Trombe wall is a passive building energy saving technology that uses solar energy to reduce buildings’ heating load and adjust indoor thermal environment. In recent years, much research has been done to increase the thermal efficiency of Trombe wall, but little is focused on the evaluation of Trombe wall from energy, economic and environmental aspects comprehensively. Based on the thermal performance calculation method in ISO 52016-2:2017(E), the authors proposed a concise method to evaluate the energy, economic and environmental performance of ventilated and non-ventilated Trombe walls during a heating season. Firstly, non-iteration calculation methods were introduced for the energy evaluation of Trombe wall and conventional wall during the heating season. Then the economic and environmental evaluation models were brought out according to the energy performance of Trombe wall. After that, a residential building was presented as the case building to evaluate Trombe walls’ performance in five building climate zones of China. The calculation results showed that both heating degree days and solar radiation had significant impact on the energy saving effect of Trombe walls. In comparison with non-ventilated Trombe walls, ventilated ones displayed more obvious energy saving potential in all five climate regions, which can provide averagely 62% more heating for the room in the case study. Though the heating degree days of Guangzhou (hot-summer and warm-winter zone) was the smallest in the five zones, ventilated Trombe wall in the zone had the poorest economic performance due to the scarcest solar radiation during the heating season. 特朗勃墙是一种利用太阳能降低建筑能耗和改善室内热舒适的被动式节能技术。近年来的研究多集中于提升特朗勃墙的热性能方面,但对特朗勃墙能量、经济和环境综合评估的研究较少。作者基于ISO 52016-2:2017(E)中的关于特朗勃墙热性能的计算方法,提出了一种评估通风和非通风特朗勃墙在供暖季下能量、经济和环境方面综合表现的简单方法。首先,本文介绍了一种评估特朗勃墙和普通外墙能量表现的非迭代方法,随后根据特朗勃墙的能量表现对其进行经济性评估和环境效益评估,最后研究了处于中国不同气候区的居住建筑特朗勃墙的综合性能。结果显示,供暖度日数和太阳辐射强度对特朗勃墙的节能效果具有重要影响,相比于非通风特朗勃墙,通风特朗勃墙在所有工况下可平均多提供62%的热量,具有更好的节能表现。尽管处于夏热冬暖的广州地区的度日数是五个气候区中最小的,但是由于该地区供暖季的太阳辐射强度较差,广州地区的特朗勃墙的经济效益也较差。
ZHANG Hongliang; SHU Haiwen*
. A Comprehensive Evaluation on Energy, Economic and Environmental Performance of the Trombe Wall during the Heating Season;供暖工况下特朗勃墙能源、经济和环境性能的综合评估[J]. 热科学学报, 2019
, 28(6)
: 1141
-1149
.
DOI: 10.1007/s11630-019-1176-7