How to adjust for large fluctuations in polymerization temperature?
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How to adjust for large fluctuations in polymerization temperature? Adjust it through the control program? Should we adjust it through the formula instead?
I wonder whether the original poster works with the solid form or the suspended version. The reason for the large fluctuations in polymerization temperature is definitely a problem with the control system, and it is certainly possible to resolve this by adjusting the control system. The formula can only address the maximum heat release, but not the fluctuations.
Large fluctuations in polymerization temperature should be adjusted through the control system. This post was last edited by wang*neng on 2009-2-9 11:18.]
Large fluctuations in polymerization temperature should be adjusted through the control system, that is, by regulating the water flow to control the temperature. This post was last edited by wang*neng on 2009-2-9 11:18.]
PID reset for the jacket water and internal cooling tube water in DCS
The temperature is adjusted by regulating the flow rate of the circulating water.
Perhaps your polymerization reaction is too slow, causing the instrument to adjust excessively by opening the valves wider, resulting in over-cooling and a drop in temperature； When the valve is closed, cooling is insufficient, the temperature rises after a while, resulting in fluctuations. Of course, it is not ruled out that improper PID settings of the instrument controls could also cause control fluctuations.
DCS control allows the proportional time to be adjusted in order to regulate the control amplitude of the DCS