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Compost heating system for the hot water preparation
Dokoupilová, Bára ; Baxant, Petr (referee) ; Bajko, Jaroslav (advisor)
Using energy that is generated during decomposition processes in organic matter, is the fundamental theme of this thesis. While the following research succeeds to present the possibility of heat recovery using a compost heater, it also introduces composting in the context of ecology and global warming. The work analyses biochemical processes taking place in the decomposition of biomass, and explains the thermomechanical principles of heat transfer in the compost heater. The aim of the practical section of this work is to evaluate the measured data and verify the functionality of the compost heater assembled in the pilot experiment. The results confirm the compost heater is able to deliver the required power. However, its lifetime is closely dependent on the conditions of the compost environment. A key factor is not only a suitably chosen mixture for composting but also its thermal insulation. In the final section, examples of specific case studies based on the use of biomass for energy purposes, are presented.
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Design of heat transfer and recovery systems for Thermocompost
Dokoupilová, Bára ; Jícha, Miroslav (referee) ; Fišer, Jan (advisor)
The following master’s thesis examines the use of biothermal energy released during the decomposition process of composting. The aim of this thesis is to explain the heat generation principles of composting, to summarize its consumption possibilities, and to design a suitable use of the source for the demands of a real building. First, the theoretical framework compares various options of the biomass utilization. It then describes the biochemical course of organic matter decomposition, and conceptualizes the term thermocompost as well as different methods of heat extraction. Subsequently, it lists ways of applying this technology in practice. Second, the empirical part uses the findings to propose a compost pile installation, and its connection to the current heating and hot water system in Ecocentre Karpaty in Nová Lhota, Hodonín. Due to the low-temperature nature of the source and the mode of usage of the building, it is recommended to accumulate the heat generated in the hot water storage tank. The preheating of potable water is considered as its primary benefit. In case of sufficiently high temperature of the thermocompost, the design also includes the possibility of preheating of heating water. In conclusion, the thesis evaluates the financial costs of the project and determines the financial savings. These have – due to the low frequency of the building usage and the consumption of hot water reach – relatively low values.
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Design of heat transfer and recovery systems for Thermocompost
Dokoupilová, Bára ; Jícha, Miroslav (referee) ; Fišer, Jan (advisor)
The following master’s thesis examines the use of biothermal energy released during the decomposition process of composting. The aim of this thesis is to explain the heat generation principles of composting, to summarize its consumption possibilities, and to design a suitable use of the source for the demands of a real building. First, the theoretical framework compares various options of the biomass utilization. It then describes the biochemical course of organic matter decomposition, and conceptualizes the term thermocompost as well as different methods of heat extraction. Subsequently, it lists ways of applying this technology in practice. Second, the empirical part uses the findings to propose a compost pile installation, and its connection to the current heating and hot water system in Ecocentre Karpaty in Nová Lhota, Hodonín. Due to the low-temperature nature of the source and the mode of usage of the building, it is recommended to accumulate the heat generated in the hot water storage tank. The preheating of potable water is considered as its primary benefit. In case of sufficiently high temperature of the thermocompost, the design also includes the possibility of preheating of heating water. In conclusion, the thesis evaluates the financial costs of the project and determines the financial savings. These have – due to the low frequency of the building usage and the consumption of hot water reach – relatively low values.
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|
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Compost heating system for the hot water preparation
Dokoupilová, Bára ; Baxant, Petr (referee) ; Bajko, Jaroslav (advisor)
Using energy that is generated during decomposition processes in organic matter, is the fundamental theme of this thesis. While the following research succeeds to present the possibility of heat recovery using a compost heater, it also introduces composting in the context of ecology and global warming. The work analyses biochemical processes taking place in the decomposition of biomass, and explains the thermomechanical principles of heat transfer in the compost heater. The aim of the practical section of this work is to evaluate the measured data and verify the functionality of the compost heater assembled in the pilot experiment. The results confirm the compost heater is able to deliver the required power. However, its lifetime is closely dependent on the conditions of the compost environment. A key factor is not only a suitably chosen mixture for composting but also its thermal insulation. In the final section, examples of specific case studies based on the use of biomass for energy purposes, are presented.
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