Simulation model for mesophilic anaerobic digestion heating system

Global interest to explore alternative sources of energy that are sustainable has prompted the increase in biogas production from anaerobic digestion. In this paper, the modelling and simulation of mesophilic anaerobic digestion heating system is presented. It uses models designed with Simulink/matlab to describe the different subsystems that constitute the heating system, such as tankless electric water heater, heat exchanger and anaerobic digestion process. The paper also shows the Simulink model for the heating system, as well as presented tables that indicate the temperature values when the current supplied to the tankless electric water heater and the flow rate were altered.