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Numerical Analysis of Crawl Spaces Airflow
Pobucká, Slávka ; Kučírek, Pavel ; Šuhajda, Karel ; Vorlíčková, Petra ; Žajdlík, Tomáš
Unlike Central Europe (specifically the Czech Republic), where crawl spaces are not very common, their use is traditional in Nordic countries. However, due to the microclimate within crawl spaces, summertime can be problematic. The relative humidity within a crawl space can reach values of up to 95% [1]. Various factors, including airflow, influence the microclimate of crawl spaces.
This paper focuses on simulating airflow and air age in a naturally ventilated soil space in the Czech Republic using OpenFOAM software. The study involves monitoring internal airflow, surface temperature of the crawl space floor and ceiling structure, as well as air humidity and temperature.
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Validation of Selected Software in Terms of Air Age Simulation
Kučírek, Pavel ; Šikula, Ondřej
The paper pertains to the assessment of indoor air quality in terms of its air age in a ventilated space. It involves a comparison of Computational Fluid Dynamics (hereinafter CFD) simulation software and their validation by an experiment carried out in a test chamber. A total of 14 cases were simulated and compared using the software: OpenFOAM, Blue CFD-AIR, DesignBuilder, and Ansys. The aim is to evaluate the accuracy and usability of the software by comparing selected computational domains and meshes. The results obtained show that the assessed software achieves satisfactory accuracy for air velocities and air ages. Models with simplified inlet geometry and half-domain offer the best balance between accuracy and computational effort.
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Air conditioning of the cinema
Kučírek, Pavel ; Jelínek, Ondřej (referee) ; Blasinski, Petr (advisor)
The topic of this bachelor’s thesis is design of three air conditioner units for cinema with technical utility rooms, base for workers and gallery. The devices are designed to meet the operating, hygienic and functional requirements for internal microclimate. The main role of air conditioning devices is air supplying for visitors in sufficient amount, eliminating thermal loads in summer, covering thermal losses and humidification during winter. The theoretical part is focused on internal microclimate.
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Apartment Building
Sedláček, Daniel ; Kučírek, Pavel (referee) ; Struhala, Karel (advisor)
The subject of bacherol´s thesis is an apartment house located in Hlučín town. Designed building consist of five floors, any cellar, with flat roof. The structural systém of a building is designed and constructed by POROTHERM systém. All designed constructions are in compilance with the applicable standards ČSN.
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Energy efficient building of cinema and gallery
Kučírek, Pavel ; Jelínek, Ondřej (referee) ; Blasinski, Petr (advisor)
The aim of the master project is to design a new building of the cinema with gallery and to design technical equipment. The building is „L“ shaped, the half of the building is single-storey and the other half is two-storey, there is no basement. The most important rooms are on the ground floor – gallery, cinema, foyer and staff rooms. On the second floor there is projector room, sound engineer room, recording room and other sound adjusting rooms. The vertical loadbearing and non-loadbearing walls are designed from aerated concrete blocks, horizontal structure are cast-in-place reinforced slabs, the roof is flat. There is a reinforced concrete staircase that leads to the second floor, the building is insulated by ETICS. There are 4 HVAC units designed in the building, units are controlled with monitoring and controlling unit, also there are photovoltaics and rainwater storage systems designed. The project and visualizations were made in the ArchiCAD, MS excel, DEK, Halton HIT, AeroCAD software. Experiment validates measured data with mathematical analytics model that I used in 7 theoretical models of ventilator controlling possibilities to achieve energy savings. Re-sults will be compared and assessed.
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Apartment building R7
Svitálková, Tereza ; Kučírek, Pavel (referee) ; Brzoň, Roman (advisor)
The aim of the bachelor's thesis was to design and after that to develop a project documentation for a new apartment building R7. The apartment house is located on a plot in Praha – Karlín, Rohasnké nábřeží. The building is designed as a free-standing building with three aboveground floors and one basement. The floor plan of the basement reminds rectangle. There are cellars, garage, and technical facilities in the basemant. On the upper floors there are fifteen aparment units, five units on each upper floor. All apartments on ground floor have its own terrace; apartments on the sedond and the third floor have balconies. The apartment building is based on reinforced concrete foundation slab. The structural system of the basement is also made of reinforced conctrete and is consisted of colomns, beams and walls. The whole envelope of the underground is made from underground waterproofing system – a white tank. The external and internal load-bearing masonry of the upper floors is made of ceramic blocks. The ceiling structure with the balconies is made of reinforced concrete floor slab. The staircase is prefabricated. An elevator is located next to the arms of the staircase. The roof of the aparment building R7 is flat and partly walkable. The exterior building´s envelope is insulated with the ETICS contact thermal insulation system.
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Apartment Building
Vrbický, Jan ; Kučírek, Pavel (referee) ; Struhala, Karel (advisor)
The aim of this bachelor’s thesis is to process project documentation for realization of new apartment building as a nearly zero-energy building in the city of Brno in the cadastre unit Líšeň. The apartment building is a two-storey with a basement in a sloppy terrain. It’s a rectangular shaped building and it has character of a terraced house. On both above-ground floors is an entrance area and 3 residential units. There are 6 residential units in the whole building. In the basement is a vault for every residential unit, utility room, bicycle room, cleaning room, WC, storage, and a gaming room. The basement is also linked to a garage with 6 parking places under the building. The garage is completely open from one side, and it is linked to an exterior parking lot with another 7 parking places. The vertical load bearing system in the above ground floors is made of sand-lime blocks, as well as non-load bearing walls in the above ground floors. Peripheral walls in the basement are made of a concrete permanent formwork and a monolithic reinforced concrete. The horizontal load bearing ceiling structures are made of reinforced concrete slabs. Foundations are designed as plain concrete strips except for two reinforced concrete blocks under the reinforced concrete columns. The roof is designed as extensive green flat roof. The building is insulated with the contact thermal insulation system ETICS made of façade polystyrene with an external above-ground wall finish made of brick cladding.
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Apartment Building
Slavík, Jiří ; Kučírek, Pavel (referee) ; Struhala, Karel (advisor)
The subject of this bachelor thesis is the elaboration of project documentation for the construction of an apartment building in the village of Chrudim. The apartment building is located in the eastern part of the city, which is intended for housing. The building is a detached three-storey non-basement building that has 6 residential units on the second and third floors. On the ground floor there are technical facilities, cellars, a common clubhouse and 6 garage parking spaces, where one parking space can be used as a space for placing sorted waste. The building is based on a reinforced concrete monolithic slab. The building is insulated by a contact insulation system with mineral wool insulator. The object is based above the free space, the so-called "crawl space", above which a reinforced concrete monolithic slab is made. Other horizontal structures are made up of lightweight slabs with a full cross-section of liaporbeton. The vertical structures consist of ceramic blocks of the THERM type. The structure of the balconies is steel prefabricated, the balconies are hung on the perimeter load-bearing walls and are assessed as self-supporting. Vertical movement in the building is ensured by a reinforced concrete monolithic staircase and an elevator, which is located in a self-supporting reinforced concrete monolithic elevator shaft. The roof structure is single-walled vegetation. The design of the apartment building is carried out with regard to the permissible regulations and the existing surrounding in the solved area. Part of the work is the implementation of diagrams of technical equipment of buildings distribution lines in the building, fire safety assessments and expert opinions from building physics. Construction physics reviews thermal technics, acoustics, lighting and insolation. The following programs were used: AutoCAD 2022, ArchiCAD 23, BuildingDesign, Hluk+, DEKSOFT, MS Word, Excel, PowerPoint, Adobe Acrobat
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Apartment Building
Vrbický, Jan ; Kučírek, Pavel (referee) ; Struhala, Karel (advisor)
The aim of this bachelor’s thesis is to process project documentation for realization of new apartment building as a nearly zero-energy building in the city of Brno in the cadastre unit Líšeň. The apartment building is a two-storey with a basement in a sloppy terrain. It’s a rectangular shaped building and it has character of a terraced house. On both above-ground floors is an entrance area and 3 residential units. There are 6 residential units in the whole building. In the basement is a vault for every residential unit, utility room, bicycle room, cleaning room, WC, storage, and a gaming room. The basement is also linked to a garage with 6 parking places under the building. The garage is completely open from one side, and it is linked to an exterior parking lot with another 7 parking places. The vertical load bearing system in the above ground floors is made of sand-lime blocks, as well as non-load bearing walls in the above ground floors. Peripheral walls in the basement are made of a concrete permanent formwork and a monolithic reinforced concrete. The horizontal load bearing ceiling structures are made of reinforced concrete slabs. Foundations are designed as plain concrete strips except for two reinforced concrete blocks under the reinforced concrete columns. The roof is designed as extensive green flat roof. The building is insulated with the contact thermal insulation system ETICS made of façade polystyrene with an external above-ground wall finish made of brick cladding.
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Apartment building R7
Svitálková, Tereza ; Kučírek, Pavel (referee) ; Brzoň, Roman (advisor)
The aim of the bachelor's thesis was to design and after that to develop a project documentation for a new apartment building R7. The apartment house is located on a plot in Praha – Karlín, Rohasnké nábřeží. The building is designed as a free-standing building with three aboveground floors and one basement. The floor plan of the basement reminds rectangle. There are cellars, garage, and technical facilities in the basemant. On the upper floors there are fifteen aparment units, five units on each upper floor. All apartments on ground floor have its own terrace; apartments on the sedond and the third floor have balconies. The apartment building is based on reinforced concrete foundation slab. The structural system of the basement is also made of reinforced conctrete and is consisted of colomns, beams and walls. The whole envelope of the underground is made from underground waterproofing system – a white tank. The external and internal load-bearing masonry of the upper floors is made of ceramic blocks. The ceiling structure with the balconies is made of reinforced concrete floor slab. The staircase is prefabricated. An elevator is located next to the arms of the staircase. The roof of the aparment building R7 is flat and partly walkable. The exterior building´s envelope is insulated with the ETICS contact thermal insulation system.
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