Lei Deng∗ and Songtao Huo
BIM technologies, building energy management, digital twins, intelligent control
The construction industry faces the problems of low energy efficiency, high energy waste and the need for efficient integrated management systems in energy management. Based on BIM technology, this study explores how to construct an optimised building energy management system by using advanced technical means. When optimising the energy efficiency of super high-rise buildings, building information modelling (BIM) technology is used for energy consumption simulation as well as data analysis, and some key optimisation results are obtained. Experimental data show that the optimised building energy efficiency has increased by 23.7%, and the energy consumption has been dramatically reduced. By further optimising the building form and design elements, the building energy efficiency has increased to 41.6%. Under the control of energy consumption management system, the response time of the system is significantly shortened, as well as the maximum energy efficiency is increased to 53.8%, effectively reducing the carbon emissions of the building. Comprehensive analysis shows that 99.2% of the building areas can achieve optimal utilisation of energy. Through refined control strategies, the area with the best energy efficiency performance achieved an energy-saving effect of 80.3%. With the improvement of building facade design, the energy-saving ratio increased by 12.5%. Through multi-dimensional optimisation, the overall energy efficiency of the building system has risen to 46.7%.
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