Maximum allowable volumetric flow rate of a single smoke exhaust inlet

Discusses the issue about article 4.6.14 of GB 51251-2017 Technical standard for smoke management system in buildings, that is, the maximum allowable volumetric flow rate of a single smoke exhaust inlet. Reviews the historical research on this issue, deduces the formula, and points out the available conditions and precautions. Performs a tentative analysis and proposes some preliminary suggestions for some problems that have not been completely clarified at present.