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Theoretical and bibliographic synthesis on micro-heat pipes; Synthese theorique et bibliographique sur les microcaloducs

Abstract

The technology, dimensioning and performances of heat pipes are well known since several years. Micro-heat pipes occurred more recently with the miniaturization of systems to be cooled and the increase of surface heat fluxes to be dissipated. Publications concerning this topic are not much older than the 90`s. Using these papers, a bibliographic synthesis on micro-heat pipe performances, functioning and dimensioning is presented. Experimental studies demonstrate the efficiency of such systems but also their high sensitivity with respect to the capillary limit which leads to a progressive drying of the evaporator and a reduction of its thermal conductance. Theoretical studies are based on the same equations than heat pipes. More or less complex models have been proposed in the literature and a relatively simple model is presented in this paper. These studies have permitted to show the great influence of some parameters on micro-heat pipes functioning like: the pipe geometry, the fluid-wall contact angle, the level of pipes filling, and the bonding zone of the liquid film on the wall. (J.S.) 15 refs.
Authors:
Sartre, V; Lallemand, M [1] 
  1. Institut National des Sciences Appliquees (INSA), 69 - Villeurbanne (France)
Publication Date:
Dec 31, 1996
Product Type:
Conference
Report Number:
ETDE-FR-99703327; CONF-9605344-
Reference Number:
SCA: 420400; PA: FRC-98:004843; EDB-99:046664; SN: 98002014939
Resource Relation:
Conference: Workshop on heat pipes and two-phase loops with capillary pumping, Journee d`etudes sur caloducs et boucles diphasiques a pompage capillaire, France (France), 3 May 1996; Other Information: PBD: 1996; Related Information: Is Part Of Heat pipes and two-phase loops with capillary pumping; PB: 176 p.; Caloducs et boucles diphasiques a pompage capillaire
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; HEAT PIPES; HEAT TRANSFER; COEFFICIENT OF PERFORMANCE; THERMAL EFFICIENCY; EVAPORATORS; HEAT FLUX; CAPILLARY FLOW; TWO-PHASE FLOW; KNUDSEN FLOW; VAPOR CONDENSERS; MINIATURIZATION; DRYING; CONFIGURATION; INTERFACES
OSTI ID:
333955
Research Organizations:
Societe Francaise des Thermiciens, 75 - Paris (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
Other: ON: DE99703327; TRN: FR9804843
Availability:
OSTI as DE99703327
Submitting Site:
FR
Size:
pp. 45-60
Announcement Date:

Citation Formats

Sartre, V, and Lallemand, M. Theoretical and bibliographic synthesis on micro-heat pipes; Synthese theorique et bibliographique sur les microcaloducs. France: N. p., 1996. Web.
Sartre, V, & Lallemand, M. Theoretical and bibliographic synthesis on micro-heat pipes; Synthese theorique et bibliographique sur les microcaloducs. France.
Sartre, V, and Lallemand, M. 1996. "Theoretical and bibliographic synthesis on micro-heat pipes; Synthese theorique et bibliographique sur les microcaloducs." France.
@misc{etde_333955,
title = {Theoretical and bibliographic synthesis on micro-heat pipes; Synthese theorique et bibliographique sur les microcaloducs}
author = {Sartre, V, and Lallemand, M}
abstractNote = {The technology, dimensioning and performances of heat pipes are well known since several years. Micro-heat pipes occurred more recently with the miniaturization of systems to be cooled and the increase of surface heat fluxes to be dissipated. Publications concerning this topic are not much older than the 90`s. Using these papers, a bibliographic synthesis on micro-heat pipe performances, functioning and dimensioning is presented. Experimental studies demonstrate the efficiency of such systems but also their high sensitivity with respect to the capillary limit which leads to a progressive drying of the evaporator and a reduction of its thermal conductance. Theoretical studies are based on the same equations than heat pipes. More or less complex models have been proposed in the literature and a relatively simple model is presented in this paper. These studies have permitted to show the great influence of some parameters on micro-heat pipes functioning like: the pipe geometry, the fluid-wall contact angle, the level of pipes filling, and the bonding zone of the liquid film on the wall. (J.S.) 15 refs.}
place = {France}
year = {1996}
month = {Dec}
}