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All Journal Infotekmesin Manufaktur: Publikasi Sub Rumpun Ilmu Keteknikan Industri Bulletin of Engineering Science, Technology and Industry
Bambang Hari Priyambodo
Universitas Gadjah Mada
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Mechanical Engineering

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COCONUT PLANTATION FIRES: A REVIEW OF DRIVERS, IMPACTS, AND MITIGATION STRATEGIES Felixtianus Eko Wismo Winarto; Diki Bima Prasetio; Bambang Hari Priyambodo
Bulletin of Engineering Science, Technology and Industry Vol. 4 No. 2 (2026): June
Publisher : PT. Radja Intercontinental Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.21338469

Abstract

Fires in coconut plantations, especially on tropical peatlands, cause serious environmental and economic problems. While most studies focus on oil palm, this literature review summarizes the causes, impacts, prevention methods, and restoration strategies specific to coconut plantations. The review shows that fires are mainly triggered by cheap land-clearing practices and the accumulation of dry wastes like husks and fronds, which become highly flammable during El Niño droughts and over-drainage. These fires cause direct palm mortality, reduce crop yields for up to three years, cause peat subsidence, and generate dangerous smoke haze that harms public health. To prevent these fires, strategies like proper water management, community involvement, and satellite or drone monitoring are essential. For post-fire recovery, maintaining the surviving coconut canopy and using coconut fiber as mulch offer cost-effective ways to restore soil and biodiversity. In conclusion, managing fires requires a combination of better waste management, water control, and active community participation.
Analisis Komparatif Metode Manufaktur Soft Pneumatic Actuator Berdasarkan Biaya, Waktu Fabrikasi, dan Karakteristik Mekanik Ilham Saputra; Irfan Bahiuddin; Bambang Hari Priyambodo; Efrem Olivio Gomes; Adhan Efendi
Infotekmesin Vol 17 No 2 (2026): Infotekmesin: Juli 2026
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/

Abstract

The rapid development of soft pneumatic actuators (SPAs) has driven a transition in manufacturing approaches from elastomer-based casting to additive manufacturing (AM). Although both methods have been widely adopted, systematic comparative studies to support manufacturing method selection remain limited. This study proposes a comparative evaluation framework to assess casting and additive manufacturing based on three key parameters: relative cost, fabrication time, and mechanical characteristics. The analysis was conducted through a structured literature review and semi-quantitative synthesis of 29 publications published between 2015 and 2025. The results indicate that casting provides lower material costs and superior structural homogeneity, whereas additive manufacturing offers greater design flexibility, more complex internal geometries, and higher production repeatability. The proposed evaluation framework provides a conceptual basis for selecting the most appropriate SPA manufacturing method according to application requirements, production scale, and available resources.
Effect of Coir Fiber and Rice Husk Ash on Mechanical and Burning-Rate Properties of Recycled HDPE Composites Rajendra Vian Pradiksa; Kaleb Priyanto; Kriswanto Kriswanto; Khoirul Huda; Martinus Heru Palmiyanto; Bambang Hari Priyambodo; Roy Aries Permana Tarigan; Deslana Avinda Krisna Putra
Manufaktur: Publikasi Sub Rumpun Ilmu Keteknikan Industri Vol. 4 No. 2 (2026): Manufaktur : Publikasi Sub Rumpun Ilmu
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/manufaktur.v4i2.1526

Abstract

Recycled high-density polyethylene (rHDPE) offers a sustainable alternative to virgin plastics, but repeated processing can degrade its mechanical properties, motivating reinforcement with natural fibers and fillers. This study investigated the combined effect of coir fiber and rice husk ash (RHA) on the mechanical and burning-rate characteristics of rHDPE composites using a two-stage experimental design. In Stage 1, coir fiber content (5, 10, and 15 vol.%) was varied to determine the optimum reinforcement level based on impact strength. In Stage 2, the selected optimum fiber content was combined with RHA (5 and 10 vol.%) to evaluate tensile strength and burning behavior, tested according to ASTM D638, ISO 179, and ASTM D635, respectively. Results showed that 10 vol.% coir fiber produced the highest impact strength (16.36 kJ/m²), while higher fiber loading reduced toughness due to agglomeration and void formation. The composite with 5 vol.% RHA exhibited superior tensile strength (10.46 ± 1.23 MPa), whereas 10 vol.% RHA improved ignition resistance, extending ignition time to 14 s. These findings demonstrate that alkali-treated coir fiber and RHA can enhance rHDPE performance, supporting the valorization of plastic and agricultural waste into sustainable composite materials.
Co-Authors Adhan Efendi Deslana Avinda Krisna Putra Diki Bima Prasetio Efrem Olivio Gomes Felixtianus Eko Wismo Winarto Ilham Saputra Irfan Bahiuddin Khoirul Huda Kriswanto Kriswanto Martinus Heru Palmiyanto Priyanto, Kaleb Rajendra Vian Pradiksa Roy Aries Permana Tarigan