probenerИзвестия высших учебных заведений. ПРОБЛЕМЫ ЭНЕРГЕТИКИPower engineering: research, equipment, technology1998-99032658-5456Kazan State Power Engineering University10.30724/1998-9903-2018-20-3-4-136-144probener-575Research ArticleФИЗИКАPHYSICSЭКСПЕРИМЕНТАЛЬНОЕ ОПРЕДЕЛЕНИЕ ТЕМПЕРАТУР В ХАРАКТЕРНЫХ СЕЧЕНИЯХ РАБОЧЕЙ ЗОНЫ ЗАМКНУТОГО ДВУХФАЗНОГО ТЕРМОСИФОНАEXPERIMENTAL DETERMINATION OF TEMPERATURES IN CHARACTERISTIC SECTIONS OF THE WORKING ZONE OF A CLOSED TWO-PHASE THERMOSYPHONКузнецовГ. В.KuznetsovG. V.

д-р физ.-мат. наук, профессор, заведующий кафедрой «Теоретическая и промышленная теплотехника» Томского политехнического университета

Tomsk polytechnic university, Doctor of Physical - Mathematical Sciences, Head of Department of thermal theory and engineering

marisha@tpu.ruНурпейисА. Е.NurpeiisA. E.

ассистент кафедры «Теоретическая и промышленная теплотехника» Томского политехнического университета

Tomsk Polytechnic University, Department of thermal theory and engineering, assistant

nurpeiis_atlant@mail.ruНациональный исследовательский Томский политехнический университетРоссияTomsk Polytechnic UniversityRussian Federation201825052018203-4136144Copyright © Кузнецов Г.В., Нурпейис А.Е., 20182018Кузнецов Г.В., Нурпейис А.Е.Kuznetsov G.V., Nurpeiis A.E.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.energyret.ru/jour/article/view/575

Представлены результаты экспериментального определения распределений температур в характерных сечениях рабочей зоны замкнутого двухфазного термосифона. Исследования процессов теплопереноса проводились в термосифоне, изготовленном из меди с постоянной площадью поперечного сечения. Высота теплообменника 161 мм, толщина боковых стенок 1,5 мм, нижней стенки 2мм, внутренний диаметр испарительной части и парового канала 39 мм. По результатам экспериментальных исследований установлена зависимость изменения характерных температур от величины теплового потока, подводимого к нижней крышке термосифона, и коэффициента заполнения. Установлено, что увеличение теплового потока на нижней крышке термосифона приводит к снижению перепада температур по паровому каналу и сокращению времени выхода на стационарный режим работы. Эксперименты показали, что даже при высоких тепловых нагрузках (до 11,2 кВт/м2) перепады температур по высоте термосифона не превышают 9 К.

In article, presents the results of experimental determination of temperature distributions in characteristic sections of the working zone of a closed two-phase thermosyphon. A thermosyphon made of copper with a constant cross-sectional area is used to study heat transfer. The height of the heat exchanger is 161 mm, the thickness of the side walls is 1.5 mm, the bottom wall is 2 mm, the internal diameter of the evaporative part and the vapor channel is 39 mm. Experimental results give dependences of the change in the characteristic temperatures on the heat flux supplied to the bottom cover of the thermosyphon and the filling ratio. An increase in the heat flow at the bottom cover of the thermosyphon leads to a decrease in the temperature drop along the vapor channel and a reduction in the time to reach the stationary mode of operation. Experiments show that even at high thermal loads (up to 11,2  kW/m2) the temperature drops over the height of the thermosyphon do not exceed 9 K.

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The authors declare that there are no conflicts of interest present.