A Study On The Factors Affecting Energy Consumption In A Typical Shanghai Office Building And Its Application In LEED

With sustaining economic growth and social progress, building energy consumption has occupied the largest share in the energy consumption in Shanghai, the economic center of China and the biggest city in China, its construction industry has been developing rapidly in recent years. It is urgent to control the building energy consumption in Shanghai. This thesis aims to find the most efficient factors and strategies of energy-saving with the limited investment.Firstly, based on the large amount of office building in Shanghai, as well as the reference of energy-efficient design standards to the construction and previous researches, this thesis proposed a typical office building model for building energy consumption study in Shanghai. This model was carried out by using the dynamic simulation software eQUEST. The data from a project was used to validate the presented model. The predicted energy consumption is about 9.11 percent higher than the data from the actual project, which means that the present model is reliable and can be used for the analysis of the building energy consumption.Based on the typical model mentioned above, this thesis chose 14 energy consumption factors from the building envelope, interference, and air conditioning system, and analysis the influencing degree of single factor. Through simulation analysis, degree of influence on energy consuming of each single factor was quantified, the key fator of building energy saving was appeared, and the prediction formula on the power consumption of each factor was built, this provides a good reference for the architecture energy saving design and reform.13 energy consumption influencing factors were chosen from those factor mentioned above, took advantage of method of orthogonal test,each orthogonal combination was done the corresponding simulation test by using of eQUEST building energy simulation software, and the results were analyzed by variance analysis, then we obtained the degree of influence on the energy consumption of these factors, and the most important factors are The COP of Chillers, Personnel Density, The Supply Air Temperature, Interior Design Temperature, Lighting Power Density, The Equipment Power Density. This analysis helps designers to optimize their design in the primary stage, and achieve the best energy-saving effect though the limited fund. Then this thesis introduced the United States LEED evaluation system and the evaluation standard of green building in China, and did camparative analysis, try to provide a reference for the green building assessment system on behalf of the owners, and the owner can select a suitable green building assessment system according to their specific purpose and the character of the building.Finally, The most representative three scores is selected in the Credit 4.1 in the LEED-NC 2009:3 points,6 points,9 points, and formulated three implementation strategies for each score.Based on the economic analysis of differend trategies,the optimal method is evaluated,with this method,it is possible to use the minimal incremental cost to get the maximum scores in the actual LEED certification project.