Optimal synthesis of multiperiod heat exchanger networks: A sequential approach
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...
متن کاملSynthesis of Multiperiod Heat Exchanger Networks Comprising Different Heat Exchanger Types
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 ...
متن کاملA Lagrangean Heuristic Approach for the Synthesis of Multiperiod Heat Exchanger Networks
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...
متن کاملOptimal synthesis of heat exchanger networks involving isothermal process streams
This paper proposes a new MINLP model for heat exchanger network synthesis that includes streams with phase change. The model considers every possible combination of process streams that may arise within a chemical process: streams with sensible heat, streams with latent heat, and streams with both latent and sensible heat. As part of the optimization strategy, the superstructure is modeled wit...
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 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: Applied Thermal Engineering
سال: 2017
ISSN: 1359-4311
DOI: 10.1016/j.applthermaleng.2016.10.003