Combined neural networks and predictive control for heat exchanger networks operation
نویسندگان
چکیده
منابع مشابه
Strategies for the Operation and Control of Heat Exchanger Networks
The continued high cost of energy has mandated that the Chemical Process Industries reduce operational and capital costs through process heat integration. However, the heat integration of process streams can lead to process structures that are difficult to operate and control. This paper addresses the control of heat exchanger networks and it shows the importance of dynamic simulations in the s...
متن کاملControl structure design for optimal operation of heat exchanger networks
When only single bypasses and utility duties are used as manipulations, optimal operation of heat exchanger networks (HENs) can be categorized as an active constraint control problem. This work suggests a simple split-range control scheme to implement the optimal operation. The control structure can be found by solving an integer-linear programming (ILP) problem with two objective functions pro...
متن کاملMinimum-Cost Operation in Heat-Exchanger Networks
This report revises the use of the maximum energy recovery criterion as objective function for real-time optimisation of heat-exchanger networks. Though in general this criterion leads to minimum total heat exchanged in the service units, it is not sufficient to achieve the actual minimum operation cost. This analysis discusses the characteristics of the network structure for which the last sta...
متن کاملOptimal operation of heat exchanger networks
The paper discusses optimal operation of a general heat exchanger network with given structure, heat exchanger areas and stream data including predefined disturbances. A formulation of the steady state optimization problem is developed, which is easily adapted to any heat exchanger network. Using this model periodically for optimization, the operating conditions that minimize utility cost are f...
متن کاملSynthesis of flexible heat exchanger networks for multiperiod operation
This paper addresses the problem of synthesizing heat exchanger networks that have the flexibility of coping with prespecified changes in flowrates, inlet temperatures and outlet temperatures in a finite sequence of time periods. A v multiperiod version of the mixed integer linear programming (MILP) transshipment model is presented which accounts for the changes in pinch points and utility requ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chemical Industry and Chemical Engineering Quarterly
سال: 2020
ISSN: 1451-9372,2217-7434
DOI: 10.2298/ciceq190530031c