Research Article

Performance of biomass pyrolysis stove from bus wood waste with varying donut briquette compaction pressures

Number: Advanced Online Publication Early Pub Date: October 21, 2026

Performance of biomass pyrolysis stove from bus wood waste with varying donut briquette compaction pressures

Abstract

Bus wood (Melaleuca viridiflora) is an underutilized sawmill residue in the Merauke region of South Papua. Converting this residue into densified fuel can support local biomass utilization while reducing unmanaged wood waste. This study evaluates the effect of donut-briquette compaction pressure (30, 40, and 50 bar) on the thermal behavior of a multilayer annular pyrolysis stove. The stove was instrumented with nine K-type thermocouples arranged at outer, middle, and inner radial positions across three vertical layers. Temperature profiles were recorded at 2 min intervals, and thermal output was assessed using Water Boiling Tests (WBTs; n = 16 per pressure). The inner-edge sensors produced the highest temperatures, with transient peaks approaching 900-950 °C, whereas middle-position sensors generally operated between about 400 and 750 °C. Outer-edge sensors remained cooler, although the upper-layer outer sensor reached approximately 450 °C. Mean WBT energy rates were 3.79 ± 0.23, 3.89 ± 0.17, and 3.92 ± 0.26 MJ h⁻¹ for 30, 40, and 50 bar, respectively. One-way ANOVA indicated no significant difference in mean energy rate among the three pressures (p = 0.215). The 40-bar condition showed the lowest coefficient of variation in WBT energy rate and a comparatively sustained intermediate-temperature response. These results indicate that compaction pressure affects temperature evolution and stability more strongly than mean useful energy rate within the tested range.

Keywords

Thanks

The Chancellor of Musamus University, Materials Lab, and Lab are acknowledged by the author. Support for this study was provided by the Biomass of Mechanical Engineering Education, Yogyakarta State University; Chem-Mix Pratama Lab, Yogyakarta Special Region; Termite Machine Engineering Workshop, Kulon Progo Regency, Yogyakarta Special Region; and PT. Surya Kencana Gemilang Teknik Workshop, Sleman Regency, Yogyakarta Special Region.

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Details

Primary Language

English

Subjects

Renewable Energy Resources

Journal Section

Research Article

Early Pub Date

October 21, 2026

Publication Date

-

Submission Date

May 11, 2026

Acceptance Date

October 7, 2026

Published in Issue

Year 2026 Number: Advanced Online Publication

APA
Parenden, D., Mujiyono, M., Nurhadiyanto, D., & Rusly, E. (2026). Performance of biomass pyrolysis stove from bus wood waste with varying donut briquette compaction pressures. Journal of Energy Systems, Advanced Online Publication, 195-208. https://doi.org/10.30521/jes.1948632
AMA
1.Parenden D, Mujiyono M, Nurhadiyanto D, Rusly E. Performance of biomass pyrolysis stove from bus wood waste with varying donut briquette compaction pressures. Journal of Energy Systems. 2026;(Advanced Online Publication):195-208. doi:10.30521/jes.1948632
Chicago
Parenden, Daniel, Mujiyono Mujiyono, Didik Nurhadiyanto, and Eddy Rusly. 2026. “Performance of Biomass Pyrolysis Stove from Bus Wood Waste With Varying Donut Briquette Compaction Pressures”. Journal of Energy Systems, no. Advanced Online Publication: 195-208. https://doi.org/10.30521/jes.1948632.
EndNote
Parenden D, Mujiyono M, Nurhadiyanto D, Rusly E (October 1, 2026) Performance of biomass pyrolysis stove from bus wood waste with varying donut briquette compaction pressures. Journal of Energy Systems Advanced Online Publication 195–208.
IEEE
[1]D. Parenden, M. Mujiyono, D. Nurhadiyanto, and E. Rusly, “Performance of biomass pyrolysis stove from bus wood waste with varying donut briquette compaction pressures”, Journal of Energy Systems, no. Advanced Online Publication, pp. 195–208, Oct. 2026, doi: 10.30521/jes.1948632.
ISNAD
Parenden, Daniel - Mujiyono, Mujiyono - Nurhadiyanto, Didik - Rusly, Eddy. “Performance of Biomass Pyrolysis Stove from Bus Wood Waste With Varying Donut Briquette Compaction Pressures”. Journal of Energy Systems. Advanced Online Publication (October 1, 2026): 195-208. https://doi.org/10.30521/jes.1948632.
JAMA
1.Parenden D, Mujiyono M, Nurhadiyanto D, Rusly E. Performance of biomass pyrolysis stove from bus wood waste with varying donut briquette compaction pressures. Journal of Energy Systems. 2026;:195–208.
MLA
Parenden, Daniel, et al. “Performance of Biomass Pyrolysis Stove from Bus Wood Waste With Varying Donut Briquette Compaction Pressures”. Journal of Energy Systems, no. Advanced Online Publication, Oct. 2026, pp. 195-08, doi:10.30521/jes.1948632.
Vancouver
1.Daniel Parenden, Mujiyono Mujiyono, Didik Nurhadiyanto, Eddy Rusly. Performance of biomass pyrolysis stove from bus wood waste with varying donut briquette compaction pressures. Journal of Energy Systems. 2026 Oct. 1;(Advanced Online Publication):195-208. doi:10.30521/jes.1948632

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