Effect of binder viscosity on physical, mechanical and thermal properties of burnt sawdust fuel briquettes

Name: S. Supattra

Organization : Rajamangala University of Technology Isan. Faculty of Engineering and Technology

Name: L. Taveesin

Organization : Rajamangala University of Technology Isan. Faculty of Engineering and Technology

Name: S. Siwakorn

Organization : Rajamangala University of Technology Isan. Faculty of Engineering and Technology

Name: J. Yuttachai

Organization : Phanomwan College of Technology. Faculty of Engineering

Name: T. Pornsawan

Organization : Rajamangala University of Technology Isan. Faculty of Engineering and Technology

Email : pornsawan.to@rmuti.ac.th

keyword: Viscosity (Fluid mechanics)

LCSH: Briquets (Fuel)

LCSH: Wood waste

LCSH: Fuel -- Mechanical properties

Abstract: This study investigated the characteristics of fuel briquettes composed of sawdust blended with a gurjun oil/water mixture at two different dilution ratios, specifically 60:40 and 70:30, each exhibiting different viscosities. For each dilution ratio, the diluted gurjun oil was mixed with burnt sawdust at six different sawdust-to-binder ratios. The primary focus of the study was to examine how the viscosity of the gurjun oil/water mixture and the binder-to-sawdust ratio influence the physical and thermal properties of the resulting briquettes. Fuel briquettes, measuring 4.1±0.1 cm in diameter and 10.4±1.2 cm in length, were produced using the cold screw compression technique. Key parameters, including density, compressive strength, heating value, and heat utilization efficiency, were evaluated. The results revealed that briquettes made with the higher viscosity gurjun oil/water mixture (70:30) exhibited superior physical, mechanical, and thermal properties compared to those made with the lower viscosity mixture (60:40). Notably, the briquette composed of 1 kg of the higher viscosity gurjun oil/water mixture and 7 kg of sawdust, which represented the highest sawdust content in the study, demonstrated the highest values in density (738.77 kg/m³), compressive strength (264.57 MPa), heating value (21.80 MJ/kg), and heat utilization efficiency (29.35%). These findings underscore the importance of binder viscosity in optimizing the quality of fuel briquettes and suggest that adjusting the sawdust-to-binder ratio can further enhance their performance.

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2024

Modified: 2025-08-13

Issued: 2025-08-13

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BibliograpyCitation : In Thai Society of Mechanical Engineers (TSME) and Kasetsart University (KU). The 14th TSME International Conference on Mechanical Engineering (TSME-ICoME14 2024) (AEC0018). Chonburi : Kasetsart University Sriracha Campus, 2024

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