基于灵敏度的通风系统稳定性分析

Stability analysis of ventilation system based on sensitivity

通风网络中任一分支风阻的变化都可能引起自身以及相关分支甚至网络中所有分支的流量变化,变化程度的度量指标为灵敏度。在对通风网络中分支灵敏度及其性质进行深入分析的基础上,给出了使每一条分支的风流保持稳定、整个通风网络保持稳定、两分支间稳定性比较和两通风网络稳定性比较的判别式,对于通风系统稳定性分析、日常通风管理具有重要意义。

Variation of air resistance of any branch in the network may cause the air quantity variations of the branch and correlative branches even the whole network, and the variation degree can be measured by an index, i.e. sensitivity. In the paper an in-depth analysis of ventilation network branches sensitivity and their character is performed, a serial of discriminants, such as the stability of every branch, stability of entire ventilation network, comparison of stability between two branches, comparison of stability between two ventilation networks are determined. These are important to stability analysis of ventilation system and daily ventilation management.