NDLI: Characteristics of low-temperature short heat pipes with a nozzle-shaped vapor channel

Content Provider	Springer Nature Link
Author	Seryakov, A. V.
Copyright Year	2016
Abstract	This paper presents the results of experimental and numerical studies of heat transfer and swirling pulsating flows in short low-temperature heat pipes whose vapor channels have the form of a conical nozzle. It has been found that as the evaporator of the heat pipe is heated, pressure pulsations occur in the vapor channel starting at a certain threshold value of the heat power, which is due to the start of boiling in the evaporator. The frequency of the pulsations has been measured, and their dependence on the superheat of the evaporator has been determined. It has been found that in heat pipes with a conical vapor channel, pulsations occur at lower evaporator superheats and the pulsation frequency is greater than in heat pipes of the same size with a standard cylindrical vapor channel. It has been shown that the curve of the heat-transfer coefficient versus thermal load on the evaporator has an inflection corresponding to the start of boiling in the capillary porous evaporator of the heat pipe.
Starting Page	69
Ending Page	81
Page Count	13
File Format	PDF
ISSN	00218944
Journal	Journal of Applied Mechanics and Technical Physics
Volume Number	57
Issue Number	1
e-ISSN	15738620
Language	English
Publisher	Pleiades Publishing
Publisher Date	2016-05-12
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	low-temperature heat pipes conical nozzle capacitive condensation sensor Mechanics Fluid- and Aerodynamics Classical Continuum Physics Applications of Mathematics Mathematical Modeling and Industrial Mathematics Mechanical Engineering
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Condensed Matter Physics Mechanical Engineering

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