Building Information Model in Energy PerformanceCHAPTER 3 RESEARCH METHODOLOGYCHAPTER 3 RESEARCH METHODOLOGYIntroductionBuilding Information Model can be applied in various stages from feasibility study to demolition stage. The application of BIM in energy performance and life cycle cost assessment are presented in this research. According to Grilo and Jardim-Goncalves (2010), Building Information Modelling can be applied to the design of energy performance of a building and to evaluate the difference between various construction materials of the envelope. BIM becomes possible to assess the performance of the life cycle cost of the building in the early design stages.To study the benefits and ambiguous of the integration of the BIM and Life Cycle Cost Assessment, the energy-saving performance of the curtain wall system was focused to have assessment in annual energy consumption , by using BIM softwares. Through the assessment of energy consumption, the Life Cycle Cost of HVAC system and lighting system of the commercial building can be evaluated.
