What is Going on in a Critical Thermosyphon?

作     者：E. Hahne, U. Gross , G. BarthauInstitut für Thermodynamik und Warmetechnik, Universitat Stuttgart, Pfaffenwaldring 6, D 70550 Stuttgart, Germany, E mail: pm@itw.uni stuttgart.de TU Bergakademie Freiberg, Institut für Technische Th 

作者机构：Institut für Thcrmodynamik und Wärmetechnik Universität Stuttgart Pfaffenwaldring 6 D-70550 Stuttgart Germany TU Bergakademie Freiberg Insfitut für Technische Thermedynamik G.-Zeuner-Str. 7 D-09596 Freiberg Germany 

出 版 物：《Tsinghua Science and Technology》 (清华大学学报（自然科学版（英文版）)

年 卷 期：2002年第7卷第2期

页      面：109-115页

学科分类：080701[工学-工程热物理] 08[工学] 0807[工学-动力工程及工程热物理] 

主　　题：critical state thermosyphon heat pipe opalesence 

摘      要：Critically filled thermosyphons for heat transport differ in size and temperature distribution from critically filled testcells for property research. Consequently, the thermodynamic states within a thermosyphon are distributed more heterogeneously. In a glass thermosyphon, flows and phase distributions were observed. A break down of the heat transport mechanism was found as a consequence of flooding the cooling region with liquid. Observed and explained-by use of a density/pressure diagram-were the effects of heating, of pressure and of fluid quantity on the distribution of the phases, the appearance of pulsations and the propagation of a heat pulse near the critical state. 