電子計算機による風量, 温度および湿度の同時計算

抄録

The rate of flow in mine airways is influenced by the natural ventilation pressure in each mesh, which depends upon the distribution of altitude, temperature and humidity along the mesh. The temperature and humidity, however, are affected by the rate of flow. This relationship should be considered on analyzing ventilation networks. The authors have investigated how to practice such an analysis and have obtained a computer program for this purpose.
This program consists of a subsystem for networks analysis and a subsystem for temperature and humidity analysis. The latter is a kind of trial and error methods, in which the heat transferred from rock, machines and soon to air current, the variation in altitude and the evaporation of water on rock surface are taken into account. By comparing the results of calculation with those of measurement, it has been ascertained that this program yields considerably good results and can be put to practical use.