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Utilization of absorption systems in the heating systems
Vidlák, David ; Špiláček, Michal (referee) ; Pospíšil, Jiří (advisor)
Main goal of this work is familiarization with basic features of absorption heat pumps and it’s growing importance on the market. In the first part of the work there is a research for clarifying facts associated with such pumps. In the introduction there are descriptions of basic information from the field of heating industry and its connections to our systems. Next there is a brief analysis of price changes in electricity and heat in the last five years. Main part of the analytical section is a description of the used absorption system. Second part of the work is focused on the calculation of the absorption system itself. First there is calculated internal and external part of the device according to the parameters from GE Power s.r.o. After this step there are parametric studies based on changes of key parameters of the default device for a demonstration of the behavior of a heating pump. In the end of the work there is a integration of the unit into the heating cycle for variations including flue gas condenser and using a cooling water from the turbine condenser.
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Application of recent methods for synthesis of heat exchanger network
Kunc, Vlastimil ; Kohoutek, Josef (referee) ; Jegla, Zdeněk (advisor)
Master’s thesis deals with the problems of heat exchanger network synthesis and compare the present methods with emphasis on Pinch Design Method and deterministic method. Based on theoretical formulation of deterministic model the computer program for heat exchanger network synthesis was developed in the software Maple environment. Developed software implementation of deterministic method has been applied to several case studies.
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The Effect of the Bypass Factor on Design and Geometry of the Evaporator for the Cooling Unit
Vytasil, Michal ; Rubinová, Olga (referee) ; Rubina, Aleš (advisor)
Diploma thesis focuses on effect of the bypass factor on design and geometry of the evaporator for the cooling unit of data centre. Effect of the bypass factor on individual design parameters is solved in detail. All dependendecies are captured by using graphs in which s placed a cement on that parameter. In part C, mathematical and physical solutions are demonstrated calculations and processes leading to the design of the exchanger. In the end, evaluation of the calculations is done and there is also showed possible improvements for the practise.
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Airconditioning of sports centre
Vacková, Tereza ; Tesař, Zdeněk (referee) ; Rubina, Aleš (advisor)
The aim of the present bachelor thesis is to design air-conditioning devices in specific sections of a sports centre. The individual devices are designed to meet the hygienic, operational and functional requirements as demanded by the indoor microclimate of the premises. Devices 1 and 2 ensure the indoor air circulation, coverage of heat loss in winter and heat rise in sum-mer. Device 3 serves as a hot air ventilator for the hygienic facilities. The theoretical part of the thesis focuses on the issue of coolers. The practical part comprises of a proposal of three specific air-conditioning devices operating in a restaurant, squash courts and hygienic facilities. The result of the thesis is a project documentation of two air-conditioning devices for the given premises.
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Automatic workpiece changer
Hrbáček, Vlastimil ; Pavlík, Jan (referee) ; Blecha, Radim (advisor)
This bachelor´s thesis deals with description of authomatic workpieces change of CNC machines. Also it describes all matters connected with this issue. It describes division of automatic workpieces change. Dear reader gets look at the possibilities of realization workpieces change.
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Biomass biolers
Maar, Tomáš ; Moskalík, Jiří (referee) ; Baláš, Marek (advisor)
This bachelor’s thesis deal with a biomass boilers. In the first part of this thesis is discribed biomass like a fuel for a boilers. Second part shortly discribes a combustion proces and possible construction these device. Main thing in this thesis is calculations a exchanger and with it nessesery calculations quantiti of air, produkt of combustion, enthalpy, calculations heat transfer surface and suggestion exchange.
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System Proposal for the Use of Low-potential Heat
Kučera, Roman ; Bartoň, Jan (referee) ; Mastný, Petr (advisor)
This bachelor thesis deals with the problematics of a low-potential heat from the energetics point of view. It also deals with the sources and subsequent use of the low-potential heat. First of all, the thesis mentions the origin of these sources and also describes where they can be found. Also the technologies, that are able to utilize this heat, like heat pumps and solar collectors, are mentioned in this part of the thesis. In its next part, the bachelor thesis deals with use of the waste heat for heating and production of electrical energy. In the last part, the thesis presents the project that introduces a specific concept of the system for object heating from the waste heat.
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