EMERSON PROCESS MANAGEMENT POWER & WATER SOLUTIONS INC.
发明人:
XU CHENG
申请号：
GB20130017611
公开号：
GB2508491(A)
申请日:
2013.10.04
申请国别(地区):
英国
年份:
2014
代理人:
摘要：
A process characteristic parameter determination system uses a process model 410 and a tuning module 414 to accurately determine a value for a process characteristic parameter within a plant without measuring the process characteristic parameter directly. To do this the model predicts the value of a process variable based on an estimated value of the characteristic parameter, a difference unit 412 compares the predicted value of the process variable and a measured value of the process variable and the tuning module changes the estimated value of the characteristic parameter base on the difference. The system may operate on-line or while the process is running to automatically determine a correct value of the process characteristic parameter at any time during on-going operation of the process. The process characteristic parameter value, which may be a heat transfer coefficient value for a heat exchanger, can then be used to enable the determination of a more accurate simulation result and/or to make other on-line process decisions, such as process control decisions, process operational mode decisions or process maintenance decisions such as implementing a soot blowing operation.
