050-基于室内空气品质和节能的建筑通风策略研究.pdfVIP

基于室内空气品质和节能的建筑通风 策略研究 华北电力大学 周佳佳 徐宝萍 白思彬 摘 要：本文利用建筑热模拟软件 DeST-Vent、机械通风模块、和 IAQ （Indoor Air Quality，室内空气品质）模型搭建通风、室内空气品质与能耗的综合模拟平台。选择北京 市某住宅建筑作为模拟对象，比较了自然通风不同窗户开度和机械通风新风机不同运行模式 和风量下的室内甲醛浓度和能耗，得到的主要结论为：开窗总时长相同时，增加开窗次数有 助于提高室内空气品质；开窗时，25%的窗户开度就足以稀释室内甲醛；为保证室内空气品 质，新风机间歇运行时所需的房间最小新风量为换气次数 5.1 h-1，新风机持续运行比间歇 运行更节能；在北方采暖季，采用机械通风稀释室内甲醛更节能。 关键词：甲醛 自然通风 机械通风 IAQ 模型 综合模拟平台 Study on Building Ventilation Strategies based on Indoor Air Quality and Energy Saving North China Electric Power University Zhou Jiajia, Xu Baoping, Bai Sibin Abstract: In this paper, a simulation plat is established for integrated study of ventilation, indoor air quality and energy consumption. The platform consists of thermal simulated software DeST-Vent, mechanical ventilation module and Indoor Air Quality model. A residential building in Beijing was simulated to observe indoor formaldehyde concentration and energy consumption, under the conditions of natural ventilation with different window opening degrees and mechanical ventilation with different operating modes of the fresh air unit. The main conclusions are: natural ventilation rate with 25% of window aperture is large enough to dilute indoor formaldehyde; under the same total opening time, the window opened more frequently has better ventilation effect; under mechanical ventilation condition with the fresh air unit runs intermittently, the minimum ventilation rate required for the room is 5.1 h-1; continuous operation mode is more energy-saving than intermittent mode for the fresh air unit; mechanical ventilation is more energy-saving than natural ventilation to dilute indoor formaldehyde during the heating season. Keywords:formaldehyde, natural ventilation, mechanical ventilation, IAQ model, integrated simulation plat 1 引言 近年来装修 VOC 超标问题日益严重，其中甲醛对人体危害大、在装修时