FACTORS AFFECTING AIR DENSITY IN AQUEDUCT VENTILATION VIA STVOL

Abstract

In this article, we analyze the change in the ΔR value by improving the method for determining the real density change in the studied area and determining the aerodynamic resistance of the stvol perimeter to determine a more accurate average value of air density without making additional intermediate measurements between the measurement points. The results of the analysis were mainly considered compression of air under the influence of their own weight, depression of the head fan, deceleration of air velocity and hydrostatic compression of air.