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Influence of insulation of a house in Slavice on expenses related to the operation of the property
Pokorná, Jana ; Čech, Josef (referee) ; Nykodýmová, Veronika (advisor)
This master´s thesis deals with insulation of the house and it's costs. First part describes the energy performance of building, different methods of thermal insulation and types of thermal isolation. This thesis evaluates the influence of thermal insulation of residential building design for expenses associated with operating the property. This thesis uncludes thermal technical assessment of the condition of the house and then heat the assessment of the options for the thermal insulation on its economic return. In conclusion, the assessment of individual variants insulation is calculated as a simple payback period and the effect on price of this house.
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Contribution to the construction of cost and energy efficient family houses
Čech, Josef ; Mohelníková, Jitka (referee) ; Gašparik,, Jozef (referee) ; MBA, Pavel Slováček, (referee) ; Hrazdil, Václav (advisor)
Dissertation focuses on the verification of construction family houses made of concrete shell block with internal thermal insulation system. The construction technology is transferred to the Czech Republic from France. The work focuses on building envelope. The suitability of implementation is assessed on the basis of verification selected thermal technical requirements placed on building envelope. Requirements are specified by legislation in force in the ČR. The verification was performed by using software simulations and measurements on realized buildings. Critical areas of construction technology were identified on the basis software simulations and measurements on site. It was suggested solution, in which critical areas comply the thermal technical requirements. The building envelope was checked also using the thermography imaging on site. Continuous measurement of interior temperature was used to evaluate thermal comfort in the room. In the completed buildings was tested airtightness of the building envelope, which revealed other critical areas of the building envelope. Critical areas are necessary to solve with sufficient care. The economic cost of implementing each variants of exterior walls made of concrete shell block with internal thermal insulation were compared with the economic costs of implementing external walls made of burnt clay hollow blocks and made of burnt clay hollow blocks with external thermal insulation system ETICS. Subsequently, the economic return was calculated for individual variants of external walls made of concrete shell blocks with internal thermal insulation. From the environmental viewpoint was made comparison of production greenhouse gas CO2 and SO2 (cause acid rains) during the life cycle of the individual variations of exterior walls made of concrete shell blocks with system of internal thermal insulation, exterior walls made of burnt clay hollow blocks and burnt clay hollow blocks with external thermal insulation syst
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Mg-alloy die-castings - trends in industrial
Svoboda, Rostislav ; Juřička, Ivo (referee) ; Čech, Jaroslav (advisor)
The aim of this thesis is to determine influence of porosity and shape-factor over mechanical properties, performed on cast samples from Aalen foundry (Germany), that were high pressure die casted from AZ91 D Alloy. Evaluation of these quantities was done using computer software Olympus Five. Measured values were subjected to statistical analysis in order to eliminate gross errors and determine linear dependence between mechanical properties and porosity eventually voids shape factor.
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Steam boiler with grate firing , burning coal or wood biomas 200 t/ h, 9,3 MPa 520°C
Čech, Jaroslav ; Hudeček, Mirko (referee) ; Skála, Zdeněk (advisor)
The aim of the work is the design of a grate boiler of 200 t . h-1 output, which will burn brown coal or wood chips. The work is divided into several parts. First, stoichiometric calculation and the calculations enthalpy of flue gases and air are performed. After calculating the heat balance and loss of the boiler was counted boiler efficiency. The design of individual heating surfaces is proposed and at the end are controlled the overall heat balance of the boiler. The calculation is supplemented by drawings.
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Segregation during solidification in austenitic-ferritic stainless steels
Kejha, Richard ; Čech, Jan (referee) ; Pernica, Vítězslav (advisor)
The master thesis deals with processes of segregation in austenitic-ferritic stainless steels. The introductory part consists of characteristics features of austenitic-ferritic steels and theoretical analysis of segregation processes. The second part shows practical measurements of segregation in experimental casting. Macrosegregation was measured on a spectrometric analyzer and simultaneously solved in the simulation program MAGMA. The aim of this thesis is to verify the effect of solidification time and dwell time between liquidus and solidus temperature on the chemical heterogeneity of duplex stainless steel casting of about 500 [mm]. Chemical heterogeneity was solved for selected alloying and accompanying elements such as C, Mo, Ni, Mn, Cr. The microsegregation was not addressed. Comparison of the mechanical properties of cast and heat treated duplex steel was done by tensile testing of samples cut from the center of the casting.
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Assessment of the Possibility of Renovation and New Construction of a Kindergarten in Blažovice
Čtvrtečková, Ludmila ; Doležalová, Monika (referee) ; Čech, Josef (advisor)
The master´s thesis deals with the determination and assessment of the complete costs of reconstruction and renovation of kindergarten in the village Blažovice, located in Brno – venkov, in the South Moravian Region. Two options were chosen to assess the complete costs. The first option contains the condition of preserving the existing building with subsequent reconstruction or modernization of the building to such an extent that the building can continue to be used for the operation of the kindergarten. The costs of reconstruction are determined using the itemized budget compiled according to the project documentation of the actual state. The second option contains the demolition and the construction of a completely new building of kindergarten. In the second option, budgets are implemented by using budget indicators combined with an itemized budget. In the end, the results of the mentioned variants are evaluated.
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The Influence of Thermal Insulation of Terraced Houses on the Operation-Related Expenses
Polický, Robin ; Klika, Pavel (referee) ; Čech, Josef (advisor)
The diploma thesis examines the influence of insulation of terraced houses on the expenses associated with their operation. Its first part deals with legislation concerning the issue and evaluation of energy performance of buildings. Furthermore, the types and properties of the used thermal insulation, methods of thermal insulation, types of filling of openings and then the used methods of budgeting are described. The second part contains several variants of insulation of terraced houses, which are assessed in terms of energy intensity and finally in terms of economic return on investment in insulation.
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Determining the Amount of Indemnity in a Holiday House Damaged by a Fallen Tree in Horní Loučky
Somogyi, Vanessa ; Duchaň, Jiří (referee) ; Čech, Josef (advisor)
Subject of master’s thesis is determination of the amount of insurance benefits in a holiday house damaged by a fallen tree due to gale in Horní Loučky. The introductory part focuses on property valuation theory. It includes basic conecepts, legislation of property valuation and methods of valuation. Inseparable part of thesis is to outline the field of insurance and it´s procedures. Following part of master’s thesis contain own solution of this problematics. It determines default price of property valued, relative to three different time events. Default price is taken into account of building established by the analytical method. The determination of insurance benefits will be based on the itemized budget of the delivery and montage of newly replaced building construction. In part of analysing achieved results, we examine the impact of repairs made after damage on the value of the holiday house.
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Cost Valuation of Buildings from Various Material Bases
Zemánek, Jaroslav ; Čech, Josef (referee) ; Hrdlička, Tomáš (advisor)
The topic of this thesis is comparing of two houses made out of tree different materials. Each variants are valuated by cost method – detailed itemized budget, budgetary index and estimation according to Decree 441/2013 Coll. The objective of this thesis is comparing of used construction materials, its advantages and disadvantages and its effect on the initial costs and usage of the building.
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