Research and Development of Passive Solar House with Airflow System in Brick Walls

本文报道了砖墙通风系统被动式太阳能房。对砖房的室内热环境进行了测量。然后利用计算机模拟软件计算温度、湿度、室内空气质量和冷热负荷。试验房的搭建及室内热环境预测(1)建立了砖墙气流系统被动式太阳能房。这间测试房有一面特伦贝墙、一个太阳能收集器和一个冷却管。(2)计算了砖墙的温度和相对湿度，阐明了砖墙的特性。试验房屋室内热环境的测量(1)与未安装被动式系统的试验房屋相比，安装被动式系统的试验房屋夏季热负荷降低37%，冬季热负荷降低35%。(2)阐明了被动系统的作用和试验室的特点。在夏季，考虑了冷却管的安排和交叉通风。在冬季，阐明了气流供暖系统的有效性。(3)试验房建成一个月后，室内甲醛浓度超过指标值（有地毯的房间）。然而，在建成半年后，室内甲醛浓度低于指导水平。利用计算机模拟，阐明被动式太阳房在全国范围内的有效性。考虑了几种被动式技术来减少砖房的能量。

This paper reports the passive solar house with airflow system in brick walls. The indoor thermal environment of the brick house was measured. Then, temperature, humidity, indoor air quality and heating and cooling load were calculated using computer simulation software.1. Construction of the test house and predictions about the indoor thermal environment(1) A passive solar house with airflow system in brick walls was constructed. This test house has a Trombe wall, a solar collector and a cool tube.(2) Temperature and relative humidity of brick walls were calculated and the characteristic of brick walls was clarified.2. Measurement on indoor thermal environment of the test house(1) Compared to the heat load of the test house without the passive system, that of the test house with the passive system was 37% lower in summer and 35% lower in winter.(2) The effects of the passive system and the characteristics of the test house were clarified. In summer, the schedule of the cool tube and the cross-ventilation were considered. In winter, the effectiveness of the heating with the airflow system was clarified.(3) A month after the completion of the test house, the formaldehyde density in the room was over the guideline level (at the room with carpet). However, half a year after the completion, the formaldehyde density in the room was below the guideline level.3. Simulation of indoor thermal environment of the test houseThe effectiveness of the passive solar house in all over the country was clarified using the computer simulation. Several passive techniques were considered to reduce the energy of the brick house.