Optimization control method based on mechanical ventilation rate of long vertical enclosed bus

The invention discloses an optimization control method based on a mechanical ventilation rate of a long vertical enclosed bus (IPB). The mechanical ventilation rate V inside the long vertical enclosed bus, a temperature difference deltaT between IPB inlet and outlet, and heat source strength q satisfy a relation: V=a1+a2*deltaT+a3*q+a4*deltaT +a5*q +a6q*deltaT, wherein a1 is a first coefficient, a2 is a second coefficient, a3 is a third coefficient, a4 is a fourth coefficient, a5 is a fifth coefficient, and a6 is a sixth coefficient. The optimization control method verifies a result that the long vertical enclosed bus (IPB) has an optimal ventilation rate through mechanical ventilation when meeting the requirements of heat balance and temperature through numerical calculation and field test data. Through optimal calculation of the mechanical ventilation rate, the temperature different requirement can be ensured, the energy consumption of selected ventilation equipment is ensured to be minimal, and the purpose of saving energy is achieved. The research results of the optimization control method for the mechanical ventilation rate of the long vertical enclosed bus have great significance for finding the optimal mechanical ventilation rate for heat balance of an IPB vertical shaft and achieving the energy saving and emission reduction purposes on the premise of satisfying the IPB operating environment.