办公建筑内地板送风和置换通风模式对室内环境质量影响的数值模拟对比研究

Numerical Simulation of Underfloor Air Distribution and Displacement Ventilation's Effects on Indoor Environment for Office Building

对地板送风和置换通风进行了理论分析和比较,利用数值计算分别对某办公室采用地板送风和置换通风进行了模拟,从PMV、PPD、通风效率等方面对模拟结果进行分析,最终得出结论:地板送风比置换通风具有更大的送风温差,且工作区的温度梯度较小,更具有舒适性和节能性,可以为工程设计和运行管理提供有益的参考。

A numerical simulation was built to investigate the difference between underfloor air distribution （UFAD） and displacement ventilation. UFAD gets greater air-supply temperature difference, smaller temperature gradient in the work area, more comfort and energy efficiency through analysising PMV, PPD, ventilation efftciency and energy utilization factor.