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Device for monitoring the environmental quality in the car
Doležal, Lukáš ; Szendiuch, Ivan (referee) ; Levek, Vladimír (advisor)
This bachelor's thesis deals with the design of equipment for monitoring the internal environment of the cabin of a passenger car. Equipment suitable for measuring force, atmospheric pressure, humidity, possible noise level and noise level. The main control element of the device is a microcontroller providing communication with the used sensors. The available data is shown on the display and is stored in memory. For communication with a computer, it is possible to use the USB interface using stored data that can be analyzed and processed.
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Biomass gasification with carbon dioxide
Budai, Karel ; Lisý, Martin (referee) ; Baláš, Marek (advisor)
This diploma thesis deals with the use of CO2 in gasification of biomass. The theoretical part is focus on description of gasification process and gasification reactors. The next part descripes the influence of the gasifitation medium composition on the properties of the generated gas. The experimental part is devoted to gasification of biomass on a fluidized bed generator, where the effect of CO2 concetration in the gasification medium on the properties of the generated gas is investigated. In the final part is the evaluation of the results.
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Field sensor network for microclimatological measurements
Juráň, Radovan ; Frýza, Tomáš (referee) ; Povalač, Aleš (advisor)
Tato práce je zaměřena na návrh terénní bezdrátové senzorové sítě pro mikroklimatologická měření, zejména výronů juvenilního oxidu uhličitho v oblasti hydrotermílního krasu, založené na LoRaWAN. V teoretické části práce je předložen přehled cílové oblasti, možností řešení měření, získávání a přenosu dat. Praktická část se pak věnuje kompletnímu návrhu celého systému, to znamená od měřicího zařízení přes koncentrátor a gateway až po backend odesílání dat do cloudového úložiště. Výsledky tohoto komplexního problému jsou prezentovány průběžně a přílohy obsahují detailnější a názornější ukázky.
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Separation and storage of CO2
Odložilík, Martin ; Chroboczek, Libor (referee) ; Pospíšil, Jiří (advisor)
The main objective of this work is to clarify the methods for CO2 capture and storage as an option to limit global warming. The first part is further explained by a phenomenon known as the greenhouse effect, there is illustrated his principle, the effects of climate change, the main factors increasing its intensity and its possible reduction. Framework of the second part is description of the technologies and methods of CO2 capture and storage, the individual steps in these processes and also the possible development in the future. Next chapter discusses the pilot research programs and application of referred technologies to in practice. The last part of this work is devoted to the economical aspect of the problems.
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Effective management of building technologies with a focus on measuring humidity and CO2 concentration
Bučko, Ondrej ; Bátora, Branislav (referee) ; Janík, Daniel (advisor)
The diploma thesis deals with automated measurement of humidity and CO2 concentration inside buildings. Results of this measurement form the input parameters for the effective management of technologies reducing the energy performance of buildings. In the introduction, the issue of indoor air quality of buildings and indicators characterizing this quality are approached. The technical part of the thesis consists of making a measuring device which contains two prototype sensors provided by Teco Inc. with online access to measured data. The measurement of relative humidity, CO2 concentration and temperature in the interior of the building with the made device is compared with commercially available devices for measuring selected parameters. For unambiguous interpretation of online data, the virtual machine with an online database is configured for the created measuring device. The possibilities of using the prepared measuring device to achieve a reduction in the energy performance of buildings are discussed in the final part.
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Analysis of thermodynamic cycles of heat pumps
Vendrame, Katia ; Hejčík, Jiří (referee) ; Klimeš, Lubomír (advisor)
This bachelor thesis focuses on heat pumps for residential applications and their functioning. The theoretical part describes components of heat pump and briefly discusses energy sources that can be used. The types of refrigerants, which are currently used in heat pumps, are discussed: except to the broadly used HFC refrigerants, also the use of carbon dioxide is described. Further, the theoretical part includes the theory of thermodynamical cycles used in heat pumps. In the practical part a computer program for a fundamental thermodynamic analysis of heat pumps was created. The functionality and applicability of the program are demonstrated in the solution fo several problems.
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Indoor environment in assembly halls
Janeček, Tomáš ; Počinková, Marcela (referee) ; Rubinová, Olga (advisor)
This thesis is concerned with the creation of indoor air and requirements on it, describes the components of the internal environment, in particular the formation of carbon dioxide and its properties. It also deals with the experimental measurement of the concentration of carbon dioxide in the classrooms and the subsequent evaluation according to the valid legal regulations. In the last part, I dealt with a proposal for the creation of internal systems that are specified by the building.
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CO2 Sources and Emission Trading System
Valentová, Helena ; Sitek, Tomáš (referee) ; Elbl, Patrik (advisor)
This thesis deals with issues of carbon dioxide emissions, its sources and legislation related to emission trading. The first part of the thesis provides basic information about carbon dioxide and its production. The second part summarizes sectors that emit the most carbon dioxide. The last part describes the international legislation related to emission allowances and carbon trading.
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System for Opening a Window Based on the Temperature and CO2 Concentration in the Room
Jůza, Tadeáš ; Bardonek, Petr (referee) ; Tisovčík, Peter (advisor)
The purpose of this work is to enable an automated maintenance of fresh air in a room. Using automated ventilation, so the smallest possible heat losses occur. The data from sensors of indoor and outdoor temperature, CO2, humidity, and window opening status have been collected and analyzed. Then a suitable algorithm has been selected to accomplish the required values. The program also contains an algorithm for predicting the system's behavior so the controlled appliances (window and heating) work together appropriately.
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Energy conservation in ventilation of buildings
Sláčík, Ondřej ; Kolbábek, Antonín (referee) ; Charvát, Pavel (advisor)
This bachelor’s thesis deals with various forms of building ventilation, especially energy conservation in ventilation. The first part focuses on the factors that influence the quality of indoor environment. The second section describes the concepts of ventilation and basic distribution of different ventilation methods. Another section deals with heat losses associated with ventilation. The last part deals with the various measures that leads to reduction of energy losses of ventilation, it is mainly controlled ventilation based on CO2 and heat recover.
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