B3-FH5A ls according to orderrelated documentation Free Bevel-helical gear Reduction Box B3

Flender/Flender Gear Units/Bevel-helical gear Reduction Box B3

s that are currently in use are (.. tra ditional feedback DO control using PID loops) as it involves both measurement and control of the measured paramet er. APC generally relies on mo del of some sort .. ASIM model, model pred ictive multivariable algorithms 4-2 4.6.3 Replacing Existing Blowers with More Efficient Ones Module 1 has old Howden single stage centrifugal lowers with reported efficiency ranges of 6-8%. Recent advances in aeration technology have resulted in blowers that are more efficient than the single stage centrifugal blowers. The latest high speed turbo (such as the ABS turbo blowers installed for Module and rotary lobe Hybrid type blowers (.. Aerzens Delta Hybrid) are reported to have higher wire to air efficiencies in the range of 7-8%. These new blowers when coupled with good design to select the most optimal units to matc process airflow requirements as well as optimal aeration system design and control strategies, have be en reported to have much lower life cycle costs than the traditional conventional blower technologies .. positive displacement, single and multi-stage centrifugal. In view of this replacing the existing Module 1 conv entional single stage centrifugal blowers with the latest blowers with higher efficiency and lower life cycle costs has been considered as an option. For continuity it has been assumed in this study that the Module 1 blowers will be replaced with the same type ABS turbo blowers installed for Module 2. 4.6.4 Process Modelling and Simulation Advanced dynamic process modelling and simulation was applied to evaluate the identified aeration ECMs outlined above. Simulations were carried out using the BIOWIN TM simulation package. The advantages of applying advanced process modelling and simulation to evaluate aeration ECMs have already been discussed in Section 1.2.3. Baseline 2 data as well as data collected during the special sampling programs in June-August 2 and January-Fe br