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Design of a cooling circuit for heat removal from a steam turbine condenser
Susna, David ; Pospíšil, Jiří (referee) ; Kracík, Petr (advisor)
This thesis deals with the problems of wounding of low potential transferred from steam turbine condenser. First, in the theoretical part variations of steam condenser design are described. Then there is a description of variations of cooling cycles and possibilities of their operation range. In second part of the thesis there are two common cooler options chosen. Those are wet cooling tower with natural draft and dry chiller with forced draft. Two types of cooling liquid are chosen to be used for dry cooling. These are water and the other one is 50 % mixture of water and propylene glycol. Based on the calculation results of both cooling cycle variations appropriate pumps are chosen, fan for forced convection respectively. Parts of the thesis are also projection drawings for both calculated variations.
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Control system for circle of coolig water
Kouřil, Jan ; Chomát, Luděk (referee) ; Pivoňka, Petr (advisor)
Main focus of bachelor thesis is to present practical construction of cooling circuit in customer quenching room, in all it's wide. From simple introduction to technological background (cooled technologies) and construction of circuit itself (cooling technologies), up to electronics control units, control algorithm and finaly IBM/PC based visualization under Control Web enviroment.
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The influence of heat sources to microclimate in indoors space
Janková, Martina ; Ell, Jiří (referee) ; Rubina, Aleš (advisor)
This master thesis with the influence of heat sources to microclimate in indoor space. The aim of the thesis was to make the calculations of the dynamic behavior in indoor space and suggest ventilation systems for exhaust heat load. for found values. In the practical part of the thesis, individual systems are describing and then they are valorizing in accordance with energy intensity and thermal comfort.
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Condensing steam turbine
Martynek, Filip ; Fiedler, Jan (referee) ; Kracík, Petr (advisor)
Content of this thesis is design of one-housing condensing steam turbine with two uncontrolled extractions. First part is describing design of balance scheme. Including cycle joints calculation, design of equipment for whole steam and condense cycle. Thesis continues with preliminary and detail design of regulativ stage. Main goal of this part is thermodynamic calculation of flow channel. Second part is describing lubricating oil and cooling system. Contains process description of lubricating oil scheme including calculation, specification of components and pipe branches design. Diploma thesis is finished with detail lubricating oil scheme.
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Cooling systems in transport vehicles
Andrlík, Ladislav ; Fojtlín, Miloš (referee) ; Tuhovčák, Ján (advisor)
The purpose of this work is to examine currently used types of automobile cooling systems. This examination is presented in the form of a search report. The history of air conditioning is briefly described in the introduction of this work. The work then deals with the classification and description of cooling systems and their partial components which are complemented by pictures for better visualization. The primary focus is on the types and constructions of the compressors since the compressor is the fundamental element of all air conditioning circuit. The work concludes with information about coolants and adequate oil in use in relation to their ecological impact.
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Energy evaluation of systems VRF
Gašpár, Juraj ; Hanyk, Kamil (referee) ; Rubina, Aleš (advisor)
This master thesis deals with VRF systems, which are used for extensive commercial and office buildings, or for buildings where there are multiple zones with different required parameters. The aim of the thesis is to explain the functions of the system and their evaluation and inclusion into energy classes according to the new legislation. The practical part deals with an application of the VRF system and its variants in the building of bank branch. The comparison of initials costs and resultant costs to operate the system. The experiment focuses on comparison of the measured values of VRF system and their comparison with data from the manufacturer.
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Gas heat pumps based on stroke engine
Bedřich, Miroslav ; Fiedler, Jan (referee) ; Pospíšil, Jiří (advisor)
The aim of this Diploma thesis is a description of gas heat pump (GHP) technology and the possibility of their usage in real life. Also units from the major manufactures of GHP units in the Czech Republic and abroad are evaluated from technical and economical point of view. The thesis as well includes a part where is decided if it is better to further develop GHP units with higher or lower performance. In the last part of thesis are cooling circuits designed for both lower and higher performance, than performance of existing GHP unit Polo 100. As a result, the units with higher performance are more perspective. Therefore heat plate exchangers, which serve as a condenser and an evaporator, are designed for unit with higher performance.
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Design of new cooling circuit
Albert, Tomáš ; Milčák, Pavel (referee) ; Baláš, Marek (advisor)
This diploma thesis introduces the reader to the design of the new cooling circuit and its modernization. Part of this is the calculation of the heat exchanger and the design of other parts, such as pumps or cooling towers. It also deals with the possibility of using waste heat for specific conditions.
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Design of a cooling circuit for heat removal from a steam turbine condenser
Susna, David ; Pospíšil, Jiří (referee) ; Kracík, Petr (advisor)
This thesis deals with the problems of wounding of low potential transferred from steam turbine condenser. First, in the theoretical part variations of steam condenser design are described. Then there is a description of variations of cooling cycles and possibilities of their operation range. In second part of the thesis there are two common cooler options chosen. Those are wet cooling tower with natural draft and dry chiller with forced draft. Two types of cooling liquid are chosen to be used for dry cooling. These are water and the other one is 50 % mixture of water and propylene glycol. Based on the calculation results of both cooling cycle variations appropriate pumps are chosen, fan for forced convection respectively. Parts of the thesis are also projection drawings for both calculated variations.
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Design of new cooling circuit
Albert, Tomáš ; Milčák, Pavel (referee) ; Baláš, Marek (advisor)
This diploma thesis introduces the reader to the design of the new cooling circuit and its modernization. Part of this is the calculation of the heat exchanger and the design of other parts, such as pumps or cooling towers. It also deals with the possibility of using waste heat for specific conditions.
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