Development, Validation, and Performance Evaluation of An Air-Driven Free-Piston Linear Expander Numerical Model
The free piston linear expander (FPLE) is an energy conversion device that converts mechanical energy into electric energy by using a linear electric machine (LEM) without emission. This research addresses the numerical modeling of a dual-piston air-driven FPLE constructed on the basis of the free p...
| Main Authors: | Raheem, A.T., Aziz, A.R.A., Zulkifli, S.A., Rahem, A.T., Ayandotun, W.B. |
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| Format: | Article |
| Institution: | Universiti Teknologi Petronas |
| Record Id / ISBN-0: | utp-eprints.33243 / |
| Published: |
Joint Journal of Novel Carbon Resource Sciences and Green Asia Strategy
2022
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| Online Access: |
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85129024516&doi=10.5109%2f4774218&partnerID=40&md5=4a0f39a20672215644e555356e275634 http://eprints.utp.edu.my/33243/ |
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| Summary: |
The free piston linear expander (FPLE) is an energy conversion device that converts mechanical energy into electric energy by using a linear electric machine (LEM) without emission. This research addresses the numerical modeling of a dual-piston air-driven FPLE constructed on the basis of the free piston engine linear generator (FPELG) concept. The model was built in MATLAB/Simulink. The simulation results were in good agreement with the experimental data. Where the in-cylinder pressure and displacement profiles attained errors of less than 10 (within the acceptable range). Then, the predicted results of the simulation model, namely, the displacement profile, in-cylinder pressure, piston velocity, and engine power results were analyzed. Findings indicate that intake pressure was the most important parameter for enhancing engine performance. The in-cylinder pressure increased by approximately 16 and 21.7 when the intake pressure was increased from 5 to 6 bar and from 6 to 7 bar, respectively. The piston velocity increased by approximately 12.3 when the intake pressure increased by 1 bar. Finally, engine power increased by approximately 26.5 and 30.6 when the intake pressure increased from 5 to 6 bar and from 6 to 7 bar, respectively. © 2022 Novel Carbon Resource Sciences. All rights reserved. |
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