Optimization and energy integration of heat recovery and power generation system

Abstract A large quantity of waste gas from industrial processes can be used for steam and power generation. Thus, it is of great interest to define a strategy for these power generation systems to get improved performances and efficiency. Three detailed thermodynamic models of heat recovery and power generation from industrial waste gas specified as single-pressure, dual-pressure, and energy integration systems are presented; Meanwhile, impact factors such as steam parameters, pinch temperature difference, and fluctuation of waste gas source on power generating capacity and total site efficiency are comparable analyzed by adopting a thermodynamic analysis combined with pinch method. Also, a case study of energy integration which doubles the improving effect of power generation accompanied with considerable energy saving is performed on basis of fuel efficiency and exergy calculation. In particular, the hierarchical strategy of energy integration of the total site is proposed and exampled.

[1]  B. Reddy,et al.  Second law analysis of a waste heat recovery based power generation system , 2007 .

[2]  Petr Stehlík,et al.  Heat transfer as an important subject in waste-to-energy systems , 2007 .

[3]  Zhen Lu,et al.  Performance analysis and optimization of organic Rankine cycle (ORC) for waste heat recovery , 2007 .

[4]  Carlos A. Infante Ferreira,et al.  Pinch Analysis and Process Integration , 2016 .

[5]  Yongping Yang,et al.  Performance analysis of organic Rankine cycle based on location of heat transfer pinch point in evaporator , 2014 .

[6]  Yanxia Li,et al.  Process integration analysis and improved options for an MEA CO2 capture system based on the pinch analysis , 2015 .

[7]  Mamdouh A. Gadalla,et al.  A new graphical method for Pinch Analysis applications: Heat exchanger network retrofit and energy integration , 2015 .

[8]  Xiaohui Zhang,et al.  Condensing boiler applications in the process industry , 2012 .

[9]  George Papadakis,et al.  Low­grade heat conversion into power using organic Rankine cycles - A review of various applications , 2011 .

[10]  Lingen Chen,et al.  Thermodynamic analysis and optimization of an air Brayton cycle for recovering waste heat of blast furnace slag , 2015 .

[11]  A. Gupta,et al.  High Temperature Air Combustion: From Energy Conservation to Pollution Reduction , 2002 .

[12]  Marco Noro,et al.  Energy efficiency opportunities in the production process of cast iron foundries: An experience in Italy , 2015 .

[13]  Petr Stehlík,et al.  Contribution to advances in waste-to-energy technologies. , 2009 .

[14]  Santanu Bandyopadhyay,et al.  Fired heater integration into total site and multiple fired heater targeting , 2012 .

[15]  Sirko Ogriseck,et al.  Integration of Kalina cycle in a combined heat and power plant, a case study , 2009 .

[16]  K. Ashok Kumar,et al.  Second law analysis of a waste heat recovery steam generator , 2002 .

[17]  Jian Song,et al.  Thermodynamic analysis and performance optimization of an Organic Rankine Cycle (ORC) waste heat recovery system for marine diesel engines , 2015 .

[18]  Thokozani Majozi,et al.  Recovery of Flue Gas Energy in Heat-Integrated Gasification Combined Cycle (IGCC) Power Plants Using the Contact Economizer System , 2011 .

[19]  Meihong Wang,et al.  Study on heat integration of supercritical coal-fired power plant with post-combustion CO2 capture process through process simulation , 2015 .

[20]  Alessandro Franco,et al.  Combined cycle plant efficiency increase based on the optimization of the heat recovery steam generator operating parameters , 2002 .

[21]  Lingen Chen,et al.  Thermodynamic optimization opportunities for the recovery and utilization of residual energy and heat in China's iron and steel industry: A case study , 2015 .