Free-Piston Engine Design and Evaluation with Different Compression Ratios

Free-piston heat engines are being examined by a number of international research groups as an option for conservative technology, as they are not limited by the movement of the crankshaft as in conventional engines. The free-piston engines are employed in applications like power generation using co...

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Bibliographic Details
Published in:INCAS bulletin 2021-09, Vol.13 (3), p.57-66
Main Authors: KIRUBADURAI, B., JEGADEESWARI, G., KANAGARAJA, K.
Format: Article
Language:English
Subjects:
Compression ratio
compression ratios
Compression tests
Computational fluid dynamics
Crankshafts
Cycle ratio
Cylinders
Design
Efficiency
Engine design
Fluid dynamics
Free-piston engines
Fuel cells
Generators
Heat engines
Heat transfer
heat transfer losses
Hydraulics
Piston engines
two stroke si engine
Vehicles
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Summary:Free-piston heat engines are being examined by a number of international research groups as an option for conservative technology, as they are not limited by the movement of the crankshaft as in conventional engines. The free-piston engines are employed in applications like power generation using conventional methods. The higher compression ratios provide higher cycle efficiencies and also boost in-cylinder temperatures increasing mechanical stress, pressures, and heat transfer losses. This paper presents different in-cylinder flows by computational fluid dynamics for various compression ratios ranges from 7 to 15 and estimates were made to find best compression ratio for the optimal engine operating performance and characteristic.
ISSN:2066-8201
2247-4528
DOI:10.13111/2066-8201.2021.13.3.5