Abstract
Temperature is one of the essential factors for bacterial growth in milk. The higher the temperature, the faster the growth of bacteria. It is empirically proven that the bacteria will stop growing at the temperature of about 4°C. In this research, continuous milk cooling process was simulated and then controlled by using Proportional - Integral (PI) feedback control system. The regulatory performance of the two different tuning methods were then analyzed (i.e Tyreus - Luybean and Hagglund – Astorm). Their SSE (sum squared of errors) were compared. It was found that Tyreus – Luyben method gave better regulatory performance than Hagglund – Astorm.
Highlights
It is empirically proven that the bacteria will stop growing at the temperature of about 4 ̊C
Proportional Integral (PI) controllers were the most commonly used form of Proportional Integral Derivative (PID) controllers, accounting for over 90% of industrial PID applications
Feedback control system using Proportional - Integral (PI) controller has been applied for continuous milk cooling process
Summary
Series: Materials Science and Engineering 703 (2019) 012004 doi:10.1088/1757-899X/703/1/012004. Regulatory performance of two different tuning methods for milk cooling control system. Chemical Engineering Department, University of Surabaya, Jl.Raya Kalirungkut, Surabaya, Indonesia, 60293
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