摘要
为了达到更好的室内热舒适度,分析了卡式四出风风盘送风角度对室内人体热舒适度的影响差异,得出人体舒适度较高时的最佳送风角度。通过Airpak模拟软件,以工作区内温差(ΔT)、风速、湿度、平均热感觉指数(PMV)、预测不满意百分数(PPD)、空气龄(t)等作为衡量标准,得出较理想的送风角度排序为45°>30°>60°>90°,并可以得出在送风角度为45°时,垂直高度方向存在明显温度梯度。在工作区,ΔT≤3℃、风速小于0.3 m/s、−0.14≤PPMV≤0.44、5.00%≤PPPD≤9.08%、258.8 s≤t≤300.6 s,人体舒适度好、空气品质较高。本研究为优化空调送风形式,改善室内热舒适性提供了新思路。
In order to achieve better indoor thermal comfort,we analyzed the difference in the influence of the air supply angle of the four-outlet cassette fan coil on the indoor thermal comfort of human body,and obtained the optimal air supply angle when a person feel more comfortable.By the simulation software Airpak,using the temperature difference(ΔT),average wind speed,humidity,predicted mean vote(PMV)and predicted percentage of dissatisfied(PPD),air age(t)in the work zone as a measure of thermal comfort,it is concluded that ideal air supply angle is 45s>30 s>60 s>90 s.And when the air supply angle is 45°,there is obvious temperature gradient in the direction of vertical height.In the workspace,temperature differenceΔT≤3℃,wind speed is less than 0.3 m/s,−0.14≤PPMV≤0.44,5.00%≤PPPD≤PD0%−,258.8 s≤t≤58.8 ss.In this case,the person feels comfortable and the air is high-quality.This study provides a new idea for optimizing air supply form and improving indoor thermal comfort.
作者
沈文增
庄兆意
李彬
王斌
SHEN Wenzeng;ZHUANG Zhaoyi;LI Bin;WANG Bin(School of Thermal Engineering,Shandong Jianzhu University,Ji’nan 250101,China;Mechanical and Electrical Equipment Department,Shandong Museum,Ji’nan 250014,China)
出处
《应用科技》
CAS
2020年第6期90-95,共6页
Applied Science and Technology
基金
国家青年科学基金项目(51708339)
山东省高等学校“青创科技计划”(2019KJH012)
济南市科研带头人项目(2019GXRC066).
