Estimation of the degree of humidity conditions in room space lined with different materials

在15℃~ 25℃的温度范围内，测量了一个内衬材料的密闭箱体内的相对湿度随温度的变化规律。此外，使用一个钢盒进行了同样的测量，其上部有两个通风管道（排气管和吸入管）。在假设绝对湿度恒定的情况下，估算了相对湿度随箱外温度变化的变化情况。利用相对湿度与温度的对数之间的线性回归曲线的斜率B来评价箱体内部材料的湿度条件程度。研究了B值、内衬面积与箱体体积之比（A/B）以及不同内部材料的通风次数之间的关系。同样的关系也适用于由三种不同材料组合而成的盒子，其a /V值对应于六席房间的地板、墙壁和天花板。在后一种情况下，木材的B值由木材在各自材料的A/V值上等于B值的A/V值之和确定。估算值与实测值吻合较好。人们认为，在不同材料组合的空间中，湿度条件的程度可以通过该程序进行评估。通过对6种木材和3种人造木制品（无机-有机复合材料）内衬密闭箱的温度-相对湿度关系的观察，估计出这些材料的吸湿和解吸量随着a /V的减小和比重的增大而增加。

The relative humidity as a function of temperature in a closed box lined with interior materials was measured when its ambient tempereture was changed periodically in the temperature range from 15℃ to 25℃. Furthermore, the same measurement was carried out using a steel box having two ventilating pipes (exhaust and inhalant pipes) on its upside. The change of relative humidity with the changes of temperature outside of the box were estimated by assuming a constant absolute humidity. The degree of humidity conditins by interior materials in the box was evaluated using the slope B of a linear regression curve between the logarithm of the relative humidity and the temperature. The relationship among the B value, the ratio of the lined area to the box volume(A/B), and the times of ventilations for respective interior materials were examined. The same relationships also were obtained for the box lined with a combination of three different materials whose A/V values corresponded to those of the floor, wall, and ceiling of a six-mat room. In the latter case, the B value of wood was detrmined from the sum of A/V values of wood equvalent to B values at respective A/V values of materials. The estimated values agreed well with the measured ones. It was considered that the degree of humidity conditions in a space lined with combinations of different materials could be evaluated by this procedure. From the relationship between temperature and relative humidity observed in a closed box lined with six kinds of wood species and three kinds of artificial of woody products (inorganic-organic composite), it also was estimated that the amount of moisture absorptionand desorption of these materials increased with decreasing A/V and withincreasing the specific gravity.