Ventilation design rate calculation in ventilation season for public buildings of Chongqing

Ventilation in transition season for public buildings can bring about a significant energy saving effect, but the difficulty in calculating the ventilation rate hinders the effective use of this technique. Based on the existing theoretical research of energy-saving for public building ventilation，with the design load parameters in the Design standard for energy efficiency 65% of public buildings for Chongqing, presents the calculation method of the ventilation rate, and proposes the ventilation design rate index for the typical buildings in this area.