稳态环境下个体送风人体热舒适数值模拟

Numerical Simulation Study on Thermal Comfort of Human Body with Personalized Ventilation in Steady Situation

为了提高空调能效和人体的热舒适性,工位空调(TAC,Task Ambient Conditioning),即个体送风,渐渐成为研究的热点。本文探讨了在常规空调提供的稳态环境下,个体送风对人体热舒适的影响。在不同的背景温度、送风温度以及送风速度等边界条件下,对人体周围的热环境进行了数值模拟,比较分析了人体的热舒适性指标PMV。与传统空调模式的对比,个体送风在保证人体热舒适性的前提下,可以适当提高送风温度和背景环境温度,从而达到节能的效果。

Task ambient conditioning （TAC） systems, namely personalized ventilation, has been being studied and developed to improve the air-conditioning energy efficiency and the thermal comfort of human body. In this paper, it was investigated that the thermal response of human on personalized ventilation in steady situation. Through the numerical simulation for the thermal microenvironment around the human body, the thermal comfort index PMV was compared in different ambient temperature, supply air temperature and air supply velocity boundary conditions. Comparing with traditional air conditioning system, it was indicated personalized ventilation can improve the supply air temperature and the background environment temperature, so as to achieve the effect of saving energy, on the premise of the thermal comfort for occupants.