Made available in DSpace on 2014-12-17T13:57:01Z (GMT). No. of bitstreams: 1 RodrigoPO_DISSERT_1-86.pdf: 4545112 bytes, checksum: 1469a5c4c25aa35695d699dad3987af5 (MD5) Previous issue date: 2010-03-26 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico / This Masters Degree dissertation seeks to make a comparative study of internal air temperature data, simulated through the thermal computer application DesignBuilder 1.2, and data registered in loco through HOBO? Temp Data Logger, in a Social Housing Prototype (HIS), located at the Central Campus of the Federal University of Rio Grande do Norte UFRN. The prototype was designed and built seeking strategies of thermal comfort recommended for the local climate where the study was carried out, and built with panels of cellular concrete by Construtora DoisA, a collaborator of research project REPESC Rede de Pesquisa em Efici?ncia Energ?tica de Sistemas Construtivos (Research Network on Energy Efficiency of Construction Systems), an integral part of Habitare program. The methodology employed carefully examined the problem, reviewed the bibliography, analyzing the major aspects related to computer simulations for thermal performance of buildings, such as climate characterization of the region under study and users thermal comfort demands. The DesignBuilder 1.2 computer application was used as a simulation tool, and theoretical alterations were carried out in the prototype, then they were compared with the parameters of thermal comfort adopted, based on the area s current technical literature. Analyses of the comparative studies were performed through graphical outputs for a better understanding of air temperature amplitudes and thermal comfort conditions. The data used for the characterization of external air temperature were obtained from the Test Reference Year (TRY), defined for the study area (Natal-RN). Thus the author also performed comparative studies for TRY data registered in the years 2006, 2007 and 2008, at weather station Davis Precision Station, located at the Instituto Nacional de Pesquisas Espaciais INPE-CRN (National Institute of Space Research), in a neighboring area of UFRN s Central Campus. The conclusions observed from the comparative studies performed among computer simulations, and the local records obtained from the studied prototype, point out that the simulations performed in naturally ventilated buildings is quite a complex task, due to the applications limitations, mainly owed to the complexity of air flow phenomena, the influence of comfort conditions in the surrounding areas and climate records. Lastly, regarding the use of the application DesignBuilder 1.2 in the present study, one may conclude that it is a good tool for computer simulations. However, it needs some adjustments to improve reliability in its use. There is a need for continued research, considering the dedication of users to the prototype, as well as the thermal charges of the equipment, in order to check sensitivity / A presente disserta??o de mestrado teve como objetivo estudar comparativamente os dados das temperaturas do ar internas simuladas atrav?s de um aplicativo computacional de simula??o t?rmica, o DesignBuilder 1.2, e os dados registrados in loco atrav?s do HOBO? Temp Data Logger, em prot?tipo de Habita??o de Interesse Social (HIS), localizado no Campus Central da Universidade Federal do Rio Grande do Norte UFRN. O referido prot?tipo foi projetado e constru?do buscando estrat?gias de conforto t?rmico recomendadas para o clima do local de estudo, e constru?do com pain?is de concreto celular pela Construtora DoisA, interventora do projeto de pesquisa REPESC Rede de Pesquisa em Efici?ncia Energ?tica de Sistemas Construtivos, integrante do programa Habitare. A metodologia utilizada partiu da problem?tica, realizando uma revis?o bibliogr?fica, que levantou os principais aspectos relacionados ?s simula??es computacionais de desempenho t?rmico de edifica??es, como a caracteriza??o clim?tica da regi?o objeto de estudo e ?s exig?ncias de conforto t?rmico de usu?rios. O aplicativo computacional DesignBuilder 1.2 foi o utilizado como ferramenta de simula??o, realizando altera??es te?ricas no prot?tipo e comparando-os com os par?metros de conforto t?rmico adotados, com base na literatura t?cnica atual da ?rea. As an?lises dos resultados dos estudos comparativos foram realizadas atrav?s de sa?das gr?ficas para a compreens?o das amplitudes de temperatura do ar e situa??es de conforto t?rmico. Os dados utilizados para a caracteriza??o da temperatura do ar externa foi o Test Reference Year (TRY), definidos para a regi?o de estudo (Natal-RN). Neste sentido, tamb?m foram realizados estudos comparativos do TRY com os dados registrados nos anos 2006, 2007 e 2008, na esta??o clim?tica Davis Precision Station, localizada no Instituto Nacional de Pesquisas Espaciais INPE-CRN, em terreno cont?guo ao Campus Central da UFRN. Dos estudos comparativos entre as simula??es computacionais e os registros in loco realizados no prot?tipo objeto de estudo, conclui-se que simula??es em edifica??es naturalmente ventiladas ? uma tarefa complexa devido ?s limita??es dos aplicativos, principalmente devido ? complexidade do fen?meno de escoamento do ar, da influ?ncia das condi??es de contorno da ?rea e dos registros clim?ticos. Por fim, quanto ? utiliza??o do aplicativo DesignBuilder 1.2 no presente estudo, pode-se definir como uma boa ferramenta de simula??o computacional. Todavia, h? necessidade de alguns ajustes para maior confiabilidade na sua utiliza??o, tendo a necessidade de continua??o da pesquisa considerando a ocupa??o de usu?rios no prot?tipo, bem como as cargas t?rmicas de equipamentos, no sentido de aferi??o de sua sensibilidade

The diploma thesis deals with the behavior of technical systems of the student dormitory in Brno. The temperature and humidity climate was measured and evaluated in the building. The measurement is then compared with the computer simulation created in DesignBuilder. The geometric model of the building was created in Revit, which supports BIM technology. Based on the evaluation of the experiment, the optimization of the technical systems in the building was proposed.

Estágio realizado na Energyband - Novas Energias e orientado pela Eng. Marta Fidalgo / Tese de mestrado integrado. Engenharia Electrotécnica e de Computadores. Área de Especialização de Energia. Faculdade de Engenharia. Universidade do Porto. 2012

The diploma thesis with research of efficiency of renewable and low-potential energy sources of buildings. It is available on numerical simulations for sharing office and heating and cooling system buildings in DesignBuilder. There are various energy sources and ways of controlling heating and cooling. The results are evaluated in terms of time, after the expected compromises in the building, in terms of energy consumption and its price.

The diploma thesis is to bring knowledge from the field of energy and simulation evaluation of buildings. Further, there is an introduction to the issue of energy and environmental assessment, legislative documents. A brief procedure for creating an energy model in a simulation program, then setting the model. Evaluated results from DesignBuilder that are in the form of charts. And also the evaluation of the measured data in the form of graphs from Libuše object in Karlova Studánka.

The thesis deals with the environmental assessment of buildings, concrete objects Letní lázně at Karlova Studánka. The first part describes the issue and legislation. There is also described a method of experimental measurement and methods of moisture measurement. The second part deals with the analysis of the specified object, description of selected renewable sources and description of possible modifications of the object. The third part is devoted to modeling and simulation of the specified object in DesignBuilder. Using the model were created various simulations with various modifications in order to reduce energy intensity of the object. Results were then evaluated and compared.

The aim of the master project is to design a mixed- use building in Brno – Žebětín. The project has three parts: architectural design of the building, HVAC design and HVAC performance simulation of kindergarten. The building is in shape of letter L. It has three floors and flat green roof. The building site includes a car park and playground.The building includes a kindergarten and flats. The ground floor is separated into two parts. First part includes the kindergarten, while the second includes entrance hall and the technical facilities for the flats in second and third floor. Both parts have separate entries. The vertical load-bearing structures are designed from Porotherm ceramic blocks and the horizontal load-bearing structures from reinforced concrete slab. The HVAC includes gas condensing boilers as heat source and photovoltaics for electricity supply on the roof. The HVAC performance simulation of kindergarten is created in DesignBuilder software and includes analyses of internal environment.The project is elaborated in AutoCAD, Revit, Deksoft, BuildingDesign and DesignBuilder.

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.