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暖通空调杂志社>期刊目次>2018年>第6期

夏季工况会议室侧送侧回空调人体热舒适性模拟

Human thermal comfort simulation in meeting room with sidewall supply and return air conditioner in summer working condition

黄文雄 付海明
东华大学

摘要:

基于人体生物热方程,采用两节点模型,提出了采用对流、辐射及人体热平衡耦合求解方法模拟人体温度分布及侧送风空调房间热环境。考虑了人体对流及辐射的影响,采用耦合求解及太阳射线追踪法计算室内人体周围的热环境参数。研究了室内速度分布、温度分布规律,同时计算出室内PMVPPD的值,分析了室内人员的热舒适性情况。模拟结果表明:依据耦合求解法获得的人体表面温度分布模拟结果与相关文献结果吻合较好;室内风速和温度对人体热舒适性的影响很大;对于采用同侧侧送侧回气流组织形式的空调房间,在送风口近端人体的热舒适性较差,而远离送回风口端的热舒适性较好。

关键词:侧送侧回,空调,湍流,热舒适,温度分布,模拟,耦合求解

Abstract:

Based on the bio-thermal equation of human body, adopts a two-node model and simulates the human body temperature distribution and the thermal environment of air conditioning rooms with sidewall air supply by coupled solution of convection, radiation and heat balance. Considering the effects of human body convection and radiation, calculates the indoor thermal environmental parameters with the coupled method and solar ray tracing method. Investigates the indoor wind speed distribution, temperature distribution and their rules. Calculates the values of indoor PMV and PPD and analyses the thermal comfort of indoor occupants. The results show that the simulation data of human body surface temperature distribution is in accordance with the test results of related literatures. Wind speed and temperature greatly influence human thermal comfort. In an air conditioning room with the air distribution form of sidewall air supply and return, the thermal comfort is poor when close to air inlets, and will be better when away from air inlets.

Keywords:sidewallsupplyandreturn,airconditioning,turbulence,thermalcomfort,temperaturedistribution,simulation,couplingsolution

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