• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 215
  • 69
  • 42
  • 33
  • 23
  • 13
  • 4
  • 2
  • 2
  • 2
  • 2
  • 2
  • 1
  • 1
  • 1
  • Tagged with
  • 452
  • 452
  • 89
  • 88
  • 67
  • 63
  • 63
  • 46
  • 43
  • 40
  • 35
  • 31
  • 30
  • 29
  • 28
  • 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.
381

Polyfunkční dům / Multifunctional building

Kostečka, Jan January 2020 (has links)
The project documentation, processed in the framework of the diploma thesis, solves the new building of the multifunctional house in Žďár nad Sázavou. The building is made of traditional brick technology of brick fittings, with insulation, ceilings are reinforced concrete monolithic, roof sloping in two variants. Commercial premises are located on the ground floor on the south side. Furthermore, on the floor there are technical facilities for offices and storage space for housing units and offices. On the next floors there are always 3 residential units. The building is located on flat terrain in the rapidly developing part of the city. The building envelope and individu-al structures are designed to the entire object it was as energy- consuming as possible, and do not pump irreparably by nature its natural resources in a larger quantity than necessary.
382

Soubor řadových NED domů pro bydlení - lokalita "vinohrady" ve Vážanech nad Litavou / A set of row attached low energy houses for living in Vážany nad Litavou

Pfleger, Jaroslav January 2013 (has links)
Diploma´s thesis “ A set of row attached low energy houses for living in Vážany nad Litavou ” is elaborated in form of project documentation which includes all requirements of given standards. The object is placed on plat number 1746 in cadastral community Vážany nad Litavou. The character of the object is brick building. The building is covered gabled roof. It is two-floor house with no cellar. There is living room, kitchen, bedroom with it´s own sanitary facility and technical room in the ground floor. There are bedrooms with sanitary facilities in the second floor. The thesis is worked up as a complete implementation building plan.
383

Studium vlivu konstrukčních systémů na energetickou náročnost staveb / Study of the influence of structural systems for the energy performance of buildings

Dus, Tomáš January 2015 (has links)
The theme of the diploma thesis is study the influence of structural systems for the energy performance of buildings. The thesis compares designed and measured values of the energy consumption of selected buildings with different bearing structure materials beside the results from numerical modeling of energy consumption.
384

Low-energy block of apartments / Low-energy block of apartments

Reiter, Michal January 2015 (has links)
Diploma thesis is aimed on solution of project documentation design of a four-storey low-energy block of apartments with a flat roof in the degree of project realization. The object has a collective garage on first floor and no basement. The structure is designed with the emphasis on overall energy saving, which was documented by detailed calculation of the energy performance of the building under Decree No.78 / 2013 Coll. and ČSN 73 0540-2.
385

Návrh otopného systému pro nízkoenergetický rodinný dům / Design of heating system for low-energy family house

Kytýrová, Zdeňka January 2008 (has links)
This diploma thesis deals with the design of a heating system for a "low-energy" house. It is conceived as a low temperature system using a combination of radiators and underfloor heating. The design is supplemented with a calculation of heat loss, a proposal of needed components, a scheme of the system and means of regulation. The second part solves the heat source selection. A solar system with vacuum tubes is used as the primary source. The second one is an electrical water heater located in the accumulation reservoir for the hot domestic water. Necessary calculations for the design of the solar system, together with a scheme and means of regulation, are enclosed in this section.
386

Posouzení ekonomické efektivnosti nízkoenergetického a pasivního domu / Assessment of the economic efficiency of low-energy and passive house

Maixner, Lukáš January 2016 (has links)
The aim of this diploma thesis is to assess the economic efficiency of alow-energy and passive construction. This paper presents problems of lowenergy and passive construction, their individual characteristics, classification, construction materials, evaluation methods and opportunities for economic assessment due to the investment costs of implementation objects. The main practical part focuses on comparing the investment and operating costs for the construction of a standard, low-energy and passive house. Together with this are processed simple labels building. The out come of this diploma thesis is the calculation of returnability increased by the initial investment in the construction of a standard, low-energy and passive house.
387

Aplikace pro ovládání dohledového systému v obytných vozech / Application for Controll System in Caravan

Řehulka, Marek January 2015 (has links)
This Master's thesis deals with the development of a mobile application for a control of the supervisory system in caravans and motorhomes. The thesis presents the currently available principles and research of the existing solutions. This custom solution includes an Android application and a desktop application of the central unit simulator of the supervisory system. The simulator is based on the Node.js and node-webkit technologies. The simulator communicates with the devices available via RF Transciever and it simulates other devices. The mobile application communicates with the simulator via Bluetooth Low Energy and GSM. Major part of the implementation description is devoted to the Bluetooth Low Energy technology and to issues, which are associated with it. The resulting solution puts emphasis on the usability of the user interface and the ability to supervise a wide range of connected devices. The system also implements custom logic alerts for tracked events. The thesis concludes with evaluation of the resulting system and outlining the future development options.
388

Smart City objekty a jejich oceňování / Smart City Buildings and their Valuation

Uheríková, Eliška January 2017 (has links)
The diploma thesis focuses on specification of standard type buildings and Smart City buildings differences. Thesis also contain a history part of individual buildings category, including their specification. The aim of thesis is to determine designs for changes of building valuation in Smart City standard. Theoretical part contains basic definition and limitation of terms from civil engineering branch and structural types, summary of historical development of houses and evaluation by cost method, most common used experience. Practical part is focused on calculation. According real houses cost of three detached houses in Smart standard, there are calculated new price ratio which enter into cost method valuation. Their effectiveness is verified together with newly design adaptation of cost method valuation on next five detached houses in Smart standard.
389

A Study of Smart Ventilation System for Maintaining Healthy Living by Optimal Energy Consumption : A case study on Dalarnas Villa

Arshad, Fasiha January 2020 (has links)
Indoor air quality is a measure of clean air with comfort conditions and depiction of lower concentration of air pollutants. It is tedious task to achieve all quality measures at a time with smart energy consumption. This research aims to come up with a solution of how to improve smart ventilation system in order to get clean indoor air with less consumption of electric energy. Many studies showed that scheduled ventilation system has proven to be a good solution to this problem. For this purpose, a long-term sensor data of smart ventilation system Renson healthbox and Luvians data is studied which is operated in Dalarnas villa. This research investigates how this system works in two modes and to improve it by customized scheduling.A regression model is constructed in which the relationship between airflow and CO2 is shown. For this purpose, correlation analysis is used in which the connection of bonds between each data features are analyzed. After the feature selection, as a result from correlation matrix, regression analysis is used to find out whether the selected features are linearly related or not. Regression analysis also used for the intent to quantify a model to estimate the flowrate and CO2. A mathematical model is also build to simulate the flowrate and CO2 with energy consumption.The results showed that, in order to provide better indoor air quality with efficient energy consumption, a necessary modification of the fan schedule should be done in a way that fan must be started little bit earlier to avoid harmful particles reach their upper threshold limits. This can result in reduction of fan’s maximum speed hence consumption of less energy is achieved.
390

Smart mätning av volymnivåer i containers / Smart measurement of volume levels in containers

Andersson, Kristoffer, Elertsson, Jakob January 2015 (has links)
Environmental change is a fact in today’s society. Temperatures are increasing around the world. A reason for this is thought to be an increase in emissions of carbon dioxide and other hazardous substances.To reduce the load on the environment, it is important that each and every one of us works towards a greener planet. A simple and effective way to reduce the strain on the planet is by recycling. In this project, we have designed a product that will facilitate and streamline recycling.The product uses the microcontroller ATMega328P, whose task is to measure and inform about filling levels in recycling containers with the help of ultrasonic sensors. This data will then be transmitted with GPRS for further processing.The product has a transmitter and a receiver part. The transmitter part amplifies a PWM signal before it is transmitted. The ultrasonic waves reflect against an object before it gets picked up by the receiver part. The receiver part filters and amplifies the reflected signal which is then used to calculate the distance to the object. To make sure that it is the correct distance, the outdoor temperature is used for the calculations.It is a battery-powered product that is designed to withstand extreme temperatures and have a long battery life without allowing the price to be too high. The product is small, compact and discrete product because everything but the GPRS module sits on a 5x5 cm printed circuit board. The product is also cheap. The most expensive parts are the batteries. By making them easily exchangeable it allows for cheaper batteries to be used and therefore also makes the product as a whole cheaper.Through measurements of the needed data the product can streamline the logistics and management of recycling. The users of the product can through this gain an economical and environmental profit.KeywordsUltrasonic, sensor, low energy, battery, microcontroller, transistor amplifier, PCB, GPRS, sustainability, M2M, Internet of things. / Miljöförändringar är ett faktum i dagens samhälle. Det sker temperaturökningar runt om i världen. En anledning tros vara ett ökat utsläpp av koldioxid och andra miljöfarliga ämnen i naturen.För att minska belastningen på miljön är det viktigt att varje individ arbetar mot en grönare planet. Ett enkelt sätt att minska belastningen på planeten är genom att återvinna. I detta projekt har vi konstruerat en produkt som ska underlätta och effektivisera återvinning.Produkten använder mikrokontrollern ATMega328P, vars uppgift är att mäta och informera om fyllnadsnivåer i behållare med hjälp av ultraljudsensorer. Denna data sänds sedan ut med en GPRS-enhet för vidare behandling.I produkten finns en sändardel som förstärker en PWM-signal innan den sänds ut från produkten. Ultraljudsvågen reflekteras mot ett föremål och mottas sedan av mottagardelen i produkten, som sedan filtrerar och förstärker den reflekterade signalen. Produkten kan sedan beräkna avståndet till föremål genom en mätning och kalkylering av temperaturen på omgivningen och data från ultraljudsmätningen.Produkten är batteridriven och är anpassad för att tåla extrema temperaturer samt ha en lång batterilivslängd utan att priset rinner iväg. Produkten är liten, kompakt och diskret eftersom allt utom GPRS-modulen sitter på ett 5x5 cm kretskort. Produkten är också billig. Batterierna är de dyraste på produkten. Genom att göra batterierna utbytbara tillåter det för användande av billigare batterier, vilket också gör att produkten som helhet sjunker i pris.De noggranna mätningarna kan genom data som samlats in och distribuerats, effektivisera logistiken och hantering kring återvinning. Användarna av produkten kan genom detta tillhandahålla en ekonomisk och en miljömässig vinst.

Page generated in 0.0307 seconds