Dynamic Study and PI Control of Milk Cooling Process

The background of this research is to understand the operation process, which main goal developing process model. This model often used for operator training, design, safety system analysis, or control design. dynamic milk cooling from 36˚C 4˚C using chilled water available at 2˚C was performed. Chilled maintained a constant temperature by refrigerant unit. being investigated Packo brand tank belonging KUD SAE Pujon (Malang - Indonesia). A fundamental heat balance method derive model, leading first-order transfer function process. For 2-hr gain and time values are 1.00 42.3548 mins, respectively. Heat then extended continuous processes so that its could also be obtained. study simulated behavior batch processes. Process Identification via input-output data introduced obtained identification toolbox very useful in control, such as determining tuning parameters Ziegler-Nichol Proportional-Integral control. However, small delay required first order without Ziegler Nichol cannot implemented. Further may include other methods, ARX, ARMAX, Output-Error, Box Jenkins etc., implementing advanced cooling.