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Design of a heating system for a multifunctional house
Barták, Jiří ; Horák, Petr (referee) ; Vyhlídalová, Karolína (advisor)
The bachelor thesis is divided into the theoretical, computational and project part. In the theoretical part, I deal with the design and description of the ground - water heat pump for the object. In the computational part, I deal with the design of the heating system and a hot water preparation in the building of the multifunctional house Rezidence Chelčická in České Budějovice. The building has four floors. On the first floor there is a commercial premises with garages and on the remaining floors there are residential units. The building is designed with a water-ground heat pump, indirect heating tank for hot water preparation and heating of the building is provided by floor convectors, plate and pipe units. The last part of the project includes a technical report and drawings for the specified object.
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Dynamic model of a heat pump with plate heat exchangers and ecological refrigerant
Strmiska, Pavel ; Řehák Kopečková, Barbora (referee) ; Pokorný, Jan (advisor)
For the optimization of a heat pump, there is a need to possess its dynamic model. One of the freely available tools for creating such a model is the language Modelica and its open-source compiler OpenModelica. The thesis aims to research options for creating dynamic models of refrigeration circuits with the ecological refrigerant R290 and its components in Modelica, to create the circuit and subsequently validate it using previously measured data. Models of basic components of heat pumps - compressor, condenser, evaporator and expansion valve are created in a way described in the thesis. A simplified model of a refrigerant loop is also created
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On-line calculators for the design of renewable energy installations
Ondráček, David ; Pospíšil, Jiří (referee) ; Linda, Jakub (advisor)
This thesis focuses on the field of renewable energy sources (RES). It focuses on the topic of computational tools that manage the design process of a system using RES. These tools are introduced, their calculation methodology is described and then they are evaluated. As a part of this thesis there is also introduced a design of a unique calculation tool. This tool calculates the energy balance of a dwelling using solar energy and a heat pump.
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Examining the Impact of Demand-Side Management Through Dynamic Simulation: Integrating Smart-Grid-Ready Control of Residential Heat Pumps
Horváth, Miklós ; Takács, Zoltán ; Gergely, László Zsolt
This paper investigates the suitability of air-to-water heat pumps for smart grids, with a particular focus on load shifting. The research uses dynamic building energy simulations to show that the utilisation of these features effectively addresses the energy consumption challenges of heat pumps while ensuring that heating and domestic hot water demands are met. The implemented control system successfully shifts the morning and evening peaks to the daytime period, resulting in a modest 2% increase in total energy demand.
These results not only demonstrate the balancing of heat pump energy consumption, but also provide insights for the development of objective functions. Such functions can play a key role in supporting the smooth integration of renewables into the wider energy framework.
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Expansion valve replacing with the capillary tube
Devečka, Viktor ; Tuhovčák, Ján (referee) ; Hejčík, Jiří (advisor)
V súčasnosti sa kladie veľký dôraz na znižovanie produkcie emisií, čistotu a kvalitu životného prostredia. Tieto trendy sa týkajú všetkých odvetví, tak isto aj stavebného priemyslu a vykurovania budov. Doposiaľ bolo najrozšírenejším typom vykurovania spaľovanie fosílnych palív. Do popredia sa však dostávajú tepelné čerpadlá a začínajú zaberať výrazný podiel trhu. Kvôli dopytu po tepelných čerpadlách vzrastá počet výrobcov a konkurencia. Cieľom výrobcov je zvyšovanie účinnosti tepelných čerpadiel a zároveň znižovanie výrobných nákladov na dosiahnutie lepšej pozície na trhu. Predložená práca sa zaoberá procesmi prebiehajúcimi v chladivovom okruhu tepelného čerpadla. Skúma správanie chladiva počas kondenzácie a možnosti zvýšenia účinnosti tepelného čerpadla. Zvýšenie účinnosti je dosiahnuté podchladením chladiva počas kondenzácie na zvýšenie tepelných ziskov. To je dosiahnuté zaradením druhého elektronického expanzného ventilu za kondenzátorom. Táto technológia je však finančne náročná. Práca sa zaoberá výpočtom kapiláry na základe praktických meraní, ktorá bude zadržiavať chladivo v kondenzátore a bude plniť podobnú úlohu ako expanzný ventil. Následne sú porovnané výsledky jednotlivých meraní. Výsledky sú porovnané voči jednoduchému systému, kde nedochádza k podchladeniu chladiva. V závere práce je analýza výsledkov jednotlivých systémov.
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Measuring and Control System for Heat Pump
Ščepka, Ondrej ; Morávek, Jan (referee) ; Mastný, Petr (advisor)
This master thesis describes the issue of the measuring and control system for the heat pump. In the first part of the thesis is described the principle of heat pump activity, its basic components. The second part contains the distribution of heat pumps according to the method of obtaining and transferring the heat. The following chapter contains the description of system status before the modernization. In the practical part of this thesis is the proposal and realization of new control and monitoring system including the description of individual components. In the conclusion of the thesis is a verification of the use of proposed control and monitoring system of heat pump for the measuring of its operational characteristics.
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Heating and cooling systems in office operations
Dostál, Petr ; Horák, Petr (referee) ; Formánek, Marian (advisor)
The diploma thesis deals with the design of the heating and cooling system, inclu-ding hot water preparation for the administrative part of the production hall. The first part of the thesis briefly discusses the history of heating and cooling of office buildings, legislative requirements and current solutions. The second part contains the design of the entire heating and cooling system with heat pump as a source of heat and cold. The final part of the thesis describes the experimental measure-ment and evaluation of the efficiency of the ice rink source.
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Modern Trends of Heating of Family House
Dohnal, Jakub ; Suk, Ladislav (referee) ; Lisý, Martin (advisor)
This bachelor thesis deals with modern trends of heating of family house. At the beggining is indicated brief history and current sources for heating of family houses. After this is described a research of various technologies for heating with their advantages and disadvantages. The last part is given to comparison all methods of heating and overall evaluation.
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Creation of Documentation for construction with design of control and visualisation for luxury house
Doležal, Petr ; Klaban, Jaromír (referee) ; Bátora, Branislav (advisor)
The thesis deals with an intelligent wiring including a control and visualization design for a family house. The goal of the thesis is to create a project of a high and a low voltage wiring for a family house including a design of an intelligent wiring. The thesis introduction describes an intelligent wiring and a comparison with a classic wiring. The next two chapters deal with the most used systems and a detailed description of the selected system Foxtrot. The chapter number 5 addresses the project documentation creation for a high and a low voltage wiring. A performance calculation of a heat pump used for heating is described in the following chapter. The functional program for control and visualization of heating, lighting, shading and security is described at the end of the thesis.
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