摘要：Interplant Heat Integration using Heat Recovery Loop (HRL) is very different from intra-plant Heat Integration. As the heat sources and sinks are always separated in different regions, some additional factors should be focused on, i.e. capital cost of heat exchangers, installation cost of pumps and pipelines for long distance, and operation cost of pumping power and heat loss during the transportation. Based on economic criteria, this paper presents a stage-wise MINLP model for HRL designs considering the factors aforementioned. Unlike traditional heat exchanger networks (HENS), the flow rate of intermediate-fluid is considered as an important variable which results in a large complex, non-convex model. An efficient strategy is proposed for the problem by sequentially solving an MILP, an MINLP and a NLP. The distance plays a significant role in the design of HRL and it significantly affects the investment of pipelines. The optimum results show that the influence of pumps is relatively less. An industry case study is demonstrated to illustrate the efficiency of the strategy.

关键字：ENERGY SAVINGS TOTAL SITE PLANTS

ISSN号：1974-9791

卷、期、页：卷: 45 页: 67-72

发表日期：2015-01-01

期刊分区（SCI为中科院分区）：无

收录情况：CPCI-S（科技会议录索引）,国际学术会议论文集

发表期刊名称：Chemical Engineering Transactions

参与作者：张萍

通讯作者：常承林

第一作者：王彧斐,冯霄

论文类型：会议论文

论文概要：常承林,王彧斐,冯霄,张萍，Efficient Solution Strategy for Stage-wise MINLP Model of Interplant Heat Integration using Heat Recovery Loop，Chemical Engineering Transactions，2015，卷: 45 页: 67-72

论文题目：Efficient Solution Strategy for Stage-wise MINLP Model of Interplant Heat Integration using Heat Recovery Loop