System and method for controlling the Brix of a concentrated juice product
First Claim
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1. A method of controlling the Brix of a concentrated juice product comprising the steps of:
- passing juice through a multi-stage, multi-effect evaporator having juice and steam passing therethrough under vacuum to form a concentrated juice product;
predicting the results of a process change in disturbance variables on the vapor temperature in at least one of the effects of the evaporator; and
controlling the Brix of the concentrated juice product discharged from the evaporator based on the predicted results by controlling one of steam or juice flow into the evaporator.
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Abstract
A system and method of the present invention controls the Brix of a concentrated juice product. The results of a process change in disturbance variables on the vapor temperature in at least one of the effects of the multi-stage, multi-effect evaporator are predicted and the Brix of the concentrated juice product discharged from the evaporator is controlled based on the predicted results by controlling one of steam or juice fed into the evaporator.
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Citations
16 Claims
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1. A method of controlling the Brix of a concentrated juice product comprising the steps of:
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passing juice through a multi-stage, multi-effect evaporator having juice and steam passing therethrough under vacuum to form a concentrated juice product;
predicting the results of a process change in disturbance variables on the vapor temperature in at least one of the effects of the evaporator; and
controlling the Brix of the concentrated juice product discharged from the evaporator based on the predicted results by controlling one of steam or juice flow into the evaporator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of controlling the Brix of a concentrated juice product comprising the steps of:
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passing juice through a multi-stage, multi-effect evaporator having juice and steam passing therethrough under vacuum to form a concentrated juice product;
predicting the results of a process change in disturbance variables on the vapor temperature in at least one of the effects of the evaporator;
measuring the Brix of the concentrated juice product discharged from the evaporator and forming a predictive feedback model based on the measured Brix and the process change in disturbance variables; and
controlling the Brix of the concentrated juice product discharged from the evaporator based on the predicted results of a process change in disturbance variables and the predictive feedback model by controlling one of steam or juice flow into the evaporator. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification