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Mathematical simulation of temperature profile in the subsoil and creation of a model corresponding its real state
Charvátová, Pavlína ; Katunský,, Dušan (referee) ; Ostrý, Milan (referee) ; Čupr, Karel (advisor)
Increasing demands for low heat losses and energy intensity of a building influence energy calculations. Higher demands are placed on the accuracy of the calculations. An important part of the thermal engineering calculations is the determination of the correct boundary conditions. An important input factor is primarily the indoor and outdoor environment, and temperature is the most important parameter for these types of enviromnent. It is not always the temperature of the external environment, but the environment that is adjacent to the soil or to unheated or differently heated spaces. The possibilities of modeling temperatures below the object are described in the standard ČSN EN ISO 10211. This standard specifies details for a geometric model for the numerical calculation of heat flows to assess the total heat loss of buildings or parts thereof, as well as to derive linear and point heat transfer factors. Furthermore, to calculate minimum surface temperatures to assess the risk of surface condensation and to determine the surface temperature factors. These are two different computational models. Therefore, it would be appropriate to simplify these calculations by simplifying the boundary conditions, namely to conduct an isotherm at a certain level below the terrain, which will be considered as a boundary condition, which is also based on long-term experience with "frost-free" depth. This calculation would be unambiguous, clear and simple.
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Diagnostic research of the family house
David, Jan ; Láník, Jaromír (referee) ; Schmid, Pavel (advisor)
This bachelor’s thesis deals with technical construction research of the family house which is located in 15 Horní Street in Brno. Technical construction research had to be made, due to the change of the owner of the house and to determine the status for possible reconstruction. Research includes description of the methodology of diagnostic work on building and evaluation of research with results and draft measures. The results consider the state of structure and status of its component parts.
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The Apartment house
Kučera, Martin ; Vystrčil, Jan (referee) ; Šuhajda, Karel (advisor)
The aim of the diploma thesis is to design a new apartment house in Vrchlabí. The project has three parts: the architectural and structural part (for building permission), the building services part and the third part dealing with the thermal assessment of two types of foundation. Structural system of the building is a platform frame with joist floor and warm flat roof. The building has two height levels. The main accommodation area is higher than the area with wellness. The building has two floors with different purposes. The ground floor provides wellness centre (sauna, pool with cold water, enjoying shower bath and relaxing zone), massage room and a gym. The second floor comprises four apartments. The heat source are two heat pumps with an auxiliary gas boiler. The building is mechanically ventilated with recovery system. 30 solar thermal collectors installed on the flat roof cover 49 % of energy needed for domestic hot water heating. The heat sources are designed in such a way, that each one of them (heat pumps/gas boiler) can cover the heating energy demand, but only the apartment section will be in operation. If sources work simultaneously for both sections, they are not oversized. The third part of the thesis assesses thermal parameters of two assembly details of foundations of the building – a traditional foundation strips and a foundation slab on foam glass. The foundation on foam glass would work slightly better in terms of surface temperatures, but it´s more demanding on implementation. That's why I chose the foundation strips.
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Mathematical simulation of temperature profile in the subsoil and creation of a model corresponding its real state
Charvátová, Pavlína ; Katunský,, Dušan (referee) ; Ostrý, Milan (referee) ; Čupr, Karel (advisor)
Increasing demands for low heat losses and energy intensity of a building influence energy calculations. Higher demands are placed on the accuracy of the calculations. An important part of the thermal engineering calculations is the determination of the correct boundary conditions. An important input factor is primarily the indoor and outdoor environment, and temperature is the most important parameter for these types of enviromnent. It is not always the temperature of the external environment, but the environment that is adjacent to the soil or to unheated or differently heated spaces. The possibilities of modeling temperatures below the object are described in the standard ČSN EN ISO 10211. This standard specifies details for a geometric model for the numerical calculation of heat flows to assess the total heat loss of buildings or parts thereof, as well as to derive linear and point heat transfer factors. Furthermore, to calculate minimum surface temperatures to assess the risk of surface condensation and to determine the surface temperature factors. These are two different computational models. Therefore, it would be appropriate to simplify these calculations by simplifying the boundary conditions, namely to conduct an isotherm at a certain level below the terrain, which will be considered as a boundary condition, which is also based on long-term experience with "frost-free" depth. This calculation would be unambiguous, clear and simple.
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Diagnostic research of the family house
David, Jan ; Láník, Jaromír (referee) ; Schmid, Pavel (advisor)
This bachelor’s thesis deals with technical construction research of the family house which is located in 15 Horní Street in Brno. Technical construction research had to be made, due to the change of the owner of the house and to determine the status for possible reconstruction. Research includes description of the methodology of diagnostic work on building and evaluation of research with results and draft measures. The results consider the state of structure and status of its component parts.
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