SCI和EI收录∣中国化工学会会刊

Chin.J.Chem.Eng. ›› 2014, Vol. 22 ›› Issue (4): 455-468.DOI: 10.1061/S1004-9541(14)60054-9

• ENERGY, RESOURCES AND ENVIRONMENTAL TECHNOLOGY • Previous Articles     Next Articles

Integration of a Gas Fired Steam Power Plant with a Total Site Utility Using a New Cogeneration Targeting Procedure

Sajad Khamis Abadi1, Mohammad Hasan Khoshgoftar Manesh2, Marc A. Rosen3, Majid Amidpour4, Mohammad Hosein Hamedi4   

  1. 1 Department of Energy Engineering, Science and Research Branch, Islamic Azad University, Tehran 775-14515, Iran;
    2 Department of Mechanical Engineering, Faculty of Technology & Engineering, University of Qom, Qom 3716146611, Iran;
    3 Faculty of Engineering and Applied Science, University of Ontario Institute of Technology, Oshawa+1905-121-8668, Canada;
    4 Faculty of Mechanical Engineering, K. N. Toosi University of Technology, Tehran 19395-1999, Iran
  • Received:2012-11-05 Revised:2013-02-01 Online:2014-04-04 Published:2014-04-28

Integration of a Gas Fired Steam Power Plant with a Total Site Utility Using a New Cogeneration Targeting Procedure

Sajad Khamis Abadi1, Mohammad Hasan Khoshgoftar Manesh2, Marc A. Rosen3, Majid Amidpour4, Mohammad Hosein Hamedi4   

  1. 1 Department of Energy Engineering, Science and Research Branch, Islamic Azad University, Tehran 775-14515, Iran;
    2 Department of Mechanical Engineering, Faculty of Technology & Engineering, University of Qom, Qom 3716146611, Iran;
    3 Faculty of Engineering and Applied Science, University of Ontario Institute of Technology, Oshawa+1905-121-8668, Canada;
    4 Faculty of Mechanical Engineering, K. N. Toosi University of Technology, Tehran 19395-1999, Iran
  • 通讯作者: Majid Amidpour

Abstract: A steam power plant can work as a dual purpose plant for simultaneous production of steam and electrical power. In this paper we seek the optimum integration of a steam power plant as a source and a site utility system as a sink of steam and power. Estimation for the cogeneration potential prior to the design of a central utility system for site utility systems is vital to the targets for site fuel demand as well as heat and power production. In this regard, a new cogeneration targeting procedure is proposed for integration of a steam power plant and a site utility consisting of a process plant. The new methodology seeks the optimal integration based on a new cogeneration targeting scheme. In addition, a modified site utility grand composite curve (SUGCC) diagram is proposed and compared to the original SUGCC. A gas fired steam power plant and a process site utility is considered in a case study. The applicability of the developed procedure is tested against other design methods (STAR® and Thermoflex software) through a case study. The proposed method gives comparable results, and the targeting method is used for optimal integration of steam levels. Identifying optimal conditions of steam levels for integration is important in the design of utility systems, as the selection of steam levels in a steam power plant and site utility for integration greatly influences the potential for cogeneration and energy recovery. The integration of steam levels of the steam power plant and the site utility system in the case study demonstrates the usefulness of the method for reducing the overall energy consumption for the site.

Key words: integration, steam power plant, site utility, cogeneration, optimization

摘要: A steam power plant can work as a dual purpose plant for simultaneous production of steam and electrical power. In this paper we seek the optimum integration of a steam power plant as a source and a site utility system as a sink of steam and power. Estimation for the cogeneration potential prior to the design of a central utility system for site utility systems is vital to the targets for site fuel demand as well as heat and power production. In this regard, a new cogeneration targeting procedure is proposed for integration of a steam power plant and a site utility consisting of a process plant. The new methodology seeks the optimal integration based on a new cogeneration targeting scheme. In addition, a modified site utility grand composite curve (SUGCC) diagram is proposed and compared to the original SUGCC. A gas fired steam power plant and a process site utility is considered in a case study. The applicability of the developed procedure is tested against other design methods (STAR® and Thermoflex software) through a case study. The proposed method gives comparable results, and the targeting method is used for optimal integration of steam levels. Identifying optimal conditions of steam levels for integration is important in the design of utility systems, as the selection of steam levels in a steam power plant and site utility for integration greatly influences the potential for cogeneration and energy recovery. The integration of steam levels of the steam power plant and the site utility system in the case study demonstrates the usefulness of the method for reducing the overall energy consumption for the site.

关键词: integration, steam power plant, site utility, cogeneration, optimization