Optimising entire lifetime economy of heat exchanger networks

被引：42

作者：

Nemet, Andreja ^{[1
]}

Klemes, Jiri Jaromir ^{[2
]}

Kravanja, Zdravko ^{[1
]}

机构：

[1] Univ Maribor, Fac Chem & Chem Engn, SLO-2000 Maribor, Slovenia

[2] Univ Pannonia, Fac Informat Technol FIT, Res Inst Chem & Proc Engn MUKKI, Ctr Proc Integrat & Intensificat CPI2, H-8200 Veszprem, Hungary

来源：

ENERGY | 2013年 / 57卷

关键词：

Heat Exchanger Networks (HENs); Multi-period optimisation; Utility prices forecast; Extension of HEN design; Incremental Net Present Value; Certainty Equivalent; STOCHASTIC OPTIMIZATION; GLOBAL OPTIMIZATION; GENERALIZED-METHOD; HEN SYNTHESIS; COST; DESIGN; MODELS;

D O I：

10.1016/j.energy.2013.02.046

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This contribution presents an optimisation methodology for a Heat Exchanger Network (HEN) design over its entire lifespan. Consideration of fluctuating energy prices is essential for achieving an optimal HEN design. The objective function presents a trade-off between investment and operating costs. Accounting for higher energy prices supports greater investments compared to solutions obtained with current prices. However, due to the uncertainty of utility prices' forecasts, retrofit with the extension of HEN regarding the lifespan, will usually be the future strategy. As there can be various designs featuring similar initial investments, the objective is to identify one design that will be the most suitable for effective future extensions, preferably with low sensitivity to energy price fluctuations. These observations resulted in development of a stochastic multi-period mixed-integer nonlinear programming (MINLP) model for the synthesis of HEN designs, with extensions accounting for future energy prices. The objective of this work was to maximise both the Expected Net Present Value with no risk assessment performed, and the Certainty Equivalent with risk assessment regarding future utility prices and investment. The results obtained indicate that when applying the proposed approach, a design with improved economic performance could be obtained, especially when compared with Total Annual Cost. (c) 2013 Elsevier Ltd. All rights reserved.

引用

页码：222 / 235

页数：14

共 23 条

[11] A generalized method for HEN synthesis using stochastic optimization - II. The synthesis of cost-optimal networks [J].

Lewin, DR .

COMPUTERS & CHEMICAL ENGINEERING, 1998, 22 (10) :1387-1405

[12]

Linnhoff B., 1982, A user guide on process integration for the efficient use of Energy

[13] Modeling the operating costs for petroleum exploration and development projects [J].

Luo, Dongkun ;

Zhao, Xu .

ENERGY, 2012, 40 (01) :189-195

[14] Minimisation of a heat exchanger networks' cost over its lifetime [J].

Nemet, Andreja ;

Klemes, Jiri Jaromir ;

Kravanja, Zdravko .

ENERGY, 2012, 45 (01) :264-276

[15] Selection of the economic objective function for the optimization of process flow sheets [J].

Pintaric, Z. Novak ;

Kravanja, Z. .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2006, 45 (12) :4222-4232

[16]

Smith R, 2005, CHEM PROCESS DESIGN

[17] MINLP retrofit of heat exchanger networks comprising different exchanger types [J].

Sorsak, A ;

Kravanja, Z .

COMPUTERS & CHEMICAL ENGINEERING, 2004, 28 (1-2) :235-251

[18] Simultaneous MINLP synthesis of heat exchanger networks comprising different exchanger types [J].

Sorsak, A ;

Kravanja, Z .

COMPUTERS & CHEMICAL ENGINEERING, 2002, 26 (4-5) :599-615

[19] Simultaneous MINLP synthesis of heat and power integrated heat exchanger networks [J].

Sorsak, A ;

Kravanja, Z .

COMPUTERS & CHEMICAL ENGINEERING, 1999, 23 :S143-S147

[20]

Tarhan B., 2009, THESIS PITTSBURGH

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