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Development of thermal a acoustic insulations based on secondary raw sources from textil industry
Kosturová, Andrea ; Třísko, Pavel (referee) ; Zach, Jiří (advisor)
The objective of the presented diploma thesis is to evaluate the influence of modification on surface layer of products with their base structure from organical fibers and on the ability to resist increased humidity. Emphasis is puted on the description of humidity propagation in fiber materials ant he approximation of secondary waste from the textile industry as a potencional material for thermal insulation. The end of the theoretical part focuses on the types of possible surface treatment to prevent the ingress water into the structure of the material. The practical part verifies the selected type of modification of the surface layer of three materials choosen as test ensemble. After applying surface treatment, the effect of treatment on humidity sensitivity and water absorption was assessed. The determination of the thermal conductivity coefficient, the short-term absorption at partial immersion and the determination of the sorption humidity were made.
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Study of hygrotherma behavior of thermal insulating materials based on natural fibers
Kosturová, Andrea ; Peterková, Jitka (referee) ; Zach, Jiří (advisor)
The content of this work is to describe the transport of heat and moisture in thermal insulation materials based on natural fibers. The disadvantage in using these materials when incorporated into the construction is their low resistance to moisture. Therefore this work is further interested on possible modifications of natural fibers, which could correct it. Implemented literature research is approaching trends in the usage of dynamic simulations of heat and moisture transfer through material. Based on the findings from previous works on the VUT and theoretical part there were applied various kinds of impregnating preparations on a sample of insulation from hemp and the evaluation of their effect on the properties of the insulator.
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Development of thermal a acoustic insulations based on secondary raw sources from textil industry
Kosturová, Andrea ; Třísko, Pavel (referee) ; Zach, Jiří (advisor)
The objective of the presented diploma thesis is to evaluate the influence of modification on surface layer of products with their base structure from organical fibers and on the ability to resist increased humidity. Emphasis is puted on the description of humidity propagation in fiber materials ant he approximation of secondary waste from the textile industry as a potencional material for thermal insulation. The end of the theoretical part focuses on the types of possible surface treatment to prevent the ingress water into the structure of the material. The practical part verifies the selected type of modification of the surface layer of three materials choosen as test ensemble. After applying surface treatment, the effect of treatment on humidity sensitivity and water absorption was assessed. The determination of the thermal conductivity coefficient, the short-term absorption at partial immersion and the determination of the sorption humidity were made.
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Study of hygrotherma behavior of thermal insulating materials based on natural fibers
Kosturová, Andrea ; Peterková, Jitka (referee) ; Zach, Jiří (advisor)
The content of this work is to describe the transport of heat and moisture in thermal insulation materials based on natural fibers. The disadvantage in using these materials when incorporated into the construction is their low resistance to moisture. Therefore this work is further interested on possible modifications of natural fibers, which could correct it. Implemented literature research is approaching trends in the usage of dynamic simulations of heat and moisture transfer through material. Based on the findings from previous works on the VUT and theoretical part there were applied various kinds of impregnating preparations on a sample of insulation from hemp and the evaluation of their effect on the properties of the insulator.
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