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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.
81

Tvorba konceptu energeticky soběstačných obytných budov / Formation of the Concept of energy self-sufficient of residential buildings

Hlavsa, Tomáš Unknown Date (has links)
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.
82

Výpočtové hodnocení konstrukčních staviv na energetickou náročnost budovy / Computational assessment of structural building materials in terms of energy performance of the building

Křenek, Daniel January 2018 (has links)
Theme of the diploma thesis is computational assessment of structural building materials in terms of energy performance of the building. The history and types of the objects with low energy performance are described. There are listed elements of constructionally energetic concept with low energy performance and overview of building materials used for their construction. In the practical part a selected building was tested for energy performance by legislation. Then two structural material solutions on selected detached house are compared by using a simulation program.
83

Environmentální porovnání dřevostavby a zděné stavby bytového domu / Environmental assessment of timbered house and brickwork block of flats

Ostrovský, Milan January 2015 (has links)
This thesis is concerned with the evaluation of sustainable construction. It is a multi-criteria evaluation focused on building environmental, socio-cultural sphere, economics and management. The reviews I chose passive apartment house in two of designs. The purpose of this study is to compare the standard insulated brick buildings and in our non-traditional wood construction. At the beginning there will explain the basic concepts associated with the topic. After that, the problems of the sustainable construction and environmental impact assessment, which will describe the basic concepts, methodologies, criteria, description of evaluation. The last part will be made an example of evaluation SBToolCZ brick and wooden buildings passive residential Duma. Comparison of both results achieved certification and think about the advantages or disadvantages of both options. The aim of this thesis is dedicated readers and explain to them the issues of this topic.
84

Otopné soustavy v domech s nízkou potřebou tepla pro vytápění / Heating systems in buildings with low energy consumption for heating

Juráček, Martin January 2015 (has links)
This work is processed like a proposal of heating for a part of seminar centre in Hostětín names Veronika. This current object is built in passive standard. In a part of building there is heating which it is suggested with help by singletube heating system. There is intake of air by recuperator without heating or cooling of air. Heat source is boiler room functional on renewable. Target of this work is analyze of current singletube heating system and find out cause it´s incompletely functionality. Further, design a new heating system which it suppose to be singletube and doubletube heating system.
85

Teplovzdušný vytápěcí a větrací systém pro nízkoenergetický rodinný dům / Warm-air heating and ventilating system for low-energy family house

Musil, Zdeněk January 2012 (has links)
The diploma thesis deals with warm-air heating and ventilation system of energyefficient family house. The part of thesis is theoretical introduction to low-energy and passive houses, ventilation and heating. The proposal itself is based on the applicable standards and includes all progressive steps, including the calculation of the thermal performance and sizing individual parts of the system. The drawing project documentation is listed in appendixes.
86

Klimatförändringens påverkan på inomhusklimatet och energibehovet i småhus / The impact of climate change on the indoor climate and energy demand in one- to two-family houses

Källberg, Magnus, Bertilsson, Rikard January 2020 (has links)
Småhus byggs allt tätare och mer välisolerade för att klara de nationella målen på energieffektivisering samtidigt som klimatet beräknas bli varmare som följd av klimatförändringarna. Ett dåligt inomhusklimat kan leda till hälsoproblem och ökad dödlighet. Denna studie har som syfte att åskådliggöra hur inomhusklimatet med fokus på temperatur påverkas av klimatförändringarna i samband med val av olika byggnadstekniska lösningar för ett småhus. Studien bygger på simuleringar i programmet VIP-Energy för olika versioner av ett småhus placerat i Växjö i södra Sverige. Temperatur och energibehov sammanställdes i samband med olika klimatscenarier, energihushållningsnivåer och byggnadstekniska lösningar. Resultaten visar på att temperaturerna inomhus kan nå extrema nivåer om inte soltransmittansen begränsas och huset kyls med aktiv eller passiv kyla. Problemet förvärras när huset byggs efter striktare krav på energihushållning. / One- to two-family houses are being built to be more airtight and better insulated to meet the national goals for energy efficiency while the climate is getting warmer as a result of climate change. A poor indoor climate can lead to health problems and increased mortality rates. The purpose of this study is to illustrate how the indoor climate with a focus on temperature is affected by climate change in conjunction with the choice of different building technical solutions for a single-family house. The study is based on simulations with the VIP-Energy program for versions of a singlefamily house placed in Växjö in southern Sweden. Temperature and energy requirements were compiled in conjunction with various climate scenarios, building energy efficiency levels and building technology solutions. The results show that indoor temperatures could reach extremely high levels unless the solar transmittance is limited, and the house is cooled with active or passive cooling. The problem is exacerbated when the house is built according to stricter energy regulations.
87

Optimalizace nákladů životního cyklu rodinných domů / Optimization of life cycle costs of family houses

Servusová, Michaela January 2022 (has links)
The theoretical part deals at the beginning with wooden buildings and suitable materials. Then information about low energy houses, passive houses and requirements for new buildings is introduced. The theoretical part of the work also summarizes the selection of the technological solution. Important part is about individual life cycle stages of the building, wear and tear of the buildings and whole life costs of the building that the investor is interested in. Practical part of the thesis consists of a case study of the wooden family house where the whole life costs of the building life cycle are solved.
88

Vliv architektonického konceptu na potřebu tepla na vytápění energeticky úsporných budov pro bydlení. / Impact of the architectural concept on the energy consumption of heating of the energy-saving residential buildings

Křeček, David January 2012 (has links)
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.
89

Vliv vnitřní tepelné akumulace konstrukcí pasivních domů na jejich letní tepelnou stabilitu / The influence of internal thermal storage mass used in passive houses' construction systems on their summer thermal stability

Němeček, Martin January 2018 (has links)
In recent years we may observe a growth in construction of passive houses and low energy houses using lightweight constructions such as modern wooden houses. It is assumed that wooden houses keep overheating more comparing to brick houses during summer period. Due to the lack of research in this field the paper investigates the influence of internal thermal storage mass in passive houses constructions on their summer thermal stability under the Czech climatic conditions. Only sensible heat accumulation without a usage of phase change materials is examined. Differences between wooden houses comparing to brick-built houses are emphasized. Objects of research are mostly residential passive houses in low energy building standards. However, the results of research might be applied to different types of buildings as well. The first section outlines theoretical fundamentals. For the research itself various scientific research methods were used, such as basic mathematical calculations, experimental temperature measurement of two buildings (detached house in Dubňany and in Moravany) and numerical simulations. Own tribute to the research was first of all discussion on the topic of thermal accumulation and structures heat capacity calculation. Experimental measurements outlined conclusive evidence about the importance of internal thermal storage mass in respect of interior summer overheating. The research confirmed that the highest interior temperature reached is mostly influenced by solar gains through unshaded windows. However, the influence of internal thermal storage mass is not remote. If we compare standard timber-framed wooden house to the hole ceramic bricks-built house, the wooden house will overheat by 0,5°C more during a standard day. Wider spread in the maximum temperature reached was measured for lightweight consturctions wooden houses without any internal thermal storage mass. Therefore, such structures should have an additional layer of thermal storage mass.

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