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Temperature control of a water tank
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| Department: | Chemical Engineering |
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2004-05-10
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We would like to rise water temperature with a heater. Oulet temperature must be equal to the set point temperature (80°C). Proportional, Proportional-Integral and Proportional-Integral-Derivative control are used and the respective results are compared. Inlet water temperature is equal to 20°C. Water flow is equal to 10 m3/hr. Tank volume is equal to 100 m3. Water density and heat capacity are 1 Kg/m3 and 4.19 KJ/(Kg °C). The heater and the temperature measurement device have a first order delay with a time constant equal to respectively TauQ and TauSens. Initial heat input and tank temperature are equal to 2500 KJ/hr and 20°C. This problem is solved using Berkeley-Madonna in Chemical Engineering Dynamics by J. Ingham et al. (second edition, Wiley-VCH, 2000). The solution using Mathematica is given in the present notebook.
The notebook was updated by the author, 10 May 2004
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Feedback control, Proportional control, Proportional-Integral Control, Proportional-Integral-Derivative Control, Temperature control of continuous flow tank, first order lag
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| Temperature-Control5.nb (191.3 KB) - Mathematica Notebook [for Mathematica 5.0] |
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