不同建筑形式犊牛舍二氧化碳的比较与分析

Comparison and Analysis of Carbon Dioxide Concentrations in Different Styles of Calf Barns in Spring and Autumn in Cold Region

选取河北北部山区3种有代表性建筑类型的犊牛舍,对春秋季节舍内外空气中二氧化碳(CO_2)含量进行检测与分析,旨在研究我国寒区不同建筑类型犊牛舍的空气质量。结果表明,半开放舍和南侧带窗密闭舍的CO_2含量显著高于两侧带窗舍(P<0.05),春秋两季三种犊牛舍CO_2含量均表现为早晚高、中午低的趋势,最高可达1 081mg/m^3(南侧带窗舍的春季早上),最低为397mg/m^3(两侧带窗密闭舍)。除了南侧带窗密闭舍,犊牛舍内的CO_2含量均显著高于舍外(P<0.05)。

The subjective of the study was to investigate the air quality of different styles of calf barns in the cold regions in China.Three representative styles of calf barns in north mountainous area of Hebei province were used to detect indoor and outdoor concentrations of carbon dioxide（CO_2）in both spring and autumn.The result indicated that the CO_2 level in the semi-open house or closed house with south windows was significantly higher than the house with windows on both sides（P〈0.05）,while there was no significant difference between the CO_2 level in the semi-open house and closed house with south windows（P〈0.05）.In both spring and autumn,the CO_2 levels of all three styles of calf barns showed the trend of high level in the morning and evening and low level at noon.The highest value of CO_2 level was 1 081mg/m3 in spring morning in the house with north windows,and the lowest was 397mg/m3 in the house with windows on both sides.Compared with outdoor CO_2 levels,the indoor CO_2 levels were significantly higher（P〈0.05）,except for the house with south windows.The result of the study would provide some reference for the architectural design of calf houses.