Pharmaceutical Deploys Flow-based System to Control Centrifugal and Screw Air Compressors
A large pharmaceutical company needed huge flow rates of 30 psig air to aerate multiple fermentation processes which create food-grade materials. Flow could vary from about 12,000 scfm to 35,000 scfm. There were a variety of batch processes, mostly running independently. An hour-by-hour schedule for anticipated air flow is developed every afternoon for the next day. Based on that schedule, the boiler operators run the air compressors that can handle the load range for the whole day. In reality, the peak flow can be higher than anticipated.