Investigation of A Low-Temperature Engine with External Heat Supply Operating According to The Stirling Thermal Cycle

The design of an external heat input motor (EHIM) that operates according to the Stirling cycle is considered. This engine can convert low-temperature heat from 40 to 100°C into mechanical energy and then into electricity. Such an engine is effective for off-grid power supply, especially in remote areas where access to electricity is difficult. We propose a modernization of the design by increasing the volume of the displacer, resulting in a lower operating temperature of the heater. Experimental results presented in the paper confirm the efficiency of this design in converting low-potential heat, which makes it promising for use in autonomous power systems.