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The influence of different types of ventilation outlets on the heat transfer by convection from the human body
Zábovský, Ján ; Pokorný, Jan (oponent) ; Fišer, Jan (vedoucí práce)
The aim of this diploma thesis is to investigate the influence of different types of HVAC system outlets on convective heat transfer from a human body. The first part of the thesis consists of an overview of essentials important for understanding the issue, specifically, metabolism, thermoregulation, heat transfer mechanisms, thermal vote and fluid dynamics. The second part defines the main working hypothesis and describes the used experimental approach leading either to confirmation or disproval of the hypothesis. The chosen approach is based on a measurement with thermal mannequin “Newton” using two different configurations: constant surface temperature and constant generated heat flux. In case of the first configuration, the convection intensity indicator was the value of heat flux generated from each of surface segments of the thermal mannequin. Their surface temperature was the indicator when running the experiment using the second configuration. The value was evaluated by the thermal mannequin as well as the thermal camera Flir i7 which provided more detailed division of the surface. The final part of the thesis describes the progress of the experiment itself, represents gathered values involving analysis of contaminants and confirms or disproves the original thesis.
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Calibration task of experimental device for space technology testing
Lazar, Václav ; Horák, Marek (oponent) ; Mašek, Jakub (vedoucí práce)
The Master thesis deals with an experimental test facility calibration procedure. The thesis focuses on a complex mathematical thermal model proposal, which describes the inner facility thermal processes during the specimen conductance measurements. The first section introduces the test facility, its limits, and the measurement principle. The necessary third version facility upgrades made to secure the prescribed test conditions are covered. The calibration need and reasons also resonate through the first section. The second part aims at the calibration specimens and the Thermal Model designs proposals. The specimens requirements and their final properties are brought forward. The determined heat losses calculations are completed with the defined refining procedure suggestion. The calibration specimens measurements were performed with a new test facility version three. The measured results will serve as calibration inputs for the Thermal Model tuning, necessary for the calibration task completion. The functional model will enable to proceed with the next phase of the test facility experiments.
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The influence of different types of ventilation outlets on the heat transfer by convection from the human body
Zábovský, Ján ; Pokorný, Jan (oponent) ; Fišer, Jan (vedoucí práce)
The aim of this diploma thesis is to investigate the influence of different types of HVAC system outlets on convective heat transfer from a human body. The first part of the thesis consists of an overview of essentials important for understanding the issue, specifically, metabolism, thermoregulation, heat transfer mechanisms, thermal vote and fluid dynamics. The second part defines the main working hypothesis and describes the used experimental approach leading either to confirmation or disproval of the hypothesis. The chosen approach is based on a measurement with thermal mannequin “Newton” using two different configurations: constant surface temperature and constant generated heat flux. In case of the first configuration, the convection intensity indicator was the value of heat flux generated from each of surface segments of the thermal mannequin. Their surface temperature was the indicator when running the experiment using the second configuration. The value was evaluated by the thermal mannequin as well as the thermal camera Flir i7 which provided more detailed division of the surface. The final part of the thesis describes the progress of the experiment itself, represents gathered values involving analysis of contaminants and confirms or disproves the original thesis.
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Calibration task of experimental device for space technology testing
Lazar, Václav ; Horák, Marek (oponent) ; Mašek, Jakub (vedoucí práce)
The Master thesis deals with an experimental test facility calibration procedure. The thesis focuses on a complex mathematical thermal model proposal, which describes the inner facility thermal processes during the specimen conductance measurements. The first section introduces the test facility, its limits, and the measurement principle. The necessary third version facility upgrades made to secure the prescribed test conditions are covered. The calibration need and reasons also resonate through the first section. The second part aims at the calibration specimens and the Thermal Model designs proposals. The specimens requirements and their final properties are brought forward. The determined heat losses calculations are completed with the defined refining procedure suggestion. The calibration specimens measurements were performed with a new test facility version three. The measured results will serve as calibration inputs for the Thermal Model tuning, necessary for the calibration task completion. The functional model will enable to proceed with the next phase of the test facility experiments.
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