Abstract
One of the problems of developing a Stirling engine design methodology for use in the timber industry is discussed. The methodology of the first stage of modeling the engine’s work process for substantiating optimal design parameters is developed and justified: modeling the reverse working cycle. To implement this stage, a simulation of convective heat transfer from the working fluid to the inner walls of the engine cylinders and from the outer walls of the cylinders to the ambient air was performed. It made possible to determine the reduced convective heat transfer coefficients for further use in modeling the reverse cycle: from 0 to 7.2 W / (m2°C) for the displacer cylinder and from 0 to 68 W / (m2°C) for the piston cylinder. At the same time, the reduction error in comparison with the results of numerical experiments does not exceed 1% in the temperature range under consideration. Keywords: timber industry complex, Stirling engine, design methodology, reduced convective heat transfer coefficient.
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