Results 191 to 200 of about 1,138 (230)
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Visualization of Oscillating Heat Pipes
2015As described in previous chapters, fluid flow and heat transfer in an oscillating heat pipe is very complex. To better understand thermally excited oscillating flow, a number of visualization methods have been used to study fluid flow of liquid plugs and vapor bubbles in OHPs.
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2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia), 2018
Oscillating heat pipe addition to the heat sink was considered for the cooling performance improvement of heat sink. Hydrofluoroolefins (HFO) was chosen as the refrigerant to be encapsulated into the heat pipe, as it is nonflammable and has low global warming potential (GWP) index. HFO is proven to have the equal performance as the existing refrigerant
Kuan-Chung Tey, Kenichiro Suzuki
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Oscillating heat pipe addition to the heat sink was considered for the cooling performance improvement of heat sink. Hydrofluoroolefins (HFO) was chosen as the refrigerant to be encapsulated into the heat pipe, as it is nonflammable and has low global warming potential (GWP) index. HFO is proven to have the equal performance as the existing refrigerant
Kuan-Chung Tey, Kenichiro Suzuki
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Operation limitation of an oscillating heat pipe
International Journal of Heat and Mass Transfer, 2016Abstract The oscillating heat pipe (OHP) has been widely studied as a promising heat transfer device, which can efficiently transport heat by thermally exciting oscillating motions. In the current investigation, the operating limitation of an OHP is theoretically studied to determine its maximum heat transport capability.
D. Yin, H. Wang, H.B. Ma, Y.L. Ji
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Oscillating Motion and Heat Transfer Mechanisms of Oscillating Heat Pipes
2015An oscillating heat pipe (OHP) consists of interconnected capillary channels or tubes filled with a train of liquid plugs and vapor bubbles. An OHP typically has three sections: evaporator, adiabatic section, and condenser. When heat is added onto the evaporator section, liquid becomes vapor resulting in an increase of both vapor volume and pressure ...
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Oscillating Characteristics of Slug Flow in Oscillating Heat Pipes
9th AIAA/ASME Joint Thermophysics and Heat Transfer Conference, 2006Self-sustainable oscillating motions of the slug flow in oscillating heat pipes have been investigated in the paper. A mass -spring model in the adiabatic section of the heat pipe under the exciting sources in its evaporator and condenser is applied to describe the oscillating characteristics of the two-phase flow in the serpentine capillary channels ...
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Heat Transfer in Oscillating Circular Pipes
Experimental Heat Transfer, 2007An experimental investigation was made to study heat transfer in a pipe which is oscillated about an axis that is parallel to, but offset from, the pipe axis. Air was used as working fluid. The experimental setup was designed so as to provide oscillating motion of a test pipe. The measurement systems were installed on the oscillating section.
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Numerical Simulation of Oscillating Heat Pipe Heat Exchanger
International Journal of Food Engineering, 2010Oscillating heat pipe is a new type high efficiency heat-transfer element. Its development and design attract increasing attention. This paper describes a numerical simulation for investigating on the flow and heat exchange performance of an oscillating heat pipe heat exchanger.
Benyin Chai +4 more
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An Experimental Investigation of an Oscillating Heat Pipe Heat Spreader
Journal of Thermal Science and Engineering Applications, 2015With ever increasing technological advances in electronics, modern computer components continue to produce higher power densities that present a challenge to thermal management. A radial flat-plate oscillating heat pipe (RFP-OHP) heat spreader is investigated to study the effect of central heating on the heat transport capability in an OHP.
F. F. Laun, H. Lu, H. B. Ma
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An analytical model of oscillating heat pipe performance
Thermal Science and Engineering Progress, 2023Max Pawlick, G.P. Peterson
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Experimental investigation of oscillating heat pipes
2018"December 2013." ; "A Thesis presented to the Faculty of the Graduate School University of Missouri--Columbia In Partial Fulfillment of the Requirements for the Degree Master of Science." ; Thesis supervisor: Dr. Hongbin Ma. ; [ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] With ever increasing technological advances in ...
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