热反射屋面等效碳减排效果研究.pdf

学兔兔 中国科技核心期刊 新 蟓 热反射屋面等效碳减；iE效果研究 江飞飞，周荃，杨仕超 (广东省建筑科学研究院，广东广州 510500) 摘要：热反射屋面对碳减排的贡献不仅在于降低了建筑空调制冷能耗的直接碳减排，还在于增大地表太阳反射比带来地表辐 射强迫降低，进而减缓全球变暖趋势的等效碳减排。在研究和总结国际广泛认可的地表反射比增强带来的等效碳减排计算原理和 方法的基础上，量化计算了全国城市建成区和典型城市建成区屋顶太阳反射比增强的等效碳减排效果。结果表明，通过采用热反射 屋面改造，北京、南京、广州3个典型城市，每1000mz屋顶太阳反射比增强0．6，等效碳减排量分别为28t、56t和131 t。全国城市建 成区屋顶太阳反射比增强0．6，相当于抵消了大气层中8．8亿t碳浓度的影响，等效减少碳排放16亿t。 关键词：热反射屋面；等效碳减排；计算原理 中图分类号：Tul11．3 文献标识码：A 文章编号：11301—702X(20l5)05—0072-03 Research of offset carbon emission reduction of solar reflecting roof JIANG Fe ，ZHOUQ ，YANG Shichao (Guangdong Provincial Academy of Building Research，Guangzhou 510500，Guangdong，China) Abstract：The carbon emission reduction contribution of solar reflecting roof not only come from direct carbon emission reduc- tion due to cooling energy consumption reduction，but also come from offset carbon emission reduction due to radiative forcing re— duction．On the basis of research of internationally recognized computation principle and pro~am，this paper calculates and gets the offset carbon emission reductions response to changes in roof albedos in China and some typical cities．The results show that the offset carbon emission reductions／ire respectively 28 t，56 t，131 t per 1000 m2 roof in Beijing，Naming and Guangzhou，through the retrofit of solar reflecting roof to increase the roof albedo by 0．6．And The increasing of surface solar reflectance of roof in Urban Built-up Area by 0．6 equals to offset O．88 billion tons of C02 that remains in the gas and 1．6 billion tons of CO2 emission． Key words：solar reflecting roof，offset carbon emission