Design of optimum flexible heat exchanger networks for multiperiod process
نویسندگان
چکیده
منابع مشابه
Synthesis 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...
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The following paper presents a mathematical formulation for the synthesis of heat exchanger networks (HEN’s), taking into account different types of heat exchangers (HE’s) and several conditions of operation. The model is developed using a disjunctive formulation into a preexistent multiperiod model. The Multiperiod-Disjunctive-MINLP was tested in an academic example comparing the results with ...
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The last few decades have seen considerable research into the synthesis of optimal heat exchanger networks (HENs). Process integration has paved the way for designs that are optimal from the point of view of energy recovery. Subsequent optimization of net exchanger area in such designs results in a network that is optimal from the point of view of utility consumption and exchanger area. Of late...
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In this work, we apply a decomposition technique to address the multiperiod heat exchanger network synthesis. Each period corresponds to changes in operating conditions, i.e. inlet temperatures and heat capacity flowrates. The problem size grows quickly with the number of streams and the number of periods resulting in a large scale problem to solve. In order to reduce the problem to a manageabl...
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A low-level flexible-structure control is proposed for designing control systems capable of efficiently handling constraints on the manipulated variables of heat exchanger networks (HENs). Flexible-structure refers to the capability of the resulting control system to switch from one closed-loop structure to another in order to keep regulation, and low-level means that it can be configured in mo...
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ژورنال
عنوان ژورنال: Egyptian Journal of Petroleum
سال: 2012
ISSN: 1110-0621
DOI: 10.1016/j.ejpe.2012.11.007