Avaliação do ciclo de vida energético de construções durante a fase pré-operacional com auxílio de ferramentas BIM

Abstract

The Life Cycle Assessment (LCA) is na important tool to analyze and to quantify envirolmental impacts about a product or service. Building LCA has it’s peculiarities due specific characteristics. It is essential that building LCA be made during the predesign stage so that impacts caused by improvisations and materials waste could be avoided. The Energy Life Cycle Assessment is defined as a LCA method that analyzes the impacts based on energy consumption in the cycle. Building Energy LCA phases is classified as pre operation, which is the energy consumption on materials processing, manufacturing and transportation, and people transportation, call as embodied energy; operation phase, that is the energy consumed by equipment and maintenance during building life; and the post operation phase, that is the energy consumption in destruction and waste transport. This papers present a methodology to calculate the embodied energy of a building in pre - operation phase, using the Revit Architecture to improve material selection process. Today BIM aims to reduce rework, to properly manage project information, to model and simulate buildings performance about temporal, economic and sustainable perspective. The proposed method has proved as a feasible and practical tool, since it easily provides results about embodied energy, once materials and model settings are defined.