反射涂料的全年节能效果评价方法

Evaluation Method for the Annual Energy Saving Effect of Reflection Coating

针对反射涂料既能降低空调能耗又能增加采暖能耗的特点,研究反射涂料全年节能效果的评价方法,提出了与冬夏季太阳辐射量及采暖空调计算期关联的节能参考临界值αI。以夏热冬冷地区为例,当反射涂料在该地区特定城市的α值(夏冬太阳辐射强度比值)大于临界值αI时,反射涂料在本地区具有节能效果。进一步研究发现,不同空调采暖计算期对反射涂料的节能效果影响显著,应以城市为单位细化空调采暖计算期,进而准确评价反射涂料的节能效果。

The reflective coating can not only reduce air conditioning energy consumption, but also increase the heating energy consumption. This paper studies the evaluation method for the annual energy saving effect of reflection coating, proposes the energy - saving critical value of a） associated with the solar radiation and air conditioning calculation periods. In hot summer and cold winter region, for example, when the a value （ solar radiation intensity ratio of summer to winter） of reflective coating in a particular city in this region is greater than the critical value, reflection coating would have energy saving effect. Besides, different air conditioning calculation period greatly influence the energy - saving effect of reflection coating. The city should be taken as the unit to divide the air conditioning calculation period to evaluate the energy saving effect of reflection coating accurately.