严寒地区某超低能耗建筑室内环境参数实测分析与评价

Experimental analysis and evaluation of indoor environmental parameters of an ultra-low energy consumption building in cold region

环境污染的防治与新能源改革的迫切实施之间的矛盾,已经成为我国在能源领域面临的主要问题。近零能耗建筑自身的围护结构具有高保温性能和多能源耦合热源的高利用率等特点,使其在建筑全生命周期内的投入和运行成本得到了显著优化。因此通过对建筑物的温度、相对湿度、噪音、CO_(2)浓度、新风量、采光等环境参数进行实地测试,评估其室内环境状况,为探索该区域超低能耗建筑的室内环境参数的分布特点和评价标识提供参考和依据。对严寒地区某超低能耗建筑——沈阳建筑大学养老体验中心进行环境实测。结果表明,夏季室内相对湿度过高,对人体热舒适产生不利影响,其余环境参数实测结果均符合《近零能耗建筑技术标准》中相应的规范值。结合测试结果提出可以放置干燥剂和下午适时开窗的改进措施,以降低夏季室内湿度和CO_(2)浓度。

The contradiction between the prevention and control of environmental pollution and the urgent need of new energy reform has become a major problem in the field of energy in China. The high thermal insulation performance and the high utilization rate of multi-energy coupling heat source in the maintenance structure of near-zero energy buildings make the input and operation cost of the buildings significantly optimized in the whole life cycle. With the promulation of national technical standards, how to evaluate the design parameters and energy supply indexes of near-zero energy buildings has also been put on the agenda. Therefore, the environmental parameters such as the temperature, relative humidity, noise, CO_(2) concentration, fresh air volume and daylighting of the building were tested on the spot to evaluate its indoor environmental status. It provides reference and basis for exploring the distribution characteristics and evaluation marks of indoor environmental parameters of ultra-low energy consumption buildings in this area. The environment of the Pension Experience Center of Shenyang Jianzhu University, an ultra-low-energy building in the severe cold region, was measured.The results show that the indoor reading humidity is too high in summer, which has adverse effect on human thermal comfort, and the measured results of other environmental parameters all conform to the corresponding standard values in the Technical Standard for Near-zero Energy Consumption Buildings. Combined with the test results, the improvement measures for placing desiccant and opening windows in the afternoon are proposed to reduce indoor humidity and CO_(2) concentration in summer.