Model Based Tuning of Humidifying Processes with Transportation Lag |
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| Authors: | S Soundaravalli T K Radhakrishnan |
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| Affiliation: | Department of Chemical Engineering , National Institute of Technology , Tiruchirappalli, India |
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| Abstract: | Abstract A humidifying system with varying transportation lag was studied experimentally. Various models were tried and the system fitted a first order plus dead time model with an error of ±5%. The humidity was measured using an on‐line Yokogawa hygrometer. From the model parameters, various controllers, such as PI, Smith predictor, IMC, and IMC PID were analyzed using Matlab. The closed loop performance was studied for both regulator and servo problems. Based on rise time, settling time, and overshoot, the present study concludes that the IMC controller is best suited for this process. |
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| Keywords: | Humidifying process Transportation lag Modeling Smith compensator IMC IMC PID |
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