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Numerical Simulation for Thermal Comfort Using Conditioned Air through Mixing and Personalized Ventilation Systems in Field Environmental Chamber (FEC) 野战环境室(FEC)中使用调节空气混合和个性化通风系统的热舒适数值模拟
本文对现场环境室(FEC)办公室模型的热舒适性进行了数值模拟。本研究的目标是确定最佳方案,通过使用混合通风(MV)和个性化通风(PV)系统,为坐在电脑屏幕前打字的乘员提供空调供应,并将其分配到办公室内,从而为他们创造最佳的热舒适状态。使用计算流体力学(CFD)方法,特别是ANSYS FLUENT 14.0商业软件包,比较单独或同时使用不同流量的不同气流分配策略下乘员的热舒适条件。 该软件实现了预测平均投票率(PMV)和预测不满意百分比(PPD)等热舒适数学指标,并显示了它们的轮廓,以更精确地定义热舒适状态。得出的结论是,使用PV系统来维持工作办公室乘员的热舒适条件是非常有效的,并且是一个有吸引力的解决方案,供设计者在类似研究的情况下考虑。引用:ASHRAE论文:2015年ASHRAE年会,佐治亚州亚特兰大
Thermal comfort within a Field Environmental Chamber (FEC) office mockup was numerically simulated throughout the present paper. The goal of this research was to determine the best scenario to provide conditioned supply of air and distribute it inside an office room by using Mixing Ventilation (MV) and Personalized Ventilation (PV) systems to create the best status of thermal comfort for a sitting occupant who is typing in front of a computer screen. Computational Fluid Dynamics (CFD) method was used and specifically ANSYS FLUENT 14.0 commercial package software to compare the thermal comfort conditions for the occupant with different strategies of air distribution with various flow rates either being used solely or concurrently. Thermal comfort mathematical indices like the Predicted Mean Vote (PMV) and the Predicted Percentage of Dissatisfied (PPD) were implemented in the software and their contours were shown to define the thermal comfort status more precisely. It was concluded that using PV systems to maintain thermal comfort conditions for a working office occupant can be very effective and an attractive solution for designers to consider in situations similar to the study.
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