Study of a radiative heat exchanger for the E-Test prototype
Dore, Antoine
Promotor(s) : Loicq, Jerôme
Date of defense : 24-Jun-2021/25-Jun-2021 • Permalink : http://hdl.handle.net/2268.2/11423
Details
Title : | Study of a radiative heat exchanger for the E-Test prototype |
Translated title : | [fr] Etude d'un système d'échange de chaleure radiatif pour le prototype E-Test. |
Author : | Dore, Antoine |
Date of defense : | 24-Jun-2021/25-Jun-2021 |
Advisor(s) : | Loicq, Jerôme |
Committee's member(s) : | Collette, Christophe
Jacques, Lionel |
Language : | English |
Number of pages : | 121 |
Keywords : | [en] Einstein Telescope, honeycomb radiator, cryogenic cooling, thermal design, molecular conduction, gravitational wave detector. |
Discipline(s) : | Engineering, computing & technology > Aerospace & aeronautics engineering |
Institution(s) : | Université de Liège, Liège, Belgique |
Degree: | Master en ingénieur civil en aérospatiale, à finalité spécialisée en "aerospace engineering" |
Faculty: | Master thesis of the Faculté des Sciences appliquées |
Abstract
[en] The Einstein Telescope is a highly accurate 3rd generation gravitational wave detector. Thanks
to its increased sensitivity, it will be able to observe much more often phenomena so far difficult to detect, such as the fusion of two black holes or will allow the understanding of the Big Bang.
However, the sensitivity of this telescope is such that it is subject to disturbances such as thermal
noise. To avoid this type of disturbance, the measuring instrument, the mirrors of the Einstein
telescope, must be brought to cryogenic temperatures. To meet this technological challenge, a three-dimensional thermal radiator consisting of nested cells could be the solution.
This master thesis will study the structure of this radiator by measuring its capacity to exchange
energy according to its geometry. In this perspective several quantities are measured such as the heat flux, the temperature variation within the structure and many others.
This work makes it possible to decide on the geometric shape of the radiator to be preferred to
optimize the heat exchange. It also incorporates the study of a complementary system using helium to accelerate the cooling.
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