基于建筑环境因子的建筑能耗预测研究

Prediction of building energy consumption based on building environmental factors

通过研究严寒与寒冷地区的建筑外部环境因子与建筑供暖能耗指标的关系,分析两者之间存在线性关系。对能耗指标未知地区,根据建筑外部环境因子直接计算建筑的能耗指标。在研究过程中,主要使用MATLAB的数学建模功能,实现因变量与自变量之间的线性或者非线性关系的探究,并且通过MATLAB对求得的数据进行图形化处理和百分比平均误差的算法计算,判断回归线性模型的好坏,从而求得相对优越的回归模型,实现相对误差最小的能耗指标计算,为低碳发展提供可量化的技术支撑。

This study analyzes the linear or non-linear relationship between the building external environmental factors and building heating energy consumption index in cold and severe areas,so as to achieve the purpose of calculating building energy consumption index directly according to building external environmental factors in areas with unknown energy consumption index.In the research process,we mainly use the mathematical modeling function of MATLAB to explore the linear and non-linear relationship between dependent variables and independent variables,and use MATLAB to graphically process the obtained data and calculate the percentage average error algorithm to judge the quality of linear and non-linear regression model,so as to obtain a relatively superior regression model to achieve relative error The calculation of minimum energy consumption index provides building energy consumption index in line with the national green building evaluation standard for building design.