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首页> 外文会议>PALENC Conference on Building Low Energy Cooling and Advanced Ventilation Technologies in the 21st Century >The effect of natural ventilation on the indoor air quality in classroom of the elementary school without heating equipments during winter season
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The effect of natural ventilation on the indoor air quality in classroom of the elementary school without heating equipments during winter season

机译：自然通气对小学教室室内空气质量的影响而无需供暖设备在冬季

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Field survey on indoor air quality was conducted during winter season, in an elementary school at Kagoshima city. As the windows had been closed because of avoiding the cold outdoor air In the winter, CO_2 concen- tra-tions under pupils staying in the classroom were over 1500 ppm at the end of the lesson. When the windows of the corridor facing outside had been open, the CO_2 concentrations in corridor were close to the outdoor CO_2 concentrations. It was found that the ventilation during the break could play an important role in CO_2 concentrations during the next lesson. The CO_2 emission rate from one third grader child was calculated as 0.011m~3/h. In terms of the rise of indoor CO_2 concentration since the lesson had started, it was found that the influence of the accumulation of the CO_2 before the lesson on the CO_2 concentration during the lesson was very large. The natural cross ventilation during the break of the lesson could be important. It turned out that the indoor CO_2 concentration did not exceed 1500 ppm in 75% of time of a 45-minute lesson where 39 children occupied and the air change rate was 0.6 h~(-1). if indoor CO_2 concentration would decrease to outdoor level by opening windows during the break.
机译：在冬季进行室内空气质量的现场调查，在鹿儿岛市的一所小学。由于窗户被关闭，因为冬季避免了寒冷的室外空气，在课程结束时留在教室的瞳孔下的CO_2凝聚量超过1500ppm。当走廊的走廊窗户开放时，走廊中的CO_2浓度接近户外CO_2浓度。发现休息期间的通风可以在下一课期间在CO_2浓度中发挥重要作用。来自一个三年级学生儿童的CO_2发射率计算为0.011m〜3 / h。在由于课程开始以来的室内CO_2浓度的兴起方面，发现在课程期间课程中的课程课程中的CO_2积累的影响非常大。在课程中的自然交叉通风可能是重要的。事实证明，室内CO_2浓度在75％的时间内不超过1500ppm，在45分钟的课程中占用39名儿童，空气变化率为0.6小时〜（-1）。如果在休息期间打开窗户，室内CO_2浓度会降低到室外水平。

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