OPTIMIZATION DESIGN OF CURTAIN WALL UNDER THE REQUIREMENTS OF GREEN MARK CERTIFICATION

摘要

Green Mark international criteria for non-residential buildings were introduced, which was adopted in structural design of curtain wall to enhance energy efficiency of buildings. Based on the requirements of Green Mark international criteria, thermal parameter analysis and joint design optimization of a curtain wall system were conducted to optimize the structural design. Air-conditioning load of different functional zones at various temperatures was analyzed to distinguish the influences of functional zones. Condensation of horizontal frame of curtain wall was simulated by numerical method to obtain the thermal efficiency and to evaluate energy efficiency degree of entire curtain wall system. The results showed that the thermal performance was improved efficiently by optimizing joint design, which based on the principle of minimizing energy cost of curtain wall under both working conditions and maintaining conditions. Different functional zones of buildings had different weight set on affecting thermal performance of curtain wall, which indicated that the thermal performance of buildings was mainly determined by outer region. Through the simulation of condensation of horizontal frame, it was demonstrated that the thermal performance of optimized joint design was improved and the energy efficiency of entire curtain wall system was satisfied the requirements of Green Mark certification.