大空间建筑侧送分层气流组织数值模拟与探讨

Numerical Simulation and Discussion on Stratified Air Distribution in Large Spaces

利用分层气流组织有利于大空间建筑的节能和热舒适。本文分析了大空间建筑的负荷特性,认为内部垂直温度分布对大空间得失热有着重要的影响,介绍了典型的侧送风实现分层气流组织的方法及其在大空间建筑中的应用,探讨了在夏季和冬季条件下的分层气流组织的实现方式,通过数值模拟研究了分层气流组织在两个季节中流场分布特点,为大空间建筑暖通系统的节能和室内热环境的改善提供依据。

It is pointed out that stratified air distribution is an energy efficient and thermal comfortable method for large spaces. Characteristics of heating and cooling load of large spaces are analyzed and vertical temperature distribution inside the space is considered to have great impact on heat gain or loss of the large space. The traditional sidewall air supply to achieve the stratified air distribution and its application to a large space is introduced. Realization of the stratified air distribution in winter and summer is discussed. Velocity and temperature distribution in the large space is investigated by numerical simulation.