Novel MILP-based iterative method for the retrofit of heat exchanger networks with intensified heat transfer
Novel MILP-based iterative method for the retrofit of heat exchanger networks with intensified heat transfer
复制标题
DOI：
10.1016/j.compchemeng.2012.02.002
复制
发表时间：
2012-07
期刊：
影响因子：
--
通讯作者：
M. Pan;I. Bulatov;Robin Smith;Jin-Kuk Kim
中科院分区：
文献类型：
--
作者：
M. Pan;I. Bulatov;Robin Smith;Jin-Kuk Kim
强化传热是一种在不改变换热网络拓扑结构的前提下，通过强化传热来提高换热网络能量回收率的有效技术。本文提出了一种新的优化方法，用于改造情景下强化换热网络的综合，该方法采用简单的混合整数线性规划（MILP）模型，并提出了一种基于两个迭代循环的鲁棒求解策略。与现有的设计方法相比，新方法具有独特的优势，因为新的MILP模型可以有效地和显着地减少与现有的HEN改造配方中的非线性配方相关的计算困难。三个案例已经过测试，以证明所提出的方法，这需要很短的计算时间，以获得最佳的解决方案时，节能或利润是通过改造最大化的有效性和效率。
Heat transfer intensification is an effective technique for improving energy recovery in heat exchanger networks (HEN) by enhancing heat transfer without any network topology modifications. In this paper, a novel optimization method has been developed for the synthesis of intensified heat exchanger networks with a simple mixed integer linear programming (MILP) model under retrofit scenario, and a robust solution strategy based on two iteration loops has been proposed. The new method has distinctive advantages over existing design methods, as the new MILP model can effectively and significantly reduce computational difficulties associated with nonlinear formulation in existing HEN retrofit formulations. Three cases have been tested to demonstrate the validity and efficiency of the proposed approach, which requires very short computational times to obtain optimal solutions when energy saving or profit is to be maximised through retrofit.