQUE IN SUBCOOLED FLOW BOILING CHF

被引：41

作者：

CATTADORI, G

GASPARI, GP

CELATA, GP

CUMO, M

MARIANI, A

ZUMMO, G

机构：

[1] ENEA CASACCIA,ENE,IMPE,IPROT,VIA ANGUILLARESE 301,I-00060 ROME,ITALY

[2] UNIV ROMA LA SAPIENZA,I-00185 ROME,ITALY

[3] SIET,PIACENZA,ITALY

来源：

EXPERIMENTAL THERMAL AND FLUID SCIENCE | 1993年 / 7卷 / 03期

关键词：

CRITICAL HEAT FLUX; HEAT TRANSFER ENHANCEMENT; HYPERVAPOTRON; SUBCOOLED FLOW BOILING; FUSION REACTORS;

D O I：

10.1016/0894-1777(93)90006-5

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Fusion reactor thermal hydraulics requires suitable techniques for the removal of extremely high heat fluxes, of the order of some tens of megawatts per square meter. One possible technique, the hypervapotron, to enhance the critical heat flux (CHF) in subcooled flow boiling (already characterized by high values of CHF) was studied using water flowing in a horizontal annular test section designed for visualization. A full characterization of the hypervapotron effect as a function of geometry and fluid thermal hydraulic conditions was accomplished by making use of a high-speed videotape. The hypervapotron technique is suitable for the removal of high heat fluxes (up to about 30 MW/m2) wherever high values of fluid velocity and subcooling are not practical. In fact, it is typically employed at low values of liquid velocity and subcooling that in turn directly affect enhancement of the CHF in subcooled flow boiling.

引用

页码：230 / 240

页数：11

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