Optimal equipment arrangement of a total site for cogeneration of thermal and electrical energy by using exergoeconomic approach

Energy Reports

Marc A. Rosen¹  Mohammad Nikiyan²  Yaser Shokri²  Mehrangiz Ghazi²  Akbar Maleki³ 

[1] Corresponding author.;Department of Mechanical Engineering, College of Engineering, Takestan Branch, Islamic Azad University, Takestan, Iran;Faculty of Mechanical Engineering, Shahrood University of Technology, Shahrood, Iran;

关键词: Exergoeconomic analysis;    Exergy;    Cogeneration;    Total site utility;    Efficiency;   

DOI  :  

来源: DOAJ

【 摘 要 】

The optimal equipment arrangement for a system for cogeneration of thermal and electrical energy for a total site is determined with exergoeconomic analysis. A steam power plant can operate concurrently in a dual-use mode producing steam and electricity. It is important to know the potential for cogeneration before designing and optimizing a central utility system in order to establish on site fuel demand targets. In the current study, two case studies with different backpressure steam turbines arrangement are considered and, if extra power generation is needed, designs with a system of condensing and gas turbines are examined. The minimum exergy destruction rate, maximum exergy efficiency, minimum total capital cost rate and minimum exergy destruction cost rate for these arrangements are investigated with exergoeconomic analysis. Finally, selected backpressure steam turbines arrangement in conjunction with the gas turbine system are introduced for finding the optimum arrangement of the cogeneration system in the total site with an exergoeconomic approach.

【 授权许可】

Unknown