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Exergoeconomic improvement of a complex cogeneration system integrated with a professional process simulator

机译：与专业过程模拟器集成的复杂热电联产系统的能效经济改进

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摘要

In this paper, the application of an iterative exergoeconomic methodology for improvement of thermal systems to a complex combined-cycle cogeneration plant is presented. The methodology integrates exer-goeconomics with a professional process simulator, and represents an alternative to conventional mathematical optimization techniques, because it reduces substantially the number of variables to be considered in the improvement process. By exploiting the computational power of a simulator, the integrated approach permits the optimization routine to ignore the variables associated with the thermody-namic equations, and thus to deal only with the economic equations and objective function. In addition, the methodology combines recent available exergoeconomic techniques with qualitative and quantitative criteria to identify only those decision variables, which matter for the improvement of the system. To demonstrate the strengths of the methodology, it is here applied to a 24-component cogeneration plant, which requires O(10~3) variables for its simulation. The results which are obtained, are compared to those reached using a conventional mathematical optimization procedure, also coupled to the process simulator. It is shown that, for engineering purposes, improvement of the system is often more cost effective and less time consuming than optimization of the system.
机译：在本文中，提出了一种基于迭代的人体工程学方法论来改善复杂联合循环热电厂的热力系统。该方法将执行经济学与专业的过程仿真器集成在一起，并代表了传统数学优化技术的替代方法，因为它大大减少了改进过程中要考虑的变量数量。通过利用模拟器的计算能力，集成方法允许优化例程忽略与热动力方程相关的变量，从而仅处理经济方程和目标函数。此外，该方法将最新可用的人类经济技术与定性和定量标准相结合，以仅识别那些对系统改进至关重要的决策变量。为了证明该方法的优势，本文将其应用于24组件热电联产工厂，该工厂需要O（10〜3）变量进行模拟。将获得的结果与使用常规数学优化程序获得的结果进行比较，该过程也与过程模拟器耦合。结果表明，出于工程目的，系统的改进通常比系统的优化更具成本效益，并且耗时更少。

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  • 来源
    《Energy Conversion & Management》 |2009年第8期|1955-1967|共13页
  • 作者

    Leonardo S. Vieira; Joao L. Donatelli; Manuel E. Cruz;

  • 作者单位

    Special Technologies Department, CEPEL - Electrical Energy Research Center, Av. Hum s, Cidade Universitaria, CP 68007, Rio de Janeiro, RJ 21944-970, Brazil;

    Department of Mechanical Engineering, UFES - Federal University of Espirito Santo, CP 019011, Vitoria, ES 29060-970, Brazil;

    Department of Mechanical Engineering, COPPE/UFRJ - Federal University of Rio de Janeiro, CP 68503, CT, Cidade Universitaria Rio de Janeiro, RJ 21945-970, Brazil;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    exergoeconomic improvement; complex thermal systems; exergy; optimization; process simulator; cogeneration;

    机译：改善经济状况;复杂的热力系统;火用优化;过程模拟器;热电联产;

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