Development and numerical simulation of a power plant with a closed-cycle gas turbine running on wood fuel

Abstract

The paper presents a number of original technical solutions for a mobile power plant based on a closed cycle gas turbine. The power plant is designed to operate on wood fuel in the conditions of timber warehouses, timber terminals and wood processing industries. The design of a heat generator using wood chips from production waste is proposed. Numerical modelling of the power plant in the SimInTech program was carried out. As a result of mathematical modelling, the main indicators of the power plant were determined. As a result of numerical experiments, the maximum electric power of the power plant was determined to be 1203 kW gross. The optimal initial pressure of the working fluid in the system is determined to be 0.52 MPa under the condition of maximum power. This power was recorded when using a turbine and compressor with a nominal frequency of 1000 Hz, helium as the working fluid of the turbine, combustion products of wood chips with a temperature of 1050 °C in the amount of 11 kg/s, and the use of evaporative cooling. The results obtained can be used in the development of solid fuel power plants with closed cycle gas turbines.