| 19 | What is Going on in a Critical Thermosyphon?显示文摘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. | E. Hahne, U. Gross , G. BarthauInstitut für Thermodynamik und Warmetechnik, Universitat Stuttgart, Pfaffenwaldring 6, D 70550 Stuttgart, Germany, E mail: pm@itw.uni stuttgart.de TU Bergakademie Freiberg, Institut für Technische Th | 2002 | Tsinghua Science and Technology2002，7，2： | 1 |
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