Investigation on the Effect of Guaranteed Selling of Generated Electric Power and Other Effective Parameters on the Application of CHP System in Iranian Industries

Industrial sector is always recognized as one of the largest energy consumers in each country. Besides the high energy consumption of industrial sector, a significant amount of energy is lost due to inefficient use and old machines. Combined heat and power (CHP) systems have always been considered as an efficient system to reduce energy consumption and increase productivity in the industry. The aim of this paper is techno-economic analysis of application of CHP systems in a few samples of different types of almost high energy consumer industries, considering the different approaches, on which the electrical capacity of the system is designed. In this study, a combination of various parameters such as different types of prime movers (gas turbine or reciprocating engine), different types of fuel (natural gas and diesel fuel), and guaranteed selling of generated electric power (GSGEP) in different industries are considered. Finally, after determining the capacity of the simultaneous production system for the selected factories, some important economic indicators like net present value (NPV), simple payback periods (SPB), and levelized cost of electricity (LCOE) were considered by two coupled software, MATLAB and Excel. The results showed that in all scenarios, the use of reciprocating engine as the prime mover and natural gas as its fuel is the best choice to satisfy the techno-economical goals.