Adding hydrogen fuel to the synthesis gas for the possibility of combustion in a turbine

For Russia, coal is the most affordable in terms of the number of reserves and its cost. However, its use is limited by the fuel's complex fuel treatment system, as well as the amount of solid waste and the high content of harmful substances in flue gases when using coal as fuel for thermal power plants. In addition, the use of coal in gas turbine installations is practically impossible and economically impractical. The existing methods of coal gasification make it possible to expand not only the scope of its application, but also to reduce the damage to the environment. However, the use of generator gas opens up new possibilities for using synthesis gas, which is a mixture of carbon monoxide and hydrogen with a low calorific value, and its production requires not only fuel treatment, but also the installation of additional expensive equipment. The article considers the mixing of hydrogen with synthesis gas to increase the heat of combustion of the fuel mixture leads to an increase in the efficiency of a gas turbine unit of the NK-16-18 ST type, expressed in reducing fuel consumption and increasing efficiency. The study was carried out on a mathematical model using an automated system for gas dynamic calculation of energy turbomachines (AS GDCPT). This study shows the possibility of increasing the energy characteristics of the generator gas by mixing hydrogen with it.