Multi-Objective Analysis of a CHP System Using Natural Gas and Biogas on the Prime Mover

• Main Authors: G. Valencia Ochoa, L. Obregon Quinones, Y. Cardenas
• Format: Article
• Language: English
• Published: AIDIC Servizi S.r.l. 2018-06-01
• Series: Chemical Engineering Transactions
• Online Access: https://www.cetjournal.it/index.php/cet/article/view/2961

With the aim of reducing operational costs and gas emissions in a Combined Heat and Power System (CHP), a type of biofuel is proposed as a product of a process using a biomass resource to replace other types of fossil fuels, and to be able to cover the average annual scale of power demand of 24 MWh/day from a metallurgical plant, and a thermal energy demand of 60 MWh/day. This study shows the behavior of gas emissions and economic analysis through the use of HOMER Pro software depending on the type of fuel selected. The proposed system consists of a set of electric generators (2MW in total) and a boiler with a cogenerative system connected to the gas outlet of the electric generators. The results of the simulation showed that the system working with natural gas presents a decrease of 5.66% in the annual operating cost concerning the system that works with biogas. However, the biogas system causes a 19.39% decrease in carbon dioxide production compared to the other systems.