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Bio-gas plant heat utilisation effectivity analysis
Šmarda, Marek ; Frič, Ondřej (referee) ; Pavlas, Martin (advisor)
This thesis focuses on the analysis of heat efficiency and effectiveness of the Vojtěchov biogas station unit. The material balances were developed in connection with biogas created in the cogeneration unit. The heat produced by the cogeneration unit is distributed to reactors and drying rooms. Pursuing the main goal of the thesis, the research of the complete heating balance for all months has been conducted. Additionally, a variety of options were assessed, to find the best solution of how to increase the effectivity of the heat. As for the final solution, two recommendations have been proposed in the thesis. The first recommendation lies in a better usage of low-level heat distributed to the secondary fermentor. The second suggestion deals with the amount of heat from cogeneration unit to the system. The result of the analysis is the final recommendation on how to increase the efficiency of the heat usage and potential impacts of the solution on the subsidy according to the KVET standards received in the given year.
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Antenna for receiving of DVB-T signal
Šmarda, Marek ; Lukeš, Zbyněk (referee) ; Pokorný, Michal (advisor)
The content of this work is to study selected antenna systems suitable for receiving of DVB – T. The various antenna systems will be simulated in the program for the simulation of electromagnetic field (e.g, CST Studio) and the simulation results will be commented (e.g. graphs and diagrams of radiation). Selected antenna system will be made and experimentally measured.
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Miniature antenna for mobile applications
Šmarda, Marek ; Švanda,, Milan (referee) ; Pokorný, Michal (advisor)
This work deals with the most famous constructions of planar antennas. The work analyses selected methods of connecting planar antennas' charging with the possibility of impedance adaptation. An important part of the work consists of description of techniques for increasing bandwidth and conversely techniques for reducing the dimensions which are important for the design of planar antennas for mobile devices. The antennas were designed by means of theoretical basis and their properties were examined in the electromagnetic field simulator. The selected antenna model was constructed and its parameters were measured experimentally. The matching circuit for the antenna to tune it to different resonant frequencies was designed and constructed.
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Microwave induced pyrolysis of biomass
Šmarda, Marek ; Gal, Pavel (referee) ; Jícha, Jaroslav (advisor)
In this bachelor thesis there are informations about different methods of processing organic nature substrate with a focus on a waste processing using microwave pyrolysis. In sum it is possible to say that microwave pyrolysis is a progressive solution to process waste substrate. Due to evenly and rapid heating of organic nature substrate, this method is more effective compared to conventional methods of waste disposal. The result of this work is to submit information on processing waste substrate in the form of microwave analysis and subsequent economic evaluation.
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|
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Bio-gas plant heat utilisation effectivity analysis
Šmarda, Marek ; Frič, Ondřej (referee) ; Pavlas, Martin (advisor)
This thesis focuses on the analysis of heat efficiency and effectiveness of the Vojtěchov biogas station unit. The material balances were developed in connection with biogas created in the cogeneration unit. The heat produced by the cogeneration unit is distributed to reactors and drying rooms. Pursuing the main goal of the thesis, the research of the complete heating balance for all months has been conducted. Additionally, a variety of options were assessed, to find the best solution of how to increase the effectivity of the heat. As for the final solution, two recommendations have been proposed in the thesis. The first recommendation lies in a better usage of low-level heat distributed to the secondary fermentor. The second suggestion deals with the amount of heat from cogeneration unit to the system. The result of the analysis is the final recommendation on how to increase the efficiency of the heat usage and potential impacts of the solution on the subsidy according to the KVET standards received in the given year.
|
|
|
Microwave induced pyrolysis of biomass
Šmarda, Marek ; Gal, Pavel (referee) ; Jícha, Jaroslav (advisor)
In this bachelor thesis there are informations about different methods of processing organic nature substrate with a focus on a waste processing using microwave pyrolysis. In sum it is possible to say that microwave pyrolysis is a progressive solution to process waste substrate. Due to evenly and rapid heating of organic nature substrate, this method is more effective compared to conventional methods of waste disposal. The result of this work is to submit information on processing waste substrate in the form of microwave analysis and subsequent economic evaluation.
|
|
|
Antenna for receiving of DVB-T signal
Šmarda, Marek ; Lukeš, Zbyněk (referee) ; Pokorný, Michal (advisor)
The content of this work is to study selected antenna systems suitable for receiving of DVB – T. The various antenna systems will be simulated in the program for the simulation of electromagnetic field (e.g, CST Studio) and the simulation results will be commented (e.g. graphs and diagrams of radiation). Selected antenna system will be made and experimentally measured.
|
|
|
Miniature antenna for mobile applications
Šmarda, Marek ; Švanda,, Milan (referee) ; Pokorný, Michal (advisor)
This work deals with the most famous constructions of planar antennas. The work analyses selected methods of connecting planar antennas' charging with the possibility of impedance adaptation. An important part of the work consists of description of techniques for increasing bandwidth and conversely techniques for reducing the dimensions which are important for the design of planar antennas for mobile devices. The antennas were designed by means of theoretical basis and their properties were examined in the electromagnetic field simulator. The selected antenna model was constructed and its parameters were measured experimentally. The matching circuit for the antenna to tune it to different resonant frequencies was designed and constructed.
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