保温材料对建筑能耗及回收期的影响分析

Analysis of the Influence for Insulation Materials on the Building Energy Consumption and the Payback Period

为了选取合适的保温材料,使得建筑总的一次能耗达到最优,本课题通过考虑建筑的使用周期、保温层厚度和基层墙体的传热系数等因素,建立生产保温材料能耗和建筑运行能耗以及总的一次能源消耗计算模型,分析不同种类保温材料对总的一次能源消耗的影响,进而建立最佳保温层厚度和回收期计算模型。研究发现,不同材料的总能耗是不一样,但是都存在一个最低能耗值,该值对应的厚度即为最佳保温层厚度。随着保温层厚度的增加,能耗回收期也逐渐增加。此外,基层墙体(未做保温层的墙体)的传热系数也影响能耗回收期,传热系数越大,能耗回收期也越长。

In order to select suitable thermal insulation material,so that the total energy consumption of the optimum,the use of this topic by considering the construction cycle,thermal insulation layer thickness and the wall heat transfer coefficient at the grass-roots level and other factors,building insulation materials production energy consumption and building energy consumption and the total primary energy consumption calculation model,analysis of different kinds of thermal insulation material influence on the total primary energy consumption,and the best model for calculating the thermal insulation layer thickness and the payback period.Studies have found that,total energy consumption of different material is different,but there is a minimum value of energy consumption,The value corresponding to the thickness of the insulation layer thickness is best.With the increase of thermal insulation layer thickness,payback period and energy consumption increase.In addition,the payback period of wall heat transfer coefficient and energy consumption at the grassroots level,the heat transfer coefficient,the greater the energy consumption of the payback period.