主动式建筑能耗检测的理论和实验研究

Theoretical and Experimental Study of Active Measurement of Building Energy Consumption Testing

研究并提出了一种新的建筑能耗检测方法——主动式建筑能耗检测法。这种方法采用温度随时间变化速率和加热器功率之间的相关系数作为能耗检测的指标。实验证明经过一段时间后这种相关系数会趋于稳定,并且其稳定值和模型围护结构的隔热性能存在定性关系。理论推导了相关系数稳定后的计算公式,揭示了其和围护结构之间的关系,通过和实验结果对比两者一致。实验和理论研究表明主动式建筑能耗检测法在实际应用方面具有可行性。

A new method for building energy consumption testing was opened and studied which is called active measurement method of building energy consumption. This method uses the correlation coefficient of derivative about the change rate of temperature with time and the heater power as building energy-saving target. Experiment proved that the correlation coefficient could turn to stability after a period of time and there is a qualitative relationship between stable value and the overall thermal performance of building envelope. The formula for calculating the stability value of correlation coefficient was showed by theoretical derivation which was indicated the connection between correlation coefficient and building envelope. The result of experiment and theoretic is consistent by contrast. The research shows that there is much feasibility of practical applications with active measurement method of building energy consumption.