| 摘要 |
PURPOSE:To save power and keep pollution density low by a simple method, by setting the threshold value of a pollution generation quantity, step by step, and by increasing or reducing the number of operated ventilators every time the forecast value of pollution generation is more or less than the threshold value. CONSTITUTION:The threshold value of a pollution generation quantity in a tunnel is set step by step, and on each step, the optimum number of operated ventilators is computed and determined. Every time the forecast value of the pollution generation quantity is more or less than the pollution value, the number of the operated ventilators is increased or reduced. Besides, based on the experience of an operator, the priority degree of the start and stop of the operation of the ventilators is selected by the operator, and if required, the threshold value is corrected, and the ventilators are operated according to actual situation. |
