Title of article :
Thermodynamic evaluation and optimization of a cogeneration energy system integrated with steam network
Author/Authors :
Amiri, Hamed Department of Energy Engineering - Faculty of Natural Resource and Environment - Science and Research - Islamic Azad University tehran branch, Tehran, Iran , Amidpour, Majid Department of Energy Systems Engineering - Faculty of Mechanical Engineering - K. N. Toosi University of Technology, Pardis St., Molasadra Ave., Vanak Sq., Tehran, Ira , Farhang Sotoodeh, Amir Energy and Environment Faculty - Niroo Research Institute (NRI), Tehran, Iran , Haji Molla Ali Kani, Alireza Department of Energy Engineering - Faculty of Natural Resource and Environment - Science and Research - Islamic Azad University tehran branch, Tehran, Iran
Abstract :
Abstract: Cogeneration energy systems are one of the most promising clean, efficient
technologies for satisfying industrial energy needs. In this study, a cogeneration system
consisting of a solid oxide fuel cell, a gasification unit, a gas turbine cycle, and a steam
network module is proposed. This topping system is integrated with a steam network that
provides steam for different utilities by recovering steam. Also, biomass –as renewable
energy– is used to address the problems of fossil fuels, such as scarcity of resources and
environmental issues. The system is evaluated from an energy perspective to ascertain the
feasibility of the system. Based on the results, the efficiency attained from this system is
54.35%. An optimization study based on a genetic algorithm is performed to find the best
conditions, which indicates an efficiency improvement to 65.06%. Moreover, a parametric
study on different steam network pressure levels is taken place, which shows the importance
of the VHP header on system performance.
Keywords :
Cogeneration , Steam network , SOFC , Biomass , Gasification , Gas turbine
Journal title :
Gas Processing Journal
