Investigation of ecological parameters of a gas turbine combustion chamber with steam injection for the floating production, storage, and offloading vessel

The article is dedicated to the investigation of the possibility of using the contact type gas turbine cycle with steam injection into the combustion chamber for the floating production, storage, and offloading vessel in order to increase the specific power and efficiency and reduce emissions of toxic components. A new approach is proposed, associated with the use of the two-stage injection of superheated steam into a gas turbine combustion chamber operating on associated gas. In this case, ecological steam is injected to the primary zone of the chamber to reduce emissions of nitrogen oxides, and power steam is injected to the dilution zone of the chamber in order to increase the power of the installation. This approach can be used in gas turbine engines of various modifications and manufacturers. The thermodynamic parameters of the thermal scheme of a gas–steam turbine operating on associated gas have been determined. Three-dimensional calculations of ecological parameters of a combustion chamber have been carried out, making it possible to determine the rational ratio of the ecological and power steam flow rates to minimize emissions of nitrogen oxides. The results obtained can be used for the modernization of existing and refinement of new samples of environmentally friendly fuel-burning devices.