Study for the design of a cryostat to test the performance and behaviour of a space optical instrument
Document typeBachelor thesis
Rights accessRestricted access - author's decision
When space agencies all over the world send their satellites and shuttles into space and put them in orbit, it is sometimes difficult for a person not related to this industry to realise the actual load of work and all the technology that had to be applied in order to make this happen. Many people, many hours, many strict calculations and recalculations, many of everything… All this just to achieve a goal that will probably last shorter than what it took to design it from sketch. For this reason, this project is intended to provide the reader with a starting overview of one tiny part of this gigantic process. More specifically, this document is about the designing process of a cryostat or thermal vacuum chamber, a very used device in space and medical applications whose main function is to achieve cryogenic temperatures within itself and hence test components in such conditions. This paper starts off with the meticulous definition of the basic specifications of the cryostat in question, followed by a short state-of-the-art section in which typical industries and applications are shown. Thereafter, a brief but strong introduction about thermal vacuum technology is included, which contains a detailed explanation of all the basic concepts and methods that are usually applied and that are of interest to this project. Then, it goes over the whole designing process with a generalist point of view, taking into account the structural, electrical, mechanical and thermal disciplines. Many illustrating images from a provisional design are attached for a better understanding, as well as FEM simulations are included to confirm and validate the hypotheses and calculations previously made. After that, the safety measures to be taken are clearly stated in order to prevent any risk, while the budget is properly summarized and commented to give the reader an idea of the real cost of this project. A detailed environmental assessment and the scheduling of the future steps are also included. Last but not least, this document ends with a comparative conclusion in which the accomplishment of all the basic requirements is verified according to what has been obtained along the designing process. In addition, some guidelines and recommendations are given for future actions. Finally, it is important to mention that this document takes as a reference the specific case the author dealt with in a research institute of Spain during the previous months to the project publication.
SubjectsCryostats, Vacuum technology, Outer space, Criòstats, Buit -- Aplicacions industrials, Espai exterior -- Aparells i instruments
DegreeGRAU EN ENGINYERIA EN TECNOLOGIES INDUSTRIALS (Pla 2010)
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