CEA
CNRS
Univ. Paris-Saclay

Service de Physique de l'Etat Condensé


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Self-sustained meniscus oscillation in a capillary caused by evaporation/condensation: pulsating heat pipe

Contact: Gilbert Zalczer, , gilbert.zalczer@cea.fr, +33 1 69 08 31 64
Summary:
This experimental internship is for students seeking to work on a border between fundamental science and industrial engineering applications. The trainee will work with the pulsating heat pipe prototype and process the thermal data and optical images.
Possibility of continuation in PhD: Non
Deadline for application:30/04/2020

Full description:
This experimental internship is for students seeking to work on a border between fundamental science and industrial engineering applications.
Many processes produce large and localized heat releases and are limited by the ability to evacuate this heat. Heat pipes, devices used to manage these heat flows operate without additional energy and have no moving parts. They are now present in all devices, from mobile phones to airplane engines. One representative of the heat pipe family, the pulsating (or oscillating) heat pipe, is a very efficient device for transferring large heat fluxes. The nonstationary (chaotic) dynamics of its operation must be better mastered for its industrial application. Recently an experimental setup from CEA Grenoble has been transferred to SPEC. We are now reassembling it. This experiment is done in close interaction with the theoretical approaches and numerical simulation conducted within our team.
This experimental work has many aspects: thermal, vacuum, electronics, data acquisition, computer science, imaging and image analysis, etc.
The trainee will address the following topics
• Management of an experimental project: implementation of the oscillating heat pipe with transparent parts, digital data acquisition, optical observation
• Management of fluid circuits
• Flow of two-phase fluids with heat transfer
• Non-linear dynamics of a chaotic system
The trainee will be based in the CEA-Saclay center, at the Laboratory of Condensed Matter Physics (SPEC) in the Group of physical systems out of equilibrium, hydrodynamics, energy, and complexity (SPHYNX).
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