The closed-cycle model numerical analysis of the impact of crank mechanism design on engine efficiency
 
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Faculty of Power and Aeronautical Engineering. Warsaw University of Technology
 
 
Publication date: 2017-02-01
 
 
Combustion Engines 2017,168(1), 153-160
 
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ABSTRACT
The research presents a review and comparison of different engine constructions. Investigated engines included crankshaft engines, barrel engine, opposed-piston engines and theoretical models to present possible variations of piston motion curves. The work comprises also detailed description of a numerical piston engine model which was created to determine the impact of the cycle parameters including described different piston motion curves on the engine efficiency. Developed model was equipped with Wiebe function to reflect a heat release during combustion event and Woschini’s correlation to simulate heat transfer between the gas and engine components.Various scenarios of selected engine constructions and different working conditions have been simulated and compared. Based on the results it was possible to determine the impact of different piston motion curves on the engine cycle process and present potential efficiency benefits.
 
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CITATIONS (2):
1.
Matching between mechanics and thermodynamics among 4 individual strokes in a 4-stroke engine by non-circular gear mechanism
Yuan-ping Zhao, Chang-hua He
Journal of Central South University
 
2.
Crankshaft geometry modification and strength simulations for a new design of diesel opposed-piston engine
Paweł Magryta, Konrad Pietrykowski
Combustion Engines
 
eISSN:2658-1442
ISSN:2300-9896
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