https://nova.newcastle.edu.au/vital/access/ /manager/Index en-au 5 Quantification of Resistance and Pressure Drop at High Temperature for Various Suction Pressures During Iron Ore Sintering https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:49302 100°C), and sintered bed. The sintering experiments were conducted in a lab-scale milli-pot (diameter 53 mm, height 500 mm) fitted with six taps and transient variations of pressure-drop in different zones were analysed. The resistance was quantified for the three zones by correlating pressure gradient in each zone (ΔP/L) with the specific kinetic energy of air (v2) during sintering. The high temperature zone was further divided into two sub-zones i.e. pre-melt reaction zone (PMRZ) and granule melting zone. The PMRZ was responsible for the highest pressure gradient in the bed during sintering due to the changes in bed structure and the much greater gas volumetric flow rate due to the high gas temperature. The PMRZ included various physico-chemical processes and it was observed that the resistance in the PMRZ was high at a high suction value across the bed. High productivity was observed for a high suction pressure. The sinter yield was influenced by holding time over 1200°C and an exponential growth function was proposed to estimate the sinter yield.]]> Wed 10 May 2023 16:57:16 AEST ]]> Analyses of pressure drop in high temperature zone during iron ore sintering https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:40259 1200 °C). To quantify the effect of the different process, sintering experiments were conducted in a milli-pot (diameter 53mm, height 500mm) with relatively high spatial resolution of pressure and temperature measurements. Overall, six taps were fitted in the milli-pot with two taps in the upper half at 100mm distance and four taps were fitted in lower half at 50mm distance for better spatial resolution. It was found that in region of maximum resistance, coke combustion contributed to more than 50% of the pressure drop when compared to other processes. The pressure drop contribution of the coke combustion region increased as the coke addition rate increased.]]> Fri 05 Aug 2022 10:46:50 AEST ]]>