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工位空调气流组织与数值模拟

Airflow Distribution and Numerical Simulation of Task Air Conditioning System

【作者】 郑国忠

【导师】 荆有印;

【作者基本信息】 华北电力大学(河北) , 工程热物理, 2006, 硕士

【摘要】 论文以典型办公建筑的工位空调为研究对象,研究办公建筑中工位空调系统的气流组织和微环境评价。论文采用CFD模拟技术,研究工位空调工位送风方式及各送风参数,如工位送风速度、送风距离及送风口尺寸对办公区微环境及人体舒适性的影响。对不同送风方式及不同送风参数分别进行了模拟,得出了各种工况下的温度场和流场分布,并利用吹风感系数(DR)、不满意率(PPD)舒适度指标对工作区微环境进行评价,得出一些规律性的结论,为预测、分析、评价工位空调房间的气流分布奠定了基础。模拟结果表明工位空调可以实现良好的热环境,对工位空调系统设计具有一定的参考价值。

【Abstract】 Airflow distribution and microenvironment of task air conditioning in a typical modern office are studied. CFD methods are use to study microenvironment of workplace and thermal comfort of human influenced by system patterns and air supplying parameters (such as supplying velocity, size supply outlet size and air blowing distance). Temperature and velocity distribution of different task air conditioning systems and different air supplying parameters are obtained from numerical results. Indexes of DR and PPD are also applied to evaluate microenvironment of workplace. Conclussions obtained by simulation establish stable basis for predicting, analyzing and evaluating air distribution of task air condioning. Simulation results indicate that task air condioning can form good thermal environment for occupants and results are beneficial for designing task air conditioning.

  • 【分类号】TU831
  • 【被引频次】11
  • 【下载频次】342
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