Thermodynamic assessment and optimisation of a biomass energy-based combined system for multigeneration

In this paper, an integrated power plant is designed for multigeneration and a parametric study is performed for integrated energy plant design. At the same time, optimisation studies of integrated energy plant with parametric assessment are carried out. The energetic and exergetic performances of integrated system have been computed as 51.28% and 46.67%. Total electricity and hydrogen production rate from investigated plant are 5,650.6 kW and 0.00436 kg/s. Moreover, the overall exergy destruction rate is found as 18,345 kW. Thermodynamic analysis data show that some parameters in the system are more effective on system efficiency and cost than other parameters. By using parametric study, these parameters are determined as biomass flow rate, gas turbine inlet temperature, gas turbine inlet pressure and air compressor compression ratio. These parameters are utilised as the decision variable in the optimisation study. Optimal points of the integrated energy system are shown on the Pareto front.