Akademik Veri Yönetim Sistemi
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID, cilt.15, sa.5, ss.263-269, 1992 (SCI-Expanded, Scopus)
The governing equations of the regenerator of Stirling-cycle machines are derived by using the Lagrangian method in terms of the displacement of the displacer, so that time does not appear in the equations. A simplifying assumption is made that the heat transfer coefficient, based on the displacement of the displacer rather than time, is reasonably constant. As an approximation the pressure of the system and the mass of the gas in the expansion and compression volumes are assumed to be sawtooth functions of the displacement of the displacer. The governing equations of the regenerator are non-dimensionalized and a simplified iterative method is developed to solve the equations within certain assumptions. The equations, which include the pressure fluctuations due to flow reversals and longitudinal conduction, are solved numerically by a digital computer using a finite difference method and the results are presented.