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Flexible structure development for efficient heat transfer
Černoch, Jakub ; Lazar, Václav (oponent) ; Mašek, Jakub (vedoucí práce)
The master’s thesis deals with theoretical calculations and design of a structure for heat transfer, which is part of a Miniaturized Heat Switch according to the specified requirements of the European Space Agency. The basic parameters are low weight and high thermal conductivity. The work follows the switch designed by Arescosmo, which did not meet the requirements, especially in the area of weight and thermal conductivity. Using theoretical calculations of weight and thermal conductivity, 49 variants were verified in 3 basic concepts – Mechanical contact structure, flexible structure composed of wires and foil structure. In terms of thermal conductivity, the best structures are those based on the use of metal stocking and sleeving braids. Manufacturing technologies have also been proposed from available sources that could be used to produce these structures. To meet the requirements, in the next phase of the project it will be necessary to produce experimental samples on which the theoretical calculations and selected technologies will be verified.
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Qualification test of heat switch for Martian conditions
Mašek, Jakub ; Horák, Marek (oponent) ; Popela, Robert (vedoucí práce)
Master thesis examines the description of the heat switch project in general and findings that have been attained so far. The thesis focuses on the development of test facility to perform the proposed heat switch test campaign in simulated Martian conditions. The first section foremost aim is to describe the evolution of the Heat switch test chamber intended for extreme condition simulations, i.e. low pressure and temperatures, from a preliminary design to the final test configuration. Thesis deals with reasons of the chamber configuration modifications and serves proposal solutions of unpredictable incidents to be further confirmed or disapproved. The aim of the second part of the thesis is to design the test campaign of the Miniaturized heat switch from initial test chamber validation experiments, via calibration tests to approve the drafted facility configuration performance, to the Bread Board verification tests and EQM final Qualification test. In addition the thesis focuses on measured data evaluation procedure and related effects. The calibration tests of the chamber configuration and data evaluation verification tests all performed with the Dummy specimens are almost finished. Once the results will be approved, the test chamber and test procedure schemes will be ready for BB and EQM testing.
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Flexible structure development for efficient heat transfer
Černoch, Jakub ; Lazar, Václav (oponent) ; Mašek, Jakub (vedoucí práce)
The master’s thesis deals with theoretical calculations and design of a structure for heat transfer, which is part of a Miniaturized Heat Switch according to the specified requirements of the European Space Agency. The basic parameters are low weight and high thermal conductivity. The work follows the switch designed by Arescosmo, which did not meet the requirements, especially in the area of weight and thermal conductivity. Using theoretical calculations of weight and thermal conductivity, 49 variants were verified in 3 basic concepts – Mechanical contact structure, flexible structure composed of wires and foil structure. In terms of thermal conductivity, the best structures are those based on the use of metal stocking and sleeving braids. Manufacturing technologies have also been proposed from available sources that could be used to produce these structures. To meet the requirements, in the next phase of the project it will be necessary to produce experimental samples on which the theoretical calculations and selected technologies will be verified.
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Qualification test of heat switch for Martian conditions
Mašek, Jakub ; Horák, Marek (oponent) ; Popela, Robert (vedoucí práce)
Master thesis examines the description of the heat switch project in general and findings that have been attained so far. The thesis focuses on the development of test facility to perform the proposed heat switch test campaign in simulated Martian conditions. The first section foremost aim is to describe the evolution of the Heat switch test chamber intended for extreme condition simulations, i.e. low pressure and temperatures, from a preliminary design to the final test configuration. Thesis deals with reasons of the chamber configuration modifications and serves proposal solutions of unpredictable incidents to be further confirmed or disapproved. The aim of the second part of the thesis is to design the test campaign of the Miniaturized heat switch from initial test chamber validation experiments, via calibration tests to approve the drafted facility configuration performance, to the Bread Board verification tests and EQM final Qualification test. In addition the thesis focuses on measured data evaluation procedure and related effects. The calibration tests of the chamber configuration and data evaluation verification tests all performed with the Dummy specimens are almost finished. Once the results will be approved, the test chamber and test procedure schemes will be ready for BB and EQM testing.
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