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Теплообмен при электрогидродинамической прокачке в испарительно-конденсационной системе

Теплообмен при электрогидродинамической прокачке в испарительно-конденсационной системе

Abstract

Приводятся гидродинамические и температурные закономерности тепломассопереноса в контуре испарительно-конденсационной системы, представляющей собой пульсационную тепловую трубу со встроенными нагревателем рабочей жидкости, одновременно служащим испарителем, конденсатором пара и электрогидродинамическим (ЭГД) насосом, предназначенным для принудительной прокачки теплоносителя. Раскрыто влияние на теплоотдачу электрического тока и напряжения на ЭГД насосе, подаваемой мощности нагрева, температурного напора и других факторов с целью выявления физических особенностей исследуемых процессов и создания теоретических предпосылок для их расчета. Электрическое поле не накладывается традиционно на всю систему, охватывающую зоны испарения и конденсации, а выводится за их пределы в виде отдельной компоненты системы – ЭГД насоса. Экспериментальные данные обработаны в виде «спрямленных» зависимостей, носящих обобщенный характер, между определяемыми и определяющими параметрами процесса. Результаты могут быть использованы для углубленных исследований, а также проектирования и создания охлаждающих и термостабилизирующих малогабаритных ЭГД устройств.

The article considers hydrodynamic and temperature dependencies of heat and mass transfer in an evaporative condensing system representing a pulsating heat pipe with a built-in heater, used as an evaporator, a vapor condenser and an electrohydrodynamic pump for forced pumping through a coolant. The influence of the electric current intensity and voltage on the electrohydrodynamic pump, applied power, temperature head and other factors on heat transfer has been investigated in order to reveal physical peculiarities of the processes under investigation and creation of a background for their calculation. An electric field is used only in the electrohydrodynamic pump which is situated outside of the evaporator and condenser. Experimental data are treated in the form of “rectified” dependencies, having a generalized character, between dependent and governing parameters of the process. The obtained results can be used for in-depth investigations as well as for the design and fabrication of cooling and compact thermo-stabilizing electrohydrodynamic devices.

Keywords

пульсационные тепловые трубы, электрогидродинамический насос и прокачка, электрическое поле, теплоотдача, двухфазная смесь, аппроксимация данных

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold