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Daily launches steam turbines and their impact on the life of the turbine
Štěpánová, Lenka ; Kracík, Petr (referee) ; Fiedler, Jan (advisor)
This thesis concentrates on the problem of steam turbines, which require daily cycling by reason of an unstable nature of the energy source. The first part focuses on the current trends which have caused still increasing demand for steam turbines designed for every day start-ups. There is a description of the steam turbine start-up procedure and the heat transfer theory thanks to which the list of the critical parts of the steam turbine has been selected and with respect to these critical points has been created the draft of technical measures for the turbine. The thesis is finished with an evaluation of the life of the steam turbine casing as one of the critical parts and with a proposal for a calculation of a start-up time of the steam turbine.
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Heat exchangers, influence of cycle efficiency
Khůlová, Jitka ; Štěpánová, Lenka (referee) ; Fiedler, Jan (advisor)
The master's thesis deals with district heat exchangers in a thermal steam cycle of combined heat and power plants and with types of condensate cascades in the multilevel heating systems. Calculation of the thermal efficiency of electricity generation is provided for the investigated thermal cycle, which was modified for three different types of cascades. Besides that, a comparison of useful electric power and electricity generation through one year period of working is made. A significant part of the work is devoted to the design of district heat exchangers, including the calculation of thermal power and heat transfer area. Main dimensions are proposed for each exchanger together with a basic drawing.
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Steam condensing turbine
Štěpánová, Lenka ; Krbek, Jaroslav (referee) ; Fiedler, Jan (advisor)
The aim of this Master’s thesis is to design a steam condensing turbine with three bleeds. First, a heat balance of the steam cycle is calculated, followed by thermodynamic and stress calculation of the turbine blading and design of a gland steam system and drain system. A price proposal is suggested for the given steam turbine. In the end, a design drawing of the steam turbine is constructed.
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Interests of children with Asperger's syndrome from the perspective of parents
Štěpánová, Lenka ; Sotáková, Hana (advisor) ; Kucharská, Anna (referee)
Our study conserns the problematics of interests of Asperger syndrome children. In the theoretical part, the diagnosis of Asparger syndrome in the context of Autistic specter disorders is being reviewed. Moreover, we define Asperger syndrome compared with other Autistic specter disorders and present methods of diagnosis. The whole study is focused on the area of the family of a child with disabilities. The empirici part describes our research, that focuses on defining the specific interests of Asparger syndrome children through analysis and comparsion of these interests.
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Heat exchangers, influence of cycle efficiency
Khůlová, Jitka ; Štěpánová, Lenka (referee) ; Fiedler, Jan (advisor)
The master's thesis deals with district heat exchangers in a thermal steam cycle of combined heat and power plants and with types of condensate cascades in the multilevel heating systems. Calculation of the thermal efficiency of electricity generation is provided for the investigated thermal cycle, which was modified for three different types of cascades. Besides that, a comparison of useful electric power and electricity generation through one year period of working is made. A significant part of the work is devoted to the design of district heat exchangers, including the calculation of thermal power and heat transfer area. Main dimensions are proposed for each exchanger together with a basic drawing.
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|
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|
|
Steam condensing turbine
Štěpánová, Lenka ; Krbek, Jaroslav (referee) ; Fiedler, Jan (advisor)
The aim of this Master’s thesis is to design a steam condensing turbine with three bleeds. First, a heat balance of the steam cycle is calculated, followed by thermodynamic and stress calculation of the turbine blading and design of a gland steam system and drain system. A price proposal is suggested for the given steam turbine. In the end, a design drawing of the steam turbine is constructed.
|
|
|
Interests of children with Asperger's syndrome from the perspective of parents
Štěpánová, Lenka ; Sotáková, Hana (advisor) ; Kucharská, Anna (referee)
Our study conserns the problematics of interests of Asperger syndrome children. In the theoretical part, the diagnosis of Asparger syndrome in the context of Autistic specter disorders is being reviewed. Moreover, we define Asperger syndrome compared with other Autistic specter disorders and present methods of diagnosis. The whole study is focused on the area of the family of a child with disabilities. The empirici part describes our research, that focuses on defining the specific interests of Asparger syndrome children through analysis and comparsion of these interests.
|
|
|
Daily launches steam turbines and their impact on the life of the turbine
Štěpánová, Lenka ; Kracík, Petr (referee) ; Fiedler, Jan (advisor)
This thesis concentrates on the problem of steam turbines, which require daily cycling by reason of an unstable nature of the energy source. The first part focuses on the current trends which have caused still increasing demand for steam turbines designed for every day start-ups. There is a description of the steam turbine start-up procedure and the heat transfer theory thanks to which the list of the critical parts of the steam turbine has been selected and with respect to these critical points has been created the draft of technical measures for the turbine. The thesis is finished with an evaluation of the life of the steam turbine casing as one of the critical parts and with a proposal for a calculation of a start-up time of the steam turbine.
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