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Use of Waste Water in Nuclear Power Dukovany for Heating
Bohůn, Vojtěch ; Bartošík, Tomáš (referee) ; Mastný, Petr (advisor)
This diploma thesis deals with various ways of energetically advantageous utilization of waste heat produced by industrial technologies. The focus of the diploma thesis is both to provide an overview of different ways and places of origin of waste heat in industrial technologies and of its possible reutilization, to suggest a concrete air heating system using waste heat and to propose a long-distance hot water pipe which supplies hot water pipe system with energy. First, technologies producing waste heat and some ways of regressing of heat in such technologies are theoretically described. Second, the equipment for transferring of heat and for adjustment of thermal energy parameters is described. A special focus is put on water supplies of the Nuclear Power Plant Dukovany and some selected parts of its secondary circuit, which is waste heat collected from. The analysis is supplemented by a calculation of theoretical quantity of waste heat. The aim of the calculation is to determine whether waste heat can be a source of energy for heating. Then, a current system of heating of three selected buildings in the area of the Nuclear Power Plant Dukovany is briefly described. Based on the gained knowledge, a project of air heating with two heat pumps type water – water, a heat receiver preparing warm service water and three recuperative units for preheating of fresh heating air is designed. The selection of main parts of the air heating is amended by a calculation of purchase costs and electric energy consumption. After that, the focus is placed on choice of type of hot water pipe – its trace is stated and an indicative estimation and a thermal-conditions calculation in the hot water pipe are made. The preliminary calculation serves as a source of information for a final project of air heating and calculation of changes of temperatures longwise the hot water pipe. The project contains also a calculation of pressure losses and an analysis of economical questions concerning hot water pipes. In conclusion, the results of project of air heating and hot water pipes are summarized.
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Design of photovoltaic power plant in area Špitálka Brno
Jedlička, Dominik ; Vrtal, Matěj (referee) ; Bohůn, Vojtěch (referee) ; Morávek, Jan (advisor)
The aim of this work is to design a photovoltaic power plant on the roof of the area Špitálka part of company Teplárny Brno. The theoretical part discusses the types of photovoltaic cells, the possibilities of recycling photovoltaic panels, components of photovoltaic systems and the design of the power plant itself. The practical part is followed by the design of the power plant with the use of information gathered in the theoretical part.
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Cooperation of heat pump with passive solar system
Bohůn, Vojtěch ; Králová, Zuzana (referee) ; Mastný, Petr (advisor)
This bachelor thesis deals with alternative energy sources – a solar system and a heat pump. Their operation is energy-advantageous and they can be efficiently connected in one system. The focus of this thesis is firstly to give an overview of kinds, function, properties, constructional elements and usual arrangements of active and passive solar systems and heat pumps in connection with heating of buildings, secondly to suggest a connection of a combined heating system with a heat pump and of a passive solar system and to evaluate it from an energetic and economic point of view. Firstly, a basic theory for calculation of quantity of electrical energy absorbed by a surface is introduced. Then, a categorization and construction of active and passive systems are presented. Hereafter, advantages and disadvantages of single solar systems are described and basic calculation relations for determination of a heat gain and of proportions of passive solar systems are showed. Subsequently, the function of a heat pump is analyzed, the categorization of its kinds according to the relevant criteria is given and its basic functional elements, typical properties and means of possible use are described. On the basis of gained knowledge, conditions of cooperation of a heat pump with a passive solar system are summarized and substantiated. According to these conditions and to the construction of an object, a combined system is designed for, a connection of a system with a heat pump air / water, a heat accumulator and a recuperative unit is constructed. Consequential calculations evaluate energetic needs of an object and heat gains of a passive solar system. They serve as a basis for a concept of heat source and for determination of an energy balance. A total annual heat need is 13914,7 kWh. It was compared with the case when the object was equipped with standard-size windows. The comparison shows that a passive solar system can spare roughly one third of total annual heat consumption. From the measurement on the object is determined, when a passive solar system is able to supply a heat pump with heat. After that, the suggested system is evaluated from an economic point of view: it is compared with other possible heat sources by the method of net present value. It can be said that solid fuel firing and gas firing are economically more advantageous than the use of a heat pump. The reasons are particularly high initial costs and in case of wood firing also its low price. In conclusion, the gained results are summarized.
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Design of photovoltaic power plant in area Špitálka Brno
Jedlička, Dominik ; Vrtal, Matěj (referee) ; Bohůn, Vojtěch (referee) ; Morávek, Jan (advisor)
The aim of this work is to design a photovoltaic power plant on the roof of the area Špitálka part of company Teplárny Brno. The theoretical part discusses the types of photovoltaic cells, the possibilities of recycling photovoltaic panels, components of photovoltaic systems and the design of the power plant itself. The practical part is followed by the design of the power plant with the use of information gathered in the theoretical part.
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Cooperation of heat pump with passive solar system
Bohůn, Vojtěch ; Králová, Zuzana (referee) ; Mastný, Petr (advisor)
This bachelor thesis deals with alternative energy sources – a solar system and a heat pump. Their operation is energy-advantageous and they can be efficiently connected in one system. The focus of this thesis is firstly to give an overview of kinds, function, properties, constructional elements and usual arrangements of active and passive solar systems and heat pumps in connection with heating of buildings, secondly to suggest a connection of a combined heating system with a heat pump and of a passive solar system and to evaluate it from an energetic and economic point of view. Firstly, a basic theory for calculation of quantity of electrical energy absorbed by a surface is introduced. Then, a categorization and construction of active and passive systems are presented. Hereafter, advantages and disadvantages of single solar systems are described and basic calculation relations for determination of a heat gain and of proportions of passive solar systems are showed. Subsequently, the function of a heat pump is analyzed, the categorization of its kinds according to the relevant criteria is given and its basic functional elements, typical properties and means of possible use are described. On the basis of gained knowledge, conditions of cooperation of a heat pump with a passive solar system are summarized and substantiated. According to these conditions and to the construction of an object, a combined system is designed for, a connection of a system with a heat pump air / water, a heat accumulator and a recuperative unit is constructed. Consequential calculations evaluate energetic needs of an object and heat gains of a passive solar system. They serve as a basis for a concept of heat source and for determination of an energy balance. A total annual heat need is 13914,7 kWh. It was compared with the case when the object was equipped with standard-size windows. The comparison shows that a passive solar system can spare roughly one third of total annual heat consumption. From the measurement on the object is determined, when a passive solar system is able to supply a heat pump with heat. After that, the suggested system is evaluated from an economic point of view: it is compared with other possible heat sources by the method of net present value. It can be said that solid fuel firing and gas firing are economically more advantageous than the use of a heat pump. The reasons are particularly high initial costs and in case of wood firing also its low price. In conclusion, the gained results are summarized.
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Use of Waste Water in Nuclear Power Dukovany for Heating
Bohůn, Vojtěch ; Bartošík, Tomáš (referee) ; Mastný, Petr (advisor)
This diploma thesis deals with various ways of energetically advantageous utilization of waste heat produced by industrial technologies. The focus of the diploma thesis is both to provide an overview of different ways and places of origin of waste heat in industrial technologies and of its possible reutilization, to suggest a concrete air heating system using waste heat and to propose a long-distance hot water pipe which supplies hot water pipe system with energy. First, technologies producing waste heat and some ways of regressing of heat in such technologies are theoretically described. Second, the equipment for transferring of heat and for adjustment of thermal energy parameters is described. A special focus is put on water supplies of the Nuclear Power Plant Dukovany and some selected parts of its secondary circuit, which is waste heat collected from. The analysis is supplemented by a calculation of theoretical quantity of waste heat. The aim of the calculation is to determine whether waste heat can be a source of energy for heating. Then, a current system of heating of three selected buildings in the area of the Nuclear Power Plant Dukovany is briefly described. Based on the gained knowledge, a project of air heating with two heat pumps type water – water, a heat receiver preparing warm service water and three recuperative units for preheating of fresh heating air is designed. The selection of main parts of the air heating is amended by a calculation of purchase costs and electric energy consumption. After that, the focus is placed on choice of type of hot water pipe – its trace is stated and an indicative estimation and a thermal-conditions calculation in the hot water pipe are made. The preliminary calculation serves as a source of information for a final project of air heating and calculation of changes of temperatures longwise the hot water pipe. The project contains also a calculation of pressure losses and an analysis of economical questions concerning hot water pipes. In conclusion, the results of project of air heating and hot water pipes are summarized.
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