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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.
1

Development of a low temperature geothermal organic rankine cycle standard.

Taylor, Leighton John January 2015 (has links)
The growth in renewable electricity generation is forecast to continue as fossil fuel levels decrease and carbon dioxide emissions are penalized. The growth in geothermal is becoming constrained as conventional high-temperature sources are fully exploited. Geothermal can be a cost competitive base load power source. Governments and utilities are looking at the potential of electricity generation from low temperature geothermal resources for future development. This technology, unlike the high and medium temperature, is not mature and there are a number of companies looking at entering the Organic Rankine Cycle (ORC) market. This thesis aims to provide a necessary step for reliable commercial develop this technology by developing the first draft of a low temperature geothermal ORC standard. The standard outlines the critical stages of a geothermal ORC project as the Prospecting stage; Pre-Feasibility stage, Feasibility stage, and the Detailed Design stage. The standard is unlike other standards that are used to design one component; this standard guides the engineers though the various critical steps of the ORC design to correctly assess the geothermal resource and to inform design and investment decisions. The standard provides particular guidance on critical factors in ORC design, primarily the working fluid selection and component selection limitations. Experienced industry engineers have provided advice and insight regarding the critical design points and processes. The draft standard was reviewed by a number of geothermal industry engineers who have worked with large scale, conventional ORCs. They each commented on the standard from their prospective in the industry and gave general feedback was that it is a technically relevant standard that can be used as a potential start point to develop a new standard for the low temperature binary ORC industry. The final draft standard has been submitted to the ISO for consideration. This thesis first sets out the general background on the state of the art and the industry for lowtemperature binary ORC power plants, and provides the review assessment of the standard draft. However, the bulk of the thesis is the standard itself. The standard represents a substantial contribution to the mechanical and thermal systems engineering field.
2

Mateřská škola Český Těšín / Kindergarten Český Těšín

Ćmielová, Iwona January 2016 (has links)
The subject of this master´s thesis is a detailed design documentation of a newly-built kindergarten in Český Těšín. The building is located on flat land, does not have a basement and has two above - ground floors with flat roof. The kindergarten will contain 2 classes for 50 kids in total, kitchen, technical background, facilities for staff and a place for a leisure time activities. The building is made of combined construction system comprising brick walls and reinforced concrete columns and girders. The project will also include the parking lots and pavements.
3

MARISA-MDD: uma abordagem para transforma??es entre modelos orientados a aspectos: dos requisitos ao projeto detalhado

Medeiros, Ana Luisa Ferreira de 09 June 2008 (has links)
Made available in DSpace on 2014-12-17T15:47:47Z (GMT). No. of bitstreams: 1 AnaLFM.pdf: 903790 bytes, checksum: 70d26a43bc5418b76d2ecdc1716d862c (MD5) Previous issue date: 2008-06-09 / Aspect Oriented approaches associated to different activities of the software development process are, in general, independent and their models and artifacts are not aligned and inserted in a coherent process. In the model driven development, the various models and the correspondence between them are rigorously specified. With the integration of aspect oriented software development (DSOA) and model driven development (MDD) it is possible to automatically propagate models from one activity to another, avoiding the loss of information and important decisions established in each activity. This work presents MARISA-MDD, a strategy based on models that integrate aspect-oriented requirements, architecture and detailed design, using the languages AOV-graph, AspectualACME and aSideML, respectively. MARISA-MDD defines, for each activity, representative models (and corresponding metamodels) and a number of transformations between the models of each language. These transformations have been specified and implemented in ATL (Atlas Definition Language), in the Eclipse environment. MARISA-MDD allows the automatic propagation between AOV-graph, AspectualACME, and aSideML models. To validate the proposed approach two case studies, the Health Watcher and the Mobile Media have been used in the MARISA-MDD environment for the automatic generation of AspectualACME and aSideML models, from the AOV-graph model / As abordagens orientadas a aspectos relacionadas a diferentes atividades do processo de desenvolvimento de software s?o, em geral, independentes e os seus modelos e artefatos n?o est?o alinhados ou inseridos em um processo coerente. No desenvolvimento orientado a, modelos, os diversos modelos e a correspond?ncia entre eles s?o especificados com rigor. Com a integra??o do desenvolvimento orientado a aspectos (DSOA) e o desenvolvimento baseado em modelos (MDD) pode-se automaticamente propagar modelos de uma atividade para outra atividade, evitando a perda de informa??es e de decis?es importantes estabelecidas em cada atividade. Este trabalho apresenta MARISA-MDD, uma estrat?gia baseada em modelos que integra as atividades de requisitos, arquitetura e projeto detalhado orientado a aspectos, usando as linguagens AOV-graph, AspectualACME e aSideML, respectivamente. MARISA-MDD define, para cada atividade, modelos representativos (e metamodelos correspondentes) e um conjunto de transforma??es entre os modelos de cada linguagem. Tais transforma??es foram especificadas e implementadas em ATL (Atlas Definition Language), no ambiente Eclipse. MARISA-MDD permite a propaga??o autom?tica entre modelos AOV-graph, AspectualACME e aSideML. Para validar a abordagem proposta dois estudos de caso, o Health Watcher e o Mobile Media foram usados no ambienteMARISA-MDD para gera??o autom?tica dos modelos AspectualACME e aSideML, a partir do modelo AOV-graph
4

Mateřská škola / Day-care center

Svárovský, Petr January 2019 (has links)
The final thesis speaks about design of kindergarten for detailed design. Building is located in Humpolec on the parcel no. 2130/18. Building has three floors and flat roof. In the building is located four classes for kindergarten, logopedics and classroom for english language. Architectonic design is made by using ventilated facade and stone veneer.
5

Våler Church : A Contemporary Experience of Sacred Architecture / Våler kyrka : en samtida upplevelse av sakrala arkitektur

Moattar, Kayrokh January 2012 (has links)
The History of Architecture has been all about religious buildings. With distribution of sources of power and wealth, new paradigms have emerged. Architecture today is about villas, skyscrapers, stadiums, etc. as well as churches. The financial support of the church is not in the same way as in middle ages; neither the way in which they are used. The question of this thesis project is this transformation of an architectural tradition and how it should be adjusted to our time’s conditions.
6

Mateřská škola / Kindergarten

Foltas, Petr January 2015 (has links)
The master’s thesis deals with a detailed design documentation of a newly-built kindergarten. The building will be composed of two double-storey objects with a mono-pitched roof and of one single-storey object with a flat green roof. Rooms in the double-storey objects will serve as classes. The kindergarten will contain 4 classes for 100 kids in total. In the single-storey object will be situated rooms meant for operational purposes. All objects will be realised as masonry buildings without a cellar. The design documentation does include hard stadning and hard landscaping.
7

Asynchronní motor s vnějším rotorem / Induction machine with outer rotor

Chvatík, Štěpán January 2018 (has links)
Induction machine; outer rotor; water pump; thermal network; thermal analysis; optimization; electromagnetic model; finite element method; thermal insulation class

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