置换通风国内外研究及应用状况展望

详尽阐述了置换式通风的工作原理、技术特性以及置换式通风的国内外研究发展状况，介绍了置换通风系统中的热力分层过渡层厚度、热力分层高度以及垂直温度梯度等几个重要技术参数。分析给出了置换式通风在研究、开发中需注意的问题，并展望了国内置换式通风的发展前景，最后指出结合我国国情发展置换式通风的必要性。

Review and View on the Research and Application of Displacement Ventilation

In this paper, the principle and characteristics of displacement ventilation system were described, and the research tate in home and overseas was outlined. Some important parameters of displacement ventilation including thermal straticulatelevel, thickness of transition layer and vertical temperature grads were introduced. Examples in projects were provided,and developing prospect of this system was expected. At last, the necessity of developing the displacement ventilation systemin China was pointed out.