Análise da aplicação de BIM na avaliação simplificada de eficiência energética da envoltória pela INI-C

Abstract

Energy efficiency labeling in buildings is a global trend and Brazil has contributed to the theme through initiatives such as the Brazilian Building Labeling Program (PBE Edifica). Relevant measures have been developed, such as Inmetro's technical regulations, the National Energy Conservation Label (ENCE), Normative Instruction No. 02/2014 and the publication of Inmetro's new normative instruction (INI-C). Despite the measures, the energy efficiency evaluation in Brazil is rarely performed and part of the problem lies in the difficulty in obtaining the data necessary for the evaluation. This project aimed to analyze the application of Building Information Modeling (BIM) in the envelope energy efficiency evaluation by the simplified method of INI-C. A study was carried out to analyze the potential that the BIM platform presents for the automatic extraction of project data. Based on the Design Science Research (DSR) method, modeling guidelines were created for the development of BIM models focused on the simplified evaluation of the envelope. It was observed that a BIM model, developed without a specific focus on energy efficiency evaluation, provided 39% of the necessary data for the evaluation. It was noted that the amount of data extracted automatically is directly related to the modeling guidelines adopted in the development of the BIM model. The application of the BIM modeling guidelines in a case study revealed that 100% of the data needed in the envelope energy efficiency evaluation were extracted directly from the BIM model, from a table generated by the platform. It was concluded that BIM has the potential to streamline PBE Edifica’s energy efficiency evaluation. However, the BIM model needs to be developed with a focus on the energy efficiency evaluation.