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Small scale photovoltaic power plant
Hamerský, Tomáš ; Škorpík, Jiří (referee) ; Pospíšil, Jiří (advisor)
The content of this bachelor thesis is the design of a small photovoltaic power plant for family house using a heat pump. The thesis is divided into the theoretical and practical part. The theoretical part provides a basic view of individual concepts connected with the photovoltaic power plant, where the individual concepts and principles of each device combined with operation are briefly described. The practical part is focused on determination of the energy balance for family house in the form of electricity and heat, as well as the incident solar radiation in the location of the object for fixed and positioning systems. In a conclusion, there is a determination of the individual variants of the photovoltaic system in order to determine the optimal variant.
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Energy meter with PLC communication
Szalbot, Michal ; Mlýnek, Petr (referee) ; Koutný, Martin (advisor)
Our thesis is about development of equipment, which combine two technology. First technology is wattmeter which is used to energy measurement and second is Power line communication. Wattmeter needs two variables for measurement, voltage and current. Voltage measurement is less difficult than measurement of current. Voltage can be reduce and measured by A/D converter. Current has to be transform to voltage and than can be measured same way. To do that we use current transformer. Than we design program for the microcontroller, involvement and PCB. Wattmeter is connect to PLC modem which has been chosen. Fusing this two technology we create wattmeter network. Next step was program which is used to network control and data collecting. This data are used to create charts in web application.
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Energy Performance of sewerage networks
Žďára, Jan ; Hluštík, Petr (referee) ; Raclavský, Jaroslav (advisor)
First section of this master thesis is background research of energy demand of sewer systems. Intrudoctory chapter explains basic concepts. Second chapter is dealing with Czech and European legislation concerning energy consumption of water service. Third chapter describes energy demand of sewer systems. In this chapter there are described conventional gravity, vakuum and pressure sewer systems and components with major power consumption. Fourth chapter describes actual state of energy demand of WWTP and possible ways of improving power consumption of WWTP. Second section is a review of energy consumtion of vacuum systems of five different municipalities including one WWTP. Measured and evaluated outputs were used to create energy audit methodology for sewer systems.
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Optimization proposal of size of PV systems
Vrzal, Martin ; Baláš, Marek (referee) ; Pospíšil, Jiří (advisor)
The master thesis deals with proposal of size optimization of PV systems. According to results of optimization, alternative solutions of photovoltaic system were proposed for family house. From the perspective of costs efficiency were compared investment costs and savings of implementation of electricity supply directly to private consumption. Particularly for each of the proposed solution, profitability assessment of comparing purchasing costs and returns on investment was performed. Theoretical part of the master thesis consists of introduction into solar radiation principles, structure and functionality of photovoltaic systems, electronics inverters and accumulation of electric energy. The practical part is focused on measuring of electricity consumption in particular family house, calculation of sunlight intensity hitting tested house, making various solutions of photovoltaic power plants placed on the family house in order to evaluate returns on investments. In conclusion are summarized all results of investigated solutions according to economics aspects.
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Energy Consumption of Smart Device in Smart Houses
Bína, Ondřej ; Pluskal, Jan (referee) ; Matoušek, Petr (advisor)
A large number of manufacturers are currently developing smart energy-saving devices, which should benefit not only with their available settings, but in many cases also save households on the consumption of water, gas, or electricity. This work focuses on verifying the electricity consumption of the most commonly used smart devices in the home that a person can purchase. The goal is to measure the consumption of these appliances in the home and subsequent analysis of the obtained data. As part of the analysis, the key findings are the comparison of the measured data with the data given by the manufacturer and with the consumption of their original "stupid" alternative. In addition to the mentioned analysis, the output of the work is also a recommendation of suitable device modes for specific use cases.
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Econometric Modelling of Natural Gas Consumption in the Electricity Sector in the Midwest Europe Region
Kunc, Tomáš ; Michalíková, Eva (referee) ; Doubravský, Karel (advisor)
The thesis deals with econometric modeling of natural gas consumption within the electricity industry for the purpose of electricity production. The first part of the thesis focuses on theoretical foundations, describing the electricity market and econometric modeling, with a particular focus on regression analysis. In the analytical part, this knowledge is applied to the selection and adjustment of potential factors. As part of the proposed solution, a regression model is constructed that describes natural gas consumption in electricity production as a function of selected factors. The predictive ability of the model is verified using data from a testing period.
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Monitoring the electricity consumption of the building
Franěk, Vít ; Bátora, Branislav (referee) ; Janík, Daniel (advisor)
The thesis deals with the issue of metering devices in buildings that provide instant and cumulative information for electricity providers and consumers. This information is provided by individual metering devices in order to reduce costs and optimize energy consumption. The thesis presents a theoretical analysis of the metering devices and their subsequent practical use for metering and evaluation of the results with recommendations for consumers.
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Rozdíl náročnosti zdrojů (energie, voda) u konvenčního a robotického dojení
TUREK, Tomáš
This paper focuses on the differences in electricity and water consumption between conventional and robotic milking parlours. Data collection from consumers was carried out using a questionnaire method. The developed questionnaire was sent to farms with cattle milk production. From the data collected from the consumers, graphs and tables were created from which individual electricity and water consumption can be determined.
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Power Systems Ranges of Main Parameters
Řehořek, Tomáš ; Gála, Michal (referee) ; Paar, Martin (advisor)
The thesis deals with description of the power system, parameters of it’s components and the range of outputs and consumption. In the first part the structure of the power system is described as well as the fundamental division of electric grids. In this part the work also touches on the ways of supllying the elctric traction. Furthermore the amount of production and consumption is mentioned. In the second part this work focuses on description of selected components of the power system and their real parameters. Furthermore the work also touches on the matter of electromobility and battery energy storage systems. In the last part of this work a few simple methods of consumption estimation are presented. This work also includes two infografics, that describe the power system.
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Optimization of Electricity Costs during Construction
Fuchs, Marek ; Pelčák, Svatopluk (referee) ; Nový, Martin (advisor)
Diploma thesis deals with the problem of electric energy utilization during the construction realization. The theoretical part elaborates the topics of construction project management and fundamental methods of construction price determination. Moreover, it explains the topic of construction site equipment and describes the employment and the expensiveness of the electric energy on the construction site. The practical part of the diploma thesis shows confrontation of the theoretical background with practical use. A detailed description of the total costs of electric energy was calculated based on the study of model building. The main objective of the thesis was to characterize the influence of the electricity price variation on the total expense of the construction and proposes the optimization of the electric energy cost.
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