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基于Gebhart-Block模型的大空间建筑对流热转移负荷分析 被引量:2

Convective Heat Transfer Load of Large Space Vent System Based on Gebhart-Block Model
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摘要 针对大空间建筑喷口分层空调系统,从Gebhart-Block模型出发,完善多股喷口射流子模型并建立模型中各区域的质量平衡方程和能量平衡方程。由方程迭代求解室内各区域垂直空气温度和内壁面温度。通过分析喷口送风形式下对流热转移负荷的形成机理,利用GebhartBlock模型计算稳定传热条件下的对流热转移负荷。再通过上海理工大学缩尺模型试验台,对所建模型进行验证,得到适合于喷口送风形式下的分层空调对流热转移负荷的计算方法。文章的创新在于利用理论模型计算大空间喷口送风分层空调的对流热转移负荷,揭示了对流热转移负荷的形成机理。 Based on the Gebhart-Block model, the paper aims at Nozzle air supply system and refines the multi-jet nozzle sub-model, and establishes the mass balance equations and energy balance equations for each region in the model. The vertical air temperature and the inner wall surface temperature in each indoor area can be calculated by the equations. The Gebhart-Block model has been used to calculate the convective heat transfer load under steady heat transfer conditions by analyzing the formation mechanism of the convective heat transfer load under the air supply pattern of the nozzle. Then through the scale model test-bed of the University of Shanghai for Science and Technology, the model was validated and the calculation method for the convective heat transfer load of the stratified air-conditioner under the form of air supply at the outlet was obtained.
作者 王昕 朱卓 黄晨 马静思 槐晓强 WANG Xin;ZHU Zhuo;HUANG Chen;MA Jing-si;HUAI Xiao-qiang(University of Shanghai for Science and Technology,Shanghai 200093,China)
机构地区 上海理工大学
出处 《建筑节能》 CAS 2019年第2期60-63,共4页 BUILDING ENERGY EFFICIENCY
关键词 大空间分层空调 喷口送风 Gebhart-Block模型 对流热转移负荷 large space stratified air-conditioning ejector nozzle air supply Gebhart-Block model convective heat transfer
作者简介 王昕(1980),女,上海人,博士,副教授,硕士生导师,研究方向:大空间建筑室内热环境及节能研究(wangxinshiyun@126.com)。
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