Algorithm of complex ventilation network solution based on circuit air-quantity method.

With the mine ventilation system becoming more and more complex,the traditional calculation methods have difficulty in meeting the requirements of network solution. It's of significance to develop a quick algorithm for calculating complex wind network. The theory of network solution of circuit air-quantity method was systematically and thoroughly studied. Also, the limitation of the existing ventilation network solution was analyzed. An improved network solution based on Scott-Hinsley method was put forward. With a high convergence rate,this algorithm can solve the problems of ventilation network including unidirectional circuit and the network solution problems of complex ventilation system. BFS method was used to improve the structure of the spanning tree,and the divided circuit was faster by using Double-Access method. Achieving the fixed half cut set of air distribution in ventilation network,the algorithm can automatically distribute air according to demands. The failure cause of circuit air-quantity network solution with the unidirectional circuits was analyzed. The algorithm proposed can solve the problems of ventilation network including unidirectional circuit by modifying its search strategy. [ABSTRACT FROM AUTHOR]