温湿度独立控制系统中建筑漏风量计算的探讨

Building Air Leakage Calculation for THIC Air Conditioning System

通过分析规范和技术措施对建筑漏风、室内正压及漏风量计算的规定,引出温湿度独立控制系统中漏风量计算方法及室内正压的确定方法,该方法考虑了室外逐时风速、门窗缝隙气密性分级、建筑朝向等影响,可计算室内不同正压下漏风量、漏风湿负荷情况。结合某案例介绍了以上计算方法的实际应用,探讨了不同室内正压下的漏风产湿量情况。另外在案例中计算了当出现开启外窗后,室内正压的变化情况、漏风情况及漏风湿负荷情况。

The stipulate of building air leakage and indoor positive pressure in standards and technical measures was introduced firstly. Through the analysis of the above provisions and THIC system characteristics, air leakage and indoor positive pressure caiculation method suitable for THIC system was introduces, which considers outdoor hourly wind speed, doors and windows airtight slot level, building orientation effect. This method can calculate air leakage and air leakage wet load in different indoor positive pressure. Combined with a case, the application of the above calculation method was introduced, and the air leakage wet load under different indoor pressure was discussed, and the indoor positive pressure changes, air leakage and air leakage wet load when the window open was calculated.