High Temperature

, Volume 56, Issue 1, pp 92–97 | Cite as

Development and Investigation of a Two-Phase Loop Thermosiphon with a Flat Evaporator at Different Slope Angles

Heat and Mass Transfer and Physical Gasdynamics


We present the results of the development and experimental studies of a two-phase loop thermosiphon with a flat evaporator and ethanol as the working fluid. We investigate the thermal characteristics of the device within the temperature range of 20–80°C under the heat loads of 10–120 W, a filling ratio of 40%, and slope angles within the range of 0°–90°. The device is functional at all of the studied slope angles. The maximum heat load of 120 W was reached at the slope angle of 90°. Here, the average temperature of the evaporator surface was within 70°C and the maximum thermal resistance was equal to 0.41°C/W.


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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  1. 1.Institute of Thermal Physics, Ural BranchRussian Academy of SciencesEkaterinburgRussia

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