关于低温送风系统的通风、热舒适和空气品质的探讨

Discussion of Ventilation,Thermal Comfort and Air Quality in Cold Air Distribution System

介绍和评价了低温送风系统通风量、新风比的修正方法,空气分布性能指标ADPI(Air DiffusionPerformance Index)。分析了具有较低的相对湿度的低温送风系统对室内热舒适和室内空气品质的改善作用,得出在等效热舒适时,可通过提高室内干球温度,而降低空调系统的运行费用,同样在保证空气品质前提下,通过减少新风量,提高系统的经济性。

The author presents and appraises amending methods of ventilation quantity and fresh air proportion and air diffusion performance index （ADPI） in cold air distribution system, analyzes the improvement of indoor thermal comfort and air quality due to the low relative humidity in cold air distribution system. Therefore, with equal thermal comfort, indoor dry bulb temperature may get higher, and operating expenditure of air conditioner may decrease. In the same way, on the premise of high air quality, ventilation system may become more expenditure saving through reducing indoor fresh air requirement.