Optimization Design Envelope for Building in Hot Climate Using Design of Experiment and Life Cycle Cost

Nowadays sector of a building is one of the biggest energy consuming field and ranked first in many countries. The energy consumption for the building is related to the design stage. Many factors that should be taken into account for this stage, such as techno-economical parameters, directly affect the building energy consumption. Co-simulation is applied to optimize the design of residential buildings located in a hot climate to minimize life cycle costs while increasing their energy efficiency. A new approach of building performance assessment based on parametric design and analysis life cycle cost used the co-simulation method, in this study, we reduced the need for seasonal energy consumption by air conditioners and analyzed life cycle cost, 15 thermal and geometric factors are selected in this study such as Surface, Factor form, heat transfer through the walls, roof, and ground, also coefficient of absorption for solar radiation of the roof and the wall, Windows to Wall Ration and Factor Solar of Windows for four directions North, South, East, and West. The results of the metamodel from the co-simulation are compared against those obtained from a TRNSYS dynamic simulation; the fractional factorial metamodel has been accurate results. Then, the optimal design features of the envelope building are determined with life cycle cost can be saved 30.21%.