Parametric Numerical Analysis of β -Type Stirling Engine

George-Rafael Domenikos (), Irene Koronaki, Theodoros Papingiotis and Panagiotis Bitsikas
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George-Rafael Domenikos: Laboratory of Applied Thermodynamics, Mechanical Engineering School, National Technical University of Athens, Heroon Polytecheiou 9, 15780 Zografou, Athens, Greece
Irene Koronaki: Laboratory of Applied Thermodynamics, Mechanical Engineering School, National Technical University of Athens, Heroon Polytecheiou 9, 15780 Zografou, Athens, Greece
Theodoros Papingiotis: Laboratory of Applied Thermodynamics, Mechanical Engineering School, National Technical University of Athens, Heroon Polytecheiou 9, 15780 Zografou, Athens, Greece
Panagiotis Bitsikas: Laboratory of Applied Thermodynamics, Mechanical Engineering School, National Technical University of Athens, Heroon Polytecheiou 9, 15780 Zografou, Athens, Greece

Energies, 2023, vol. 16, issue 18, 1-14

Abstract: This paper presents a parametric analysis of a β -type Stirling engine, focusing on the impact of various rotational speeds. The investigation employs a three-dimensional computational fluid analysis model. The study places emphasis on monitoring and understanding the temperature variations across the primary components of the engine, including the regenerator, heater, and cooler. The full apparatus is designed and simulated, acquiring the results for its energy output and thermal behavior.Using this CFD model, parameterization optimization is presented, aiming to establish the best conditions for the engine and regenerator efficiencies. Utilizing the results of the behavior of the machine, a correlation between the Nusselt and Reynolds numbers with regard to the rotational speeds is produced, giving a further understanding of the conduct of the working medium in the system.

Keywords: Stirling; ? type; parametric analysis; simulation; CFD (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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