Muhammad Rafiq Yanhar, Suhardi Napid, Ahmad Bakhori, Abdul Haris Nasution, Wans Pahlevi
The study aims to design and fabricate blower impellers from a natural composite using empty oil palm bunch (EFB) powder as reinforcement and polyester resin as the matrix. Composites were produced with three EFB powder contents: 5%, 10%, and 15% by weight, using an open-mold casting process with BQTN 157 polyester resin and MEKPO catalyst. Mechanical characterization included tensile tests and impact tests to evaluate the effect of powder content on strength. The highest tensile strength (16.127 MPa) was obtained at 15% powder, while the highest elastic modulus (170.85 MPa) occurred at 10% powder; a drop in tensile strength at 10% was attributed to voids and air bubbles in the specimens. Impact testing showed that the 15% powder composite absorbed the greatest impact energy (31.201 J/cm²). Overall, increasing the proportion of EFB powder tended to improve both tensile and impact properties, indicating that EFB powder-reinforced composites are a viable, lightweight, and potentially low-cost alternative material for blower impellers.
@article{ddce7925-662c-44ec-88f8-58855596b2b9,
title={Natural Composites Reinforcement of Empty Bunch Palm Oil Powder for Blower Impellers Manufacturing },
author={Muhammad Rafiq Yanhar and Suhardi Napid and Ahmad Bakhori and Abdul Haris Nasution and Wans Pahlevi},
year={2026},
language={en}
}TY - JOUR TI - Natural Composites Reinforcement of Empty Bunch Palm Oil Powder for Blower Impellers Manufacturing AU - Muhammad Rafiq Yanhar AU - Suhardi Napid AU - Ahmad Bakhori AU - Abdul Haris Nasution AU - Wans Pahlevi PY - 2026 LA - en ER -
This paper addresses the challenge of assessing the feasibility of wind power plant projects at sites with insufficient or no local historic wind data
Roger Rumbu
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