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Optimization of heat generators for residential house
Smola, Vojtěch ; Horák, Petr (referee) ; Formánek, Marian (advisor)
This diploma thesis solves design of heating in a residental building. This work is focused on the selection of appropriate one of the two options a heat source, which are cascade heat pumps ground-water and gas condensing boilers. The theoretical part of the diploma thesis deals with introducing to the issue of heat pump systems. The functional principle of the widely most used types and particularized type ground-water. In the practical part calculation and design of heating system with selected heating source that is cascade of gas condensing boilers.
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Hot water quality for heat
Snášelová, Tereza ; Hirš, Jiří (referee) ; Počinková, Marcela (advisor)
The diploma thesis focuses on assesment of water quality in heating systems. The experiment includes description of used methods and meters as well as analysis of collected samples. The theoretical part describes selected water properties, quality meters and sources of heat according to the material of their heat exchanger. This thesis processes design of heating system and hot water preparation for complex of administration buildings. The project includes calculations of heat losses, system proposal and two versions of possible heat source. The first version offers solution with condensing boiler with heat exchanger from stainless steel, while the second version uses condensing boiler with heat exchanger from aluminium and silicon. Both versions have their own solution of safety equipment and water treatment.
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Substitution of district heating by gas boiler
Dobiáš, Ladislav ; Skála, Zdeněk (referee) ; Pospíšil, Jiří (advisor)
In this work, there is an overview of the design concept of condensing boilers and types of heat pumps. The current state of heating in company is assessed and possible variants are given for techno-economic evaluation. For boiler room with the gas boiler is prepared a proposal with condensation boiler. For parameters are designed and calculated proposals to form a condensing boiler. The end of the work is focused on the advantages of gas boiler and heat pump.
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Heating the building of hotel type
Fornůsek, Patrik ; Počinková, Marcela (referee) ; Horák, Petr (advisor)
The aim of this bachelor’s thesis is to design heating and hot water preparation for Vir hotel. The hotel is a new building with four floors. The thesis is devided into three parts. The theoretical part deals with the technical equipment of boiler rooms, gas heating, condensing boilers, regulation of heating systems and chimneys.The second part is focused on calculations of heat loss, a design of radiators, pipe dimensioning, a design of heat source, hot water preparation and design of safety devices such as expansion vessels and safety valves.The third part contains a technical report and technical drawings.
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Heat recovery
Dužík, Vojtěch ; Rubinová, Olga (referee) ; Počinková, Marcela (advisor)
The aim of this diploma thesis is to theoretically, practically and experimentally explore different ways of waste heat utilization in the building industry. The work is divided into three basic passages. In the first part I analyze the theoretical nature of the various physical processes in recovery and is there a practical use. More emphasis is placed on heat recovery from wastewater, as I am using this way of recuperation in other parts of this diploma thesis. In the second point, I apply the use of heat from waste water when designing a technical solu-tion for the reconstruction of the heating system of the clinic. The design is solved in two variants. The first suggested location lokali- them, recuperative, shower exchanger operation rehabilitation, bath and massage. In the second variant, central recovery is envisaged using a heat exchanger in the accumulator well and water-water heat pump. Based on the technical and economic evaluation, the first option was selected. The second variant is ineffective and remains only in the case study. In the last section, I experimentally investigate the thermal efficiency and the relative savings of the heat exchanger, which is designed in the first variant of the second part. Measurement, processing of results and evaluation I made for laboratory conditions and for real conditions with the showering person. Finally, I appreciate the eco-nomic benefits of this facility.
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Measurement of the fans characteristic
Coufalík, Martin ; Štětina, Josef (referee) ; Katolický, Jaroslav (advisor)
This bachelor thesis discusses a fan characteristics and their measurement. The aim of this thesis is to compare the results of measurements, which were done in certified laboratory with results of measurements done in alternative measuring stands. In first part of the thesis are described the basic types of fans and inclusion fans in turbo–machines. Furthermore, the thesis deals with a particular fan, which is part of the combustion system of condensing boiler. This fan is also the object of measurement in practical measurements, which were measured as a part of this thesis. This practical part of the thesis includes also analysis of test track, the measurement procedure and all calculations according to ISO ČSN 5801. At first were carried out measurement in certified laboratory and then in three different measuring stands. In conclusion were these results compared with optimal results.
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Performance of heat
Kocandová, Karolína ; Formánek, Marian (referee) ; Počinková, Marcela (advisor)
The topic of the diploma thesis is the operational efficiency of heat sources . The thesis is divided into three parts. In the first part a theoretical solution of the heat sources efficiency can be found. In the second part there is a calculation solution of the project. The project solves the heating of a football stadium. Two variants of the heating source and warm water preparation are suggested and the variants are consequently compared and evaluated. The last part is experimental - the topic of the experiment is the efficiency of heat sources.
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Space heating and ventilation in a two-generation house
Kazda, Jan ; Hejčík, Jiří (referee) ; Charvát, Pavel (advisor)
This Master's thesis deals with the evaluation of a current state of two-generation villa and its following proposal of the optimization. Evaluation includes calculation of heat loss of a current state. Optimization is based on the reduction of heat loss in the building, pressure balance of the system, change of heat source and installation of balanced ventilation. Chapter describing regulation of technology follows and in conclusion indicative price for the whole suggested technology is calculated.
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Heating apartment building
Šrejma, Jan ; Vendlová, Lucie (referee) ; Počinková, Marcela (advisor)
The aim of this bachelor's thesis is design of heating system and warm water preparation of apartment building. The project consists of calculating heat losses, heat transfer surfaces designing, dimenzioning of pipes and designing of heat source for heating and warm water. The heat source is gas condensing boiler. Warm water in DHW cylinder is heated by heating water from boilers. The aim of theoretical part consist of gas condensing boiler.
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Design of an HVAC system in a retrofitted family house
Vacenovský, Jan ; Lízal, František (referee) ; Charvát, Pavel (advisor)
This work is devoted to the design of a microclimate facility in a family house. The first part contains analysis of thermal losses before and after using thermal insulation. Based on this analysis, a heating system is proposed, including the necessary technical calculations for the operation of the system. As a heat source, a condensing boiler is selected. At the next point, the thesis focuses on the calculation of the heat gains in selected rooms in order to design a cooling device. A multisplit system is selected for cooling the rooms. In the next part the thesis deals with the design of forced ventilation of selected rooms. The ventilation system provides the necessary air exchange and covers heat losses through ventilation. At the end of the thesis is outlined the concept of regulation of individual systems and also the requirements for individual professions are described.
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