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Impact of the architectural concept on the energy consumption of heating of the energy-saving residential buildings
Křeček, David ; Hudec, Mojmír (referee) ; Vaverka, Jiří (referee) ; Ing.arch.Lorant Krajcsovics,PhD. (referee) ; Chybík, Josef (advisor)
Human efforts to increase their comfort rise in density of population in congested city areas, rapid growth of traffic and electric smog created due to constantly transforming communication technologies all resulted in an increase of stress in the immediate human environment. All of this, along with frequent reports about changes in global climate, gradually contributes to an alteration of thinking of the whole society, which is forced to face the consequences of economic damages caused by climatic changes. If we want to tenably assert adequate economic and social living conditions, we have to approach the natural environment in a more profound way. In accordance with the trend of substantional development for the purpose of enhancement of the quality of the living environment in the field of building industry, it is logical to concentrate on buildings, which are conceptually focused on saving of the energy. That is on energy-efficient houses. Pathway to sustainable building is not based on discovering one or several multipurpose technological solutions, but on usage of new designing principles, new materials and methods of processing them as well as new techniques of construction. For an effective creation of a building concept it is essential to have that kind of device which quickly responds to changes performed on a design, enables an easier work on variants and produces the most accurate results. Consistent application of energy optimizing methods is necessary particularly for designs of energy saving houses. Beginning efficient building design is the most “abstract factor of concept linked with very uncertain inputs,” because a lot of parameters in that moment is still unknown. Many mutually connected factors are invoked during designing passive house e.g. trajectory of the sun and the shielding effect of the surroundings, the aspect of sunlight and interior lighting, power quality construction, etc. Currently, the architect has no choice, he can use only well-known precepts, such as large windows are facing the South not the North. Unfortunately this "empirical formula" for the design of a real passive house is not enough. And yet the first draft of the house is most affected by not only its shape, form, but user´s comfortable, cost, feasibility and future energy behavior of buildings and related operating costs of the house too. It is obvious that this stage should not be underestimated, because “minor variation of the initial inputs greatly influence the outcomes.” With this reasoning, the work focuses on early stage design decision, i.e. the architectural concept of a passive house (an idea, vision). Therefore the aim of this work is to simplify the issue into understandable form, i.e. the creation of relatively simple and illustrative sketches, which generalize the issue satisfactorily, show the individual parameters (glazing, shading, shape, size, etc.) and change need of heat for heating passive house. The results of the work will be useful when the architect picks up the pencil and starts to think about his future house. At this point, he will have on hand sketches, which give him an idea and streamline his further design. Therefore the main goal is to create new outcomes and identify energy behaviour of buildings with a computational tool. This research works with virtual idealized mathematical model in the software PHPP 2007 CZ and uses "phenomenon" of parametric equations and sensitivity analysis.
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Formation of the Concept of energy self-sufficient of residential buildings
Hlavsa, Tomáš ; Horák, Petr (referee) ; Chlup, Jan (referee) ; Meixner, Miloslav (advisor)
Creating the concept of buildings is the primary task of architects, designers in the field of architecture and engineering. Although the basic requirements remain the same across time , possibilities of their solution are constantly evolving and changing. In addition, with the increasing globalization, in context of the housing and the architecture is expected new requirements go beyond the horizons of the interests of bouth investor and designer. Global view of each project and the evaluation of its traces left in our environment and society, although is much discussed but rarely taken into account or even just considered. In this context, we are witnessing the development of new trends of the concepts of buildings, consisting in the use of natural materials, in reducing the environmental burden of a surroundings, in reducing energy demands, or even in an effort to achieve energy independence thus trends, whose common denominator is sustainable construction, hence sustainable development in general. Feasibility of the creation of the concept of energy self-sufficient building doesn´t consist only in the precise solution of the assigned task from the perspective of the designer or investor, but also in finding such a solution which, even with using new trends and principles, will not go against the initial idea itself. The present instrument processed and presented in this dissertation has the ambition to move global view of the project into the perspective of a particular individual design process and in small way contribute to the creation of better projects from the perspective of sustainable development The term of energy self-sufficient buildings are not clearly defined. To work with them it was necessary to determine their basic definition that describes their diverse conceptual variations and allows precisely define the solution area. To correctly select the optimal solution in terms of sustainable development is necessary the assessment and mutual comparison since the beginning. As a basic tool for this assessment was used and partially modified SBTool, which is built on three basic pillars of sustainable development - SOCIAL - ENVIRONMENTAL - ECONOMIC. SBTool tries to determine the degree of left traces of the approach from the perspectives of these three aspects and evaluate the effectiveness of the selected solution. This tool allow to compare the different concepts for the same project among themselves, their parts but also various projects among each other. All of course with regard to the development of various aspects in the time.
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New South District and its Connection to Svratka
Nedbalová, Monika ; Hybská, Bohumila (referee) ; Sedláček, Michal (advisor)
Brno has been considering moving the Main railway station for several decades. Countless urban plans have been done through several competitions, the new South District, which will be located north direction of today's Dolní nádraží station in the future. The architectural study, which was the subject of this diploma thesis, designs multifunctional object called Platform. The building could become part of the emerging South District. The base for the architectural study of the Platform was urban concept of South District designed by me as a pre-diploma thesis. The significance of the South District is comparable to the new Main Railway Station in Vienna surrounded by new district. Those opportunities were the foundation for designing compact urban structure with great variability of public spaces and buildings themselves. The new building is located on the Route of experiences, which is an alternative lane to the main boulevard from the Main Station to the centre of Brno. That starts at the railway station, leads through South District and its main square, the waterfront, through the islands of Svratka, to the park next to the river. Lane continues to the rediscovered railway viaduct and further to today's Main railway station. The viaduct was an inspiration for the architectural design, in the sense of material and shape. The mass of the building itself is divided horizontally into two parts. The lower, heavy masonry brick part of the market is visually separated from the upper objects that seem to levitate above the market. These three upper masses grow from the green roof of the market. Their function is already evident due to their facades. Upper part belongs to the two apartment buildings with a regular grid of south-west orientated windows and one coworking facility located in the northern corner of the Platform. The location of the building is significant. The views from the Platform are amazing - one side there is the Svratka River with island
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Cost analysis of passive houses and houses with zero energy demand
Gregovská, Kateřina ; Aigel, Petr (referee) ; Výskala, Miloslav (advisor)
The bachelor's thesis deals with the envelope structures of an existing family house, which is in a passive standard. The constructions being compared are therefore peripheral, floor and roof. The subject of this work is whether the proposed structure composition is effective, both in terms of heat transfer coefficient and in construction costs and speed. Alternatively, find a better possible variant of thermal insulation for already designed compositions of envelope structures. The work therefore compares different types and thicknesses of thermal insulation. The values of heat transfer coefficient, cost intensity and time intensity were used for comparison.
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Economic Assessment of the Construction of Passive and Active Houses
Ondra, Filip ; Komosná, Milada (referee) ; Hrdlička, Tomáš (advisor)
This diploma thesis examines the economics of use of technologies linked with low-energy, passive, and active house construction which is presently very often a topic of interest. The goal of the thesis is to evaluate economic effectivity of additional investment into construction materials leading to reduction of heating requirements of the evaluated family house. Furthermore, economics of the use of advanced technologies of ventilation, different heat sources and photovoltaic power plant are assessed. The result is a complex evaluation of different alternatives of the house which makes this thesis helpful in answering the question whether these additional investments will pay off.
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Autonomous power system
Královský, Jaroslav ; Brázdil, Marian (referee) ; Pospíšil, Jiří (advisor)
This diploma thesis deals with available technologies when designing autonomous house. Theoretical part of this thesis shows and presents options for gaining energy from renewable resources and options for energy storage. The practical part of the thesis is focused on designing partly autonomous system for model house using renewable resources. In the thesis are three options of gainig energy for the house, from which is chosen the best option.
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Non-standard family house
Wiesner, Jakub ; Jelínek, Petr (referee) ; Rusinová, Marie (advisor)
Aim of the thesis was to design Non-standard family house and work out documentation for construction realization. Designed building is two-storey family house for permanent residence of 4-6 persons with floor area 224m2. Non-standard solution is design of passive timber structure founded on reinforced concrete slab lying on thermal insulation pillow formed by foam glass. Using of natural materials as far as possible and creation of healthy inner micro-climate is very Non-standard too. The buiding has also very non-standard shape with combination of oblique and planar walls. Thesis itself consists of 2 main parts. First part is description of construction in technical report. Second part is main project documentation including calculations.
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Assessment of the economic efficiency of a passive house
Mašková, Pavla ; Comorek,, Martin (referee) ; Kocourková, Gabriela (advisor)
The Master thesis is focused on rating the specifics of passive houses and assessment whether the energy savings in the operation of passive house will cover the increased cost of construction. The theoretical part deals with the history and development of passive houses, application of natural materials, sustainable resources of energy and indicators for the evaluation of economic efficiency. The practical part describes passive and standard house. On the standard house, there is processed financial plan. Reference objects are compared, followed by evaluation of the return on the additional costs of the passive house.
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