@article{scholars17679,
           pages = {72--85},
       publisher = {Joint Journal of Novel Carbon Resource Sciences and Green Asia Strategy},
         journal = {Evergreen},
            year = {2022},
           title = {Development, Validation, and Performance Evaluation of An Air-Driven Free-Piston Linear Expander Numerical Model},
             doi = {10.5109/4774218},
          number = {1},
            note = {cited By 3},
          volume = {9},
             url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85129024516&doi=10.5109\%2f4774218&partnerID=40&md5=4a0f39a20672215644e555356e275634},
        abstract = {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. {\^A}{\copyright} 2022 Novel Carbon Resource Sciences. All rights reserved.},
            issn = {21890420},
          author = {Raheem, A. T. and Aziz, A. R. A. and Zulkifli, S. A. and Rahem, A. T. and Ayandotun, W. B.}
}