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Systems reducing the energy dependency of buildings
Mařák, David ; Köbölová, Klaudia (referee) ; Kudela, Libor (advisor)
This thesis focuses on systems that reduce the energy dependence of buildings, such as heat pumps, photovoltaics, heat recovery, and the utilization of geothermal energy. The main objective of this work is to analyze individual methods and technologies aimed at optimizing energy efficiency. The thesis explores the impact of these systems on the sustainability and ecological footprint of buildings, combining a theoretical overview with practical cases to provide a comprehensive perspective on the subject.
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Comparison of energy consumption of selected wastewater treatment plants
Bodnar, Maryna ; Mergl, Václav (referee) ; Repková, Martina (advisor)
The aim of this final bachelor's thesis is to compare the energy consumption of two wastewater treatment plants. One wastewater treatment plant is located in the Czech Republic and the other in Ukraine and both of them receive an input of wastewater corresponding to the category of 10 000 – 100 000 equivalent inhabitants. The thesis described the wastewater treatment processes, their energy intensity, legislation related to wastewater treatment and energy intensity. Both WWTPs were compared with respect to their power consumption and their efficiency. Based on the obtained data, the processes that consume the most electrical energy were identified to ensure sustainable and efficient operation of the WWTPs.
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Single-family house in Kostníky
Hodková, Zuzana ; Jechová, Marie (referee) ; Ostrý, Milan (advisor)
This bachelor’s thesis focuses into a detached near-zero-energy house in Kostníky. It includes documentation of architectural-structural design, including drawings, fire safety design, and building physics, along with documentation for building services safety. It is a two-storeys building for a family of four. The house is planned with two flat roofs and is based on a double layer of XPS panels. Reinforced concrete floor slabs and sand-lime masonry are used for load-bearing construction. Building envelope is insulated with polystyrene combined with mineral wool. The layout of the ground floor includes an entry hall with a walk-in closet, a bathroom, a study, a living area with a kitchen corner, a technical room, and a garage. The first floor is a private zone with children's rooms, a master bedroom, a bathroom, and a walk-in closet. Rainwater from the roof will be directed to a storage tank, where it will be reused with the assistance of a pump and a discharge device. Rainwater utilization is implemented for toilet flushing, while remaining water needs are supplemented from the public water supply. Wastewater is directed into the public sewage system. Ventilation in living areas is managed by an air handling unit and ceiling outlet. For heating, a ground-water heat pump is proposed to heat water for underfloor heating. Drinking water is heated by using a storage water heater. Electricity is supplied from the public grid and supplemented by photovoltaic panels. The energy performance certificate of the buildings was prepared by the Energetika software and the construction of the Detached house in Kostníky has been classified into class A (very efficient).
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Energy balance in wastewater treatment plants
Novotný, Jan ; Raclavský, Jaroslav (referee) ; Hluštík, Petr (advisor)
This masters thesis is dealing with energetic evaluation of selected municipal WWTP – WWTP Polička. First chapter, introduction explains basic terms and goals of thesis. Second chapter explains energy audit, energy audit process its scope and contents. Third chapter deals with assesing life cycle using LCA (life cycle assesment). Fourth chapter deal with energy consumption at WWTP in Czech Republic as well as in the world. Fifth chapter describes technology of WWTP Polička and its fundamental objects. Sixth chapter is assesment of WWTP Polička from hydraulic point of view and assesment of selected machinery. Further there is summation of capital and operational costs followed by capital investment return.
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Energy Optimization and Operation of Public Lighting
Houdek, Michal ; Škoda, Jan (referee) ; Baxant, Petr (advisor)
An objektive of this university graduation work is an essay about any possibilities for energy savings with operation optimalization of public lightings. Understandings and introduction operation problems of public lighting is devote in first part of this work. Here we can chapters as Importance of public lightings or Gulations and norms in ralation to public lightings. The bigist and special attention is concentrated to description to public lightings systems and it is basic components. Another main part of this work is demonstration of used systems that are leading to energy savings for public lightings. These problems are detailed and explained in chapter Regulation of public lighting systems. This graduation work is describing individual types of regulation with the systems that are used with these regulatios in systems of public lightings. The assignment of last part of graduation work was to make sample calculation of energy demand and calculatin of yearly consumption on exemplary temporary system of public lightings. For this occasion was extra special auxiliary application sytem set up inside the Microsoft Excel program where all individual calculations were done.
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Use of Renewable Energy Sources for Water Recovery
Patera, Jan ; Vojtek, Martin (referee) ; Baxant, Petr (advisor)
The bachelor's thesis deals with a summary of the basic theory for obtaining water from air humidity and it‘s following treatment in order to meet the hygienic regulations of drinking water. It presents the basic principles usable for obtaining water from the air, also presents the basic principles, including a basic overview of existing equipment for obtaining water from the air. It defines ideal conditions for obtaining water using atmospheric water generators. In a specific locality is determined a proposal for the water yield with energy performance during the year. Furthermore, the work deals with the use of renewable resources in obtaining water and the possibility of its subsequent treatment.
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Optimizing the operation of wastewater treatment plants
Singrová, Veronika ; Bábíček, Richard (referee) ; Hluštík, Petr (advisor)
The aim of this diploma thesis is to evaluate two selected wastewater treatment plants and to propose appropriate measures related to optimization of operation. Wastewater treatment plants are from the Jihomoravský and Zlínský regions and both come under the category 2 001 - 10 000 equivalent inhabitants. In the diploma thesis there is an assessment of construction objects, machinery, cleaning efficiency and energy performance of both WWTPs. The calculations are based on the real measured values for the last three years and on the basic parameters of individual objects and equipment. The present state of the two wastewater treatment plants is summarized and optimization proposals are sorted by importance.
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Energy performance of low-energy houses
Strava, Jan ; Štelcl, Otakar (referee) ; Baláš, Marek (advisor)
The bachelor´s thesis focuses on low-energy houses. It will prove wheter or not a house built as low-energy house really does meet requirements for this classification. Further it suggest investment options for additional reduction of energy consumption. The actual results of 10 year old building will be compared with investor´s original requests.
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The impact of executing new thermal insulation on a apartment building on the expenses associated with its operation
Machová, Petra ; Kosová, Jaroslava (referee) ; Čech, Josef (advisor)
The topic of the diploma thesis „The impact of executing new thermal insulation on a apartment building on the expenses associated with its operation “ is a draft and appraisal of four variants of thermal insulation of the building. The thesis deals with the assessment of the current proposal for apartment building envelopes along with proposing alternative plans with emphasis on reducing heating costs. The first section describes the types of buildings according to heating demand and a list of different variants of thermal insulation materials. The second part is devoted to a specific apartment building in the Ústí nad Labem for which there are designed in four variants of insulation. The work includes thermal assessment in original condition and the assessment of new condition modified by adding thermal insulation. Through research will bedetermined price of implementation of proposed insulation options together with the costs of operation of the apartment building. In conclusion, the diploma thesis evaluates the payback period of insulation.
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