LAUSR

The drop in static gas pressure in the blast furnace is not equal to the pressure loss of the gas flux over its path from the tuyere to the furnace mouth. The Darcy–Weisbach or analogous equations cannot provide the theoretical basis in studying the blast furnace’s gas dynamics. The pressure loss of the gas flux over its path from the tuyere to the furnace mouth is better described by the Clapeyron–Mendeleev equation, which relates directly to the physical character of the pressure.