Effectiveness Analysis of Ventilation in Guizhou Residential Buildings in Summer

Based on the climate consultant software,this paper analyzes the effectiveness of natural ventilation and mechanical ventilation in summer on Guizhou residential buildings through calculating the psychometric chart.The results show that the natural ventilation combined with proper mechanical ventilation can basically replace the using of air-condition in Bijie.In Guiyang and Xingyi,the ratio of effective time using mechanical ventilation is 85.13% and 80.20% respectively.Through establishing reasonable ventilation mode and airflow organization,the mechanical ventilation can replace basically the air-condition in summer.In Zunyi,the ratio of effective time using natural ventilation and mechanical ventilation is relatively lower,which is 21.20% and 51.60% respectively.The ventilation can reduce the open times of air-condition in Zunyi.