居住建筑通风净化软件IAQS研发及验证

R&D and Verification of Residential Building Ventilation and Purification Software IAQS

鉴于人们对居住建筑室内空气品质的重视以及针对居住建筑室内PM2.5浓度预测及分析评价软件的较为匮乏,本研究开发了界面友好、操作简单的居住建筑通风净化软件(IAQS),并依托De ST软件的建筑热环境(BAS)和通风(Ventplus)计算分析模块,模拟预测不同通风净化形式以及通风净化策略下室内温度、CO2浓度、PM2.5浓度及建筑采暖空调能耗和通风净化能耗。进一步以自然通风方式为例,分别以1个房间和2个房间的建筑为模拟对象,进行IAQS与Energy Plus软件之间的对比验证,结果显示:1)对于1个房间的建筑,IAQS和EnergyPlus软件两者CO2浓度逐时计算结果的平均相对偏差为7.0%,PM2.5浓度逐时计算结果的平均相对偏差为11.0%;2)对于2个房间的建筑,2个软件CO2浓度逐时计算结果的平均相对偏差为18.9%,PM2.5浓度逐时计算结果的平均相对偏差为20.6%。两者的计算偏差基本在合理范围内,由此证实了IAQS软件模拟结果的可靠性。

In view of the attention paid to the indoor air quality of residential buildings and the lack of software for prediction and analysis of indoor PM2.5 concentration in residential buildings,residential building ventilation and purification software(IAQS) with friendly interface and simple operation was developed in this study,and the building thermal environment(BAS) as well as the ventilation(Ventplus) calculation and analysis modules of De ST software were relied on to simulate and predict the indoor temperature,CO2 concentration,PM2.5 concentration,air conditioning energy consumption of building heating as well as ventilation purification energy consumption under different ventilation and purification forms as well as ventilation purification strategies.Taking the natural ventilation as an example,the comparative verification between IAQS and Energy Plus software was performed with one-room and two-room buildings as simulation objects.The results show that: 1) for one-room buildings,the average relative deviation of the hourly calculation results of CO2 concentration in both IAQS and Energy Plus software is of 7.0%,and the average relative deviation of the hourly calculation results of PM2.5 concentration is of 11.0%;2) for two-room buildings,the average relative deviation of the hourly calculation results of CO2 concentration in both software is of 18.9%,and the average relative deviation of the hourly calculation results of PM2.5 concentration is of 20.6%.The calculation deviation between the two basically falls within a reasonable range,and the reliability of the IAQS software simulation results has been confirmed accordingly.