OPEN ACCESS
Looking for an engine cycle with height output, multi-source of energy and less polluting pushes to reconsider the Stirling cycle. Several prototypes of engine were produced (Ford-Philips $4-215$, Ross yoke, GPU-3... etc. but their performances remain weak compared with other types of internal combustion engine. In order to increase their performances and to analyze their operations, a numerical program of simulation taking into account thermal and mechanical losses was developed and a study of optimization of the design parameters was elaborated The program which was applied to GPU-3 prototype of the General Motor gave results very close to the experimental results and leads to the optimization of the operating conditions. It also leads to the determination of the optimal values of the geometrical and physical design parameters of the prototype and to the increase of its performances as long as the working liquid pressure is maintained acceptable of the working liquid in the engine.
design, heat losses, optimizatiom, performance, thermal heat engine
[1] Giulio Lorenzini, Simone Moretti.' thermofluid dynamic performances numerical-constructal analysis of heat exchangers with standard and optimized profiles. Heat Technol 27, (2009), 141-145.
[2] Giorgio Baldinelli, Francesco Asdrubali, 'in fluence of air thermohygrometric properties on mechanical draft evaporative towers: a calculation method to predict effects in power plants and refrigerating absorption machines. Heat Technol 26, (2008), 69-75.
[3] Colmant T, Deledicque V, Squilbin O, Bonnet S, Alaphilippe M, Stouffs P, (2003), 'Quasi steady flow modelling of a small Stirling engine: comparison between calculated and measured instantaneous temperatures', Proceedings of the $11^{\text {th}}$ Int. Stirling Engine Conf., ISEC'2003, p. 128-136, Roma.
[4] Halit K, Huseyin S, Atilla K (2000), Manufacturing and Testing of a V-Type Stirling Engine, Turk J Engine Environ Sci, 24, 71-80.
[5] Park S.J, Hong Y.J, Kim H.B, Lee K.B (2003), An experimental study on the phase shift between piston and displacer in the Stirling cryocooler', Current Applied Physics 3, 449-455.
[6] Wang Jin T, Chen J (2002), Influence of several irreversible losses on the performance of a ferroelectric Stirling refrigeration-cycle' Applied energy 72, 495-511.
[7] Popescu G, Radcenco V, costea M, Feidt M (1996), Optimisation thermodynamique en temps fini du moteur de Stirling endo- et exo-irréversible, Rey Gén Therm, 35, 656-661.
[8] Salah El-Din M M (1999), "Thermodynamic optimization of irreversible solar heat engines', Renewable Energy 17, 183-190.
[9] Kolin I (1991), Stirling motor: history-theorypractice, Inter University Center, Dubrovnik.
[10] R. Gheith, F. Aloui, S. Ben Nasrallah,' study of beta type stirling engine - validity of the perfect gas assumption. Heat Technol 29, (2011), 157-164.
[11] C. Arapatsakos, 'the influence of natural gas in a four- stroke engine. Heat Technol 29, (2011), 83-90.
[12] Berchowitz D.M, Urieli I (1984), Stirling Cycle Engine Analysis, Adam Hilger Ltd, Bristol.
[13] A. Al-Shyyab, A.F. Khadrawi, 'hydrodynamics and thermal behaviors of fluid flow between two rotating micro-concentric cylinders Heat Technol 29, (2011), 75-82.
[14] A. Shanmuga Sundaram, R. Velraj, G. Suganya,' experimental investigation of transient heat transfer characteristics of a heat pipe. Heat Technol 27, (2009), 27-33.
[15] M. Ferdows, J.C. Crepeau, A. Postelnicu,' natural convection flow with wall temperature considering internal heat generation. Heat Technol 27, (2009), 27-33.