Results 171 to 180 of about 572,948 (211)

Type of condensers and their cooling effect in the loop thermosyphon

AIP Conference Proceedings, 2014
This work investigates the cooling effect of three condensers in the loop thermosyphon in horizontal position. The cooling liquid flows in 1-tube condenser circuit. The work compares cooling effect of different types of condensers (flat condenser and ribbed tube condenser) at different thermal load. Cooling effect of condenser is connected with thermal
Peter Hrabovský, Patrik Nemec, Milan Malcho   +2 more
openaire   +1 more source

A Loop Thermosyphon With Hydrophobic Spots Evaporator Surface

ASME 2018 16th International Conference on Nanochannels, Microchannels, and Minichannels, 2018
Heat transfer characteristic of a closed two-phase thermosyphon with enhanced boiling surface is studied and compared with that of a copper mirror surface. Two-phase cooling improves heat transfer coefficient (HTC) a lot compared to single-phase liquid cooling.
Hongbin He, Biao Shen, Sumitomo Hidaka, Koji Takahashi, Yasuyuki Takata   +4 more
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In-flight testing of loop thermosyphons for aircraft cooling

Applied Thermal Engineering, 2016
Abstract A novel design for a heat exchanger was experimentally evaluated in an Embraer test aircraft on the ground and in-flight conditions. The prototype was qualified for flight after constrained acceptance tests. The design consisted of two condensers, linked to one shared evaporator by two parallel loop thermosyphons.
J.L.G. Oliveira, C. Tecchio, K.V. Paiva, M.B.H. Mantelli, R. Gandolfi, L.G.S. Ribeiro   +5 more
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Conjugate heat transfer in an open loop thermosyphon

International Communications in Heat and Mass Transfer, 1994
Abstract This study considers the transient physical phenomena in an open loop thermosyphon, where the wall heat conduction is coupled to the fluid hydrodynamics and heat transfer. Some simplifying assumptions allow a semi-analytical solution in several cases of practical importance.
I. Arshavski, Y. Nekhamkin, S. Olek, E. Elias   +3 more
openaire   +1 more source

Thermoelectric Power Generation System with Loop Thermosyphon

Transactions of the Korean Society of Mechanical Engineers B, 2009
A new progressive advanced approach (Loop thermosyphon Thermoelectric Power generation System) is suggested to optimize heat recovery ability from vehicle exhaust gas. As an initial look at device feasibility, the present new TE system adopted the loop thermosyphon as a cooling heat exchanger.
Sun-Kook Kim, Seok-Ho Rhi, Byung-Chul Won, Dae-Hyun Kim, Chung-Gu Lee   +4 more
openaire   +1 more source

Analyzing the Performance of a Flat-Loop Evaporator Thermosyphon

ISCORD 2013, 2013
Flat-loop evaporator thermosyphons are commonly used to provide subgrade cooling beneath at-grade structures founded on thaw unstable permafrost. There are few published articles on how the flat-loop evaporator thermosyphons perform in service. In order to provide in-service performance data, a standard commercial unit was instrumented and installed ...
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Multi-Evaporator Closed Loop Thermosyphon

2015
A novel type of multi-evaporator Closed-Loop Two-Phase Thermosyphon has been designed and tested at different inclinations and heat input levels. The device consists in an aluminum tube (I.D./O.D. 3/5 mm), bended into a planar serpentine with five U-turns in the heated zone, with a 50 mm transparent section for the purpose of visualization. The tube is
Mameli, M., Mangini, D., Vanoli, G. F., Araneo, L., FILIPPESCHI, SAURO, Marengo, M.   +5 more
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The onset of flows and instabilities in a thermosyphon with parallel loops

Nuclear Engineering and Design, 1986
A theoretical study is presented for the stability of various steady flows in a thermosyphon with multiple vertical channels. The main interest is in the onset of motion from a rest state or in a stagnant branch, therefore laminar flow is considered and a one-dimensional model is used to describe the flow and temperature fields.
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POLYMER FLAT LOOP THERMOSYPHONS

Heat Pipe Science and Technology, An International Journal, 2014
Leonid P. Grakovich, Mikhail I. Rabetskii, Leonard L. Vasiliev, Leonid L. Vasiliev, Jr., S. P. Bogdanovich, S. S. Pesetskii   +5 more
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A note on the loop thermosyphon with mixed boundary conditions

International Journal of Heat and Mass Transfer, 1985
This paper presents a one-dimensional model for flow in a toroidal fluid loop in which the wall heat transfer coefficient is constant over one half of the loop, and zero over the other. A mathematically low- dimensional form of the model gives reasonably accurate predictions of the steady state mass flow, stability, and the nature of non-steady motions.
openaire   +1 more source