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Natural circulation in two-phase thermosyphon loop heated from below

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Języki publikacji
EN
Abstrakty
EN
Closed thermosyphon loops are devices capable of transporting heat through natural convection process. This paper focuses on the steady-state behaviour of two-phase natural circulation loops i.e. thermosyphon loops, in which the density difference of fluid between its liquid and vapour phases is a driving force. The steady-state, one-dimensional model is proposed for two-phase thermosyphon. The presented model based on mass, momentum, and energy balances in the evaporator, rising tube, condenser, and the falling tube. The slip two-phase flow model is used in circulations. The effect of the loop.s aspect ratio (height H to the breadth B) on the mass flow rate at the steady-state is examined numerically. Results show that the mass flow rate increases with increasing aspect ratio H/B. Freon R-11 was chosen as a working fluid in the thermosyphon device.
Twórcy
  • Institute of Fluid Flow Machinery, PAN, Gdańsk
Bibliografia
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Bibliografia
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bwmeta1.element.baztech-article-BGPK-0882-3542
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