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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
61

Využití odpadního tepla z rektifikace / Utilization of waste heat from rectification

Frank, Vojtěch January 2018 (has links)
The purpose of the thesis is to draw up a model of the energy and material balance using technical and technological analysis of the current state of production of waste heat in the process of distillation. Using these results, subsequently evaluate the energy potential of individual streams and propose optimal energy savings using waste heat. Emphasis is placed on the modelling of the process and the various proposed savings options. The result is also an evaluation of the potential of the proposed savings based on the results of the calculation.
62

Kondenzační parní turbína / Condensing steam turbine

Vymětalík, Zbyněk January 2018 (has links)
The topic of this diploma thesis is a condensing steam turbine with one regulated steam extraction. The first part contents design and balance of heat scheme. The heat scheme is the basis for the main part of this work, which is the thermodynamic design of the turbine with reaction blades. At the end, the characteristics of the turbine are created. Drawing of the turbine section is attached to this thesis.
63

Návrh ekologického vytápění rodinného domu / Design of ecological heating of a family house

Kořínek, Vladimír January 2019 (has links)
This diploma thesis deals with the design of ecological heating for a family house. The main objective is to find the most advantageous variant of the heating and water heating system using a heat pump in cooperation with an alternative heating system. Thermal losses are calculated for the selected object, and several heating designs are made based on the calculations. Then the economic return of the designs is calculated.
64

Vliv umístění Al odlitků v peci tepelného zpracování na mechanické vlastnosti / Influence of location of Al castings in a heat treatment furnace on mechanical properties

Toufar, Tomáš January 2019 (has links)
The present Master thesis deals with location of aluminium castings in the heat treatment furnace and its influence on mechanical properties. As testing samples for the experimental part, tensile bars were used; they were cast from the subeutetic silumin AlSi7Mg0,6. These samples were placed in the furnace in the locations where temperatures were calibrated by the furnace supplier. Then, tensile tests were performed to evaluate the resulting mechanical properties of the samples. The experiment was carried out in the foundry of non-ferrous metals, MESIT foundry Ltd., Uherské Hradiště.
65

Energetická rekonstrukce samostatně stojícího rodinného domu / Energy retrofit of a stand-alone house

Stupka, Jaroslav January 2020 (has links)
The aim of the master’s thesis was to design heating, ventilation and cooling systems and to evaluate possibility of using renewable sources in case of a reconstructed two-storey family house. Air to water heat pump and floor system were designed to ensure both heating and cooling supply in the building. A heat recovery ventilation system was proposed. Gains of electrical energy from photovoltaic array were calculated and then possibility of coverage the heat pump consumption was evaluated. The thesis contains required calculations including building heat losses, heat gains, air exchange rates and the dimensioning of all mentioned systems. Technical drawing is also comprised.
66

Posouzení nákladů spojených s vytápěním novostavby energeticky úsporného rodinného domu / Assessment of Costs Associated with Heating a New Energy-Efficient House

Šebelová, Denisa January 2021 (has links)
This diploma thesis addresses the economic assessment of the methods of heating and combinations of technologies for energy saving. The objective of this work is to assess the economical effectiveness of individual types of sources of heating. It is first necessary to established gross requirements of energy for heating, water heating, and other household operations. Based on this information, suitable sources are determined. Alternative energy sources are other aspects for consideration – controlled ventilation with heat recovery, and photovoltaic cells. The aim of the thesis is to identify which combination of those technologies is the most economically effective for the opted house. This work aims to help the investor in decision making about the technological solution of heating and power purchase. The outcome is a complex evaluation of different options for the assessed house.
67

Návrh autonomního topného zdroje / Project of Autonomous Heating Source

Pejcl, Jiří January 2014 (has links)
The diploma thesis deals with design of a suitable heat source for heating and hot water. There are dealt with operational costs of different types of heat sources, which are compared with one another. The next part is the implementation of specific proposal of the heat source - heat pump ground/water with deep wells and measuring system. The last part describes measuring several operating modes of the heat pump.
68

Teplonosná média pro solárně tepelné systémy / Heat transfer fluids for solar thermal systems

Hylský, Josef January 2014 (has links)
This master thesis deals with the basic problems of solar thermal systems, which are using heat transfer medium. At the beginning this thesis describes basic components of the solar system, especially their meaning and attributes. Further in the thesis are mentioned heat transfer liquids for commercial usage which are used in those systems, their basic properties and dependence on temperature. There is described the physical nature of liquid viscosity and also ways how to measure them. The same is for measurement of liquid density and thermal conductivity. At the end was made measurement of dynamic viscosity of heat transfer liquids for commercial usage at different temperatures. In practical part of the thesis were mixed samples of alternative heat transfer mediums. It was measured their thermal and physical attributes, like for example density, dynamic viscosity and coefficient of volumetric expansion. Each measurement was compared and evaluated.
69

KVANTIFIKACE PŘESNOSTI MĚŘENÍ TLAKOVÝCH ZTRÁT PŘI HODNOCENÍ PÓROVITOSTI HLINÍKOVÝCH ODLITKŮ / Quantification of measurement accuracy of the pressure losses at evaluation of aluminium casting porosity

Velehradský, Petr January 2008 (has links)
The diploma thesis deals with a matter of a leak testingo of the Schreiner devices in the company Kovolis Hedvikov a.s. The tested components are the heat exchangers made from alloy of aluminium used for automobiles. Due to the impact of porosity texture created during the components casting there is leaking. The analysis was accomplished to find out the most problematic parts of these components. Subsequently the testing and measuring were performed in order to classify the testing and detect its accuracy. The summary and suggested solutions of how to improve the accuracy of measuring of the aluminium components leaking are presented in the conclusion.
70

Optimalizace dodávky elektřiny, tepla a chladu pro servisní budovu / The optimization of electricity, heat and cold supply for a service building

Komárek, Luboš January 2008 (has links)
This thesis is aimed at the optimization of electricity, heat and cold supply for a service building. The profiles of electricity, heat and cold consumptions for a specific building are incorporated in the case study. The main aim is focused on the qualification of the potential of the incorporation of technologies for energy production and conversion for the building namely the cogeneration and trigeneration technologies.

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