Experimental study of heat transfer through liquid metal under strong centrifugal acceleration
Creators
- 1. Office National d'Etudes et de Recherches Aerospatiales (ONERA), 92 - Chatillon (France)
Description
An experimental study concerning heat transfers by convective cycle (thermosyphon) or evaporative cycle (phase change) of a liquid metal subjected to a high centrifugal acceleration, has been carried out with a system incorporating a high speed rotor. The maximal acceleration is 1.2 105ms-2 at the average radius (0.165m). The heat-carrier fluid circulates radially inside two identical test tubes diametrically opposed, in sealed cylindrical channels drilled from one to the other of each of their ends. The heat source is supplied at the periphery by radiation of the graphite areas; the flow is transmitted by the heat carrier fluid to the other and where air-cooled finned heat-exchanges are fitted. The maximum density of the dissipated flows reaches 6.6 105W m-2
Abstract (French)
Une etude experimentale concernant les transferts thermiques par cycle convectif (thermosiphon) ou evaporatif (changement de phase) d'un metal liquide soumis a une forte acceleration centrifuge a ete effectuee avec un montage comprenant un rotor a grande vitesse. L'acceleration maximale est de 1,2.105 ms-2 au rayon moyen (0,165m). Le caloporteur circule radialement a l'interieur de deux eprouvettes identiques et diametralement opposees, dans des canaux cylindriques etanches fores de l'une a l'autre des extremites de chacune d'elles. La source de chaleur est fournie a la peripherie par rayonnement de surfaces de graphite, le flux est transmis par le caloporteur a l'autre extremite ou sont situes les echangeurs a ailettes refroidies par air. La densite maximale des flux evacues atteint 6,6.105 W m-2Additional details
Additional titles
- Original title (French)
- Etude experimentale du transfert thermique par metal liquide sous forte acceleration centrifuge
Publishing Information
- Journal Title
- Rev. Gen. Therm.
- Journal Volume
- 14
- Journal Issue
- 159
- Series
- Rev. Gen. Therm.
- Journal Page Range
- 195-204
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 6204927
- Subject category
- S42: ENGINEERING;
- Descriptors DEI
- ACCELERATION; CONVECTION; EVAPORATION; HEAT TRANSFER; LIQUID METALS; ROTORS; TURBINE BLADES
- Descriptors DEC
- ELEMENTS; ENERGY TRANSFER; FLUIDS; LIQUIDS; METALS; PHASE TRANSFORMATIONS