Pressure build-up and wear analysis of tapered screw extruder biomass briquetting machines

Simple item page
dc.contributor.authorOrisaleye, J.I.
dc.contributor.authorOjolo, S.J.
dc.contributor.authorAjiboye, J.S.
dc.date.accessioned2020-11-17T07:40:07Z
dc.date.available2020-11-17T07:40:07Z
dc.date.issued2019-07-23
dc.descriptionStaff Publicationsen_US
dc.description.abstractThe design of efficient screw extruder biomass briquetting machines is important for the utilization of loose biomass materials from wood and agricultural wastes for the production of solid fuel. In this study, the effects of geometrical parameters (channel depth and helix angle) and operational parameters (friction coefficient, mass flow rate and speed) on the performance and design of the briquetting machine were investigated using a pressure model based on the plug flow theory. An analytical model, which utilizes the pressure model, was also developed from Archard’s wear law to investigate screw wear of biomass briquetting machines. The study on the pressure model showed that a shallow screw channel and small helix angle resulted in rapid pressure build-up along the screw extruder biomass briquetting machine. High friction at the barrel-material interface, low friction at the screw-material interface, high screw speed and high mass flow rate also resulted in rapid pressure build-up along the screw extruder biomass briquetting machine. The geometrical and operational parameters which resulted in rapid pressure build-up required shorter screw length for the briquetting machine. The wear model developed predicted the screw wear satisfactorily and showed that the screw speed and the choice of material for screw affected the screw wear. The wear volume increased exponentially towards the end of the screw where pressure is the highest. Redesigning the screw to select optimum geometry and speed with appropriate choice of material could improve the screw life and performance of the biomass briquetting machine.en_US
dc.description.sponsorshipNoneen_US
dc.identifier.citationOrisaleye, J. I., Ojolo,S.J. and Ajiboye, J.S. (2019). Pressure build-up and wear analysis of tapered screw extruder biomass briquetting machines. Agricultural Engineering International: CIGR Journal, 21(1): 122–133.en_US
dc.identifier.urihttp://www.cigrjournal.org
dc.identifier.urihttps://ir.unilag.edu.ng/handle/123456789/8937
dc.language.isoenen_US
dc.publisherAgricultural Engineering Internationalen_US
dc.relation.ispartofseriesAgricultural Engineering International: CIGR Journal;Vol.21(1)
dc.subjectScrew extruderen_US
dc.subjectBiomass briquetting machineen_US
dc.subjectPlug flow theoryen_US
dc.subjectArchard’s wear lawen_US
dc.subjectResearch Subject Categories::TECHNOLOGY::Engineering mechanicsen_US
dc.titlePressure build-up and wear analysis of tapered screw extruder biomass briquetting machinesen_US
dc.typeArticleen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Paper 6 Orisaleye et al Press Model CIGR 2019.pdf
Size:
734.21 KB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Mechanical Engineering-Scholarly Publications