Abstract: The invention relates to a method for converting thermal energy into mechanical work, which comprises imparting thermal energy to a working fluid in a tank. The working fluid in the vapor phase is fed into a device for converting energy into mechanical work. The vaporous working fluid is condensed and cyclically returned in the liquid phase to the tank. A catalytic additive in the form of a catalytic substance or a catalytic mixture of substances in an amount of 0.0000001 to 0.1 wt. % is introduced into the working fluid before or after starting the heating. The additive is a solid, its solution or suspension, or a liquid or its emulsion. The catalytic substance and the ratio of components of the mixture are chosen to prevent or promote decomposition of the substance or the mixture under the effect of high temperature and pressure according to current needs. The method enhances the efficiency of the process and expands its operational capabilities.

Abstract: The invention relates to a method for converting thermal energy into mechanical work, which comprises imparting thermal energy to a working fluid in a tank. The working fluid in the vapor phase is fed into a device for converting energy into mechanical work. The vaporous working fluid is condensed and cyclically returned in the liquid phase to the tank. A catalytic additive in the form of a catalytic substance or a catalytic mixture of substances in an amount of 0.0000001 to 0.1 wt. % is introduced into the working fluid before or after starting the heating. The additive is a solid, its solution or suspension, or a liquid or its emulsion. The catalytic substance and the ratio of components of the mixture are chosen to prevent or promote decomposition of the substance or the mixture under the effect of high temperature and pressure according to current needs. The method enhances the efficiency of the process and expands its operational capabilities.