Parameterization of the “alpha” type stirling engine mechanism for use in the timber industry

Abstract

This article discusses the parameterization of the crank-slider group of the Stirling engine to use in timber industry. Parametrization means involves into the equations a lot of variables: lengths of connecting rods of piston and displacer, positions of the axis of the cylinders The dependences of the piston and displacer movements are obtained for a free layout of the X-type Stirling engine mechanism. The boundary conditions of the lengths of the connecting rods are determined, taking into account the displacement of the cylinders’ axes in the plane perpendicular to the axis of the crankshaft. The resulting system of equations for the displacement of the piston from the displacement of the displacer will allow you to obtain a numerical model without modeling the crank and connecting rods, which will significantly reduce the resource intensity of numerical calculations. Further studies will aim to investigate the operation of the Stirling engine in compressor mode. This will allow determining the temperature difference between the cold and hot parts, which will allow you to indirectly evaluate the efficiency of operation in the engine mode. This study will eventually determine the optimal parameters of the designed engine, depending on the power and type of fuel used.