The basic assumption of an energy-efficient project is the proper relation with the local climatic context. To analyse a building's performance before its construction, it is necessary that the object to be designed is recreated in a virtual environment, to evaluate its thermal balance. In order to recreate this virtual environment, it is necessary to use computer programs, and that requires a file composed of a weather database organized hourly in a specific year and defined, in the case of this article, from a TRY (test reference year). The objective of this study is to prepare a weather file for the city of Pelotas, RS, Brazil. This research was structured in five stages. In the first stage, the TRY was determined. In the second stage, the necessary variables for the preparation of the weather file to be used in the programs EnergyPlus© and Design Builder© were created and treated. In the third stage, weather files were prepared in .epw and .try formats. In the fourth stage, the weather file generated was simulated and compared with two other weather files belonging to the same bioclimatic zone. In the fifth and last stage, a typical day was elaborated for the city of Pelotas. As a result, the importance of optimization of the EPW generation process based on algorithms was highlighted. It was also verified that although we have three nearby cities with similar characteristics, it is possible to have differences of simulation results when the appropriate weather file is not used.
ResumoOs sistemas de proteção solar cumprem um importante papel no controle seletivo de radiação solar no ambiente interior, interferindo, portanto, no desempenho luminoso, térmico e energético das edificações. Este artigo tem como objetivo realizar um estudo comparativo do desempenho de sistemas de proteção solar (fixos e móveis mecanizados) de uma edificação com elevado nível de isolamento térmico utilizando para isso a ferramenta Energy Management System (EMS) do software Energy Plus. As estratégias metodológicas propostas envolvem a análise da configuração de oito diferentes sistemas de proteção solar para os fechamentos transparentes, modelagem dos brise-soleils fixos, implementação do EMS para brise-soleis mecanizados e por fim, análise dos resultados das simulações realizadas. Foram avaliados os percentuais de conforto térmico e de consumo de energia elétrica considerando as zonas bioclimáticas brasileiras 1 e 8. Dentre os casos testados, o modelo com a utilização de persianas externas automatizadas pelo sistema EMS nos fechamentos transparentes apresentou os maiores percentuais de conforto térmico e o menor consumo de energia elétrica nas duas zonas bioclimáticas brasileiras analisadas.Palavras-chave: Proteção Solar. Energy Management System. EnergyPlus. Simulação Computacional. Abstract Solar protection systems play a significant role in the selective control of solar radiation in the interior space interfering, therefore, on the lighting, thermal and energy performance of buildings. This paper aims to conduct a comparative study of the performance of a solar protection system (fixed and automated mobile) of a building with a high level of thermal insulation using the Energy Management System (EMS) tool of the Energy
This article reports the discussion about the multiple relations between architectural design and "place" using two different approaches in order to characterize the interfaces of design challenges. The first is qualitative, highlighting the lack of dialogue between the standard-project architecture, the guidelines recommended by the COEDI (Coordenação Geral de Educação Infantil (General Coordination of Early Childhood Education)) of the Ministry of Education, socio-technical and cultural-environmental context and pedagogy. The second, more quantitative, addresses the problems generated by dissociation between the constructive solutions and the bioclimatic demands of different insertion contexts of architectural design in the Brazilian Bioclimatic Zone 2. Initially planned to use a conventional building system, it was transposed to the Wall System, developed by MVC Componentes Plásticos Ltda. The simulation evaluates and compares the level of thermal comfort of the building with two envelope systems. The study reports the analysis of the thermal comfort of a Type C unit, based on thermodynamic simulation, through the software Design Builder (version 4.2.0.054). The analysis of the building simulation results was based on the adaptive comfort model ASHRAE 55/2010. Later, three optimization measures of the thermal comfort level of the building were tested, based on thermal insulation and absorptance coverage, in addition to sun protection system design for the window frames. Preliminary results for the level of comfort of long permanence environments indicate a low level of thermal comfort, the 50% in MVC system and around 60% in the conventional system, and also that the greater discomfort comes from the heat. Based on performance optimization measures of building, the MVC system reached 66.4% of thermal comfort compared to 62% in the conventional system. The results show the importance of adapting the standard project to the local climatic context.
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