| 两种典型地板送风系统形式热舒适模拟分析 |
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| 引用本文： | 蔡永生,王昭俊.两种典型地板送风系统形式热舒适模拟分析[J].建筑热能通风空调,2012,31(1):61-64. |
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| 作者姓名： | 蔡永生 王昭俊 |
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| 作者单位： | 1. 机械工业第六设计研究院
2. 哈尔滨工业大学市政环境工程学院 |
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| 摘 要： | 通过模拟地板送风系统的两种典型系统形式,从获得的温度场、速度场、PMV场表明,下送上回系统较容易满足垂直空气温差的限值,下送下回系统容易超出垂直空气温差的限值,在低热力长度尺度（lm/H）时下送下回系统比下送上回系统容易获得舒适的环境,在高热力长度尺（lm/H）时,两种系统形式均易产生偏冷的室内环境。
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| 关 键 词： | 地板送风系统 热舒适 数值模拟 热力长度尺度 |
Numerical Study on Thermal Comfort of Two Typical Forms of Underfloor Air Distribution System |
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| CAI Yong-sheng,WANG Zhao-jun.Numerical Study on Thermal Comfort of Two Typical Forms of Underfloor Air Distribution System[J].Building Energy & Environment,2012,31(1):61-64. |
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| Authors: | CAI Yong-sheng WANG Zhao-jun |
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| Affiliation: | 1 No.6 Institute of Project Planning & Research of Machinery Industry 2 School of Municipal&Environmental Engineering,Harbin Institute of Technology |
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| Abstract: | Through the simulation of two typical forms of underfloor air distribution system,the velocity field and temperature field,PMV field were obtained,the results show that the Top Return system(TR) is easy to satisfy the vertical air temperature difference limits,while the Floor Return system(FR) is easy to exceed the vertical air temperature difference limits,and FR will easily obtain comfortable indoor climate when the thermal length scale(lm/H) is low,both of FR and TR will lightly generate a cold indoor environment when the thermal length scale(lm/H) is high. |
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| Keywords: | Under Floor Air Distribution system(UFAD) thermal comfort numerical simulation thermal length scale |
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