Investigation of Cutter–Woodchip Contact Pressure in a New Biomass Comminution System

Lin, Lianshan; Lanning, David; Keiser, James R.; Qu, Jun

doi:10.3389/fenrg.2022.754811

Investigation of Cutter–Woodchip Contact Pressure in a New Biomass Comminution System

Journal Article · Mon Feb 14 00:00:00 EST 2022 · Frontiers in Energy Research

DOI:https://doi.org/10.3389/fenrg.2022.754811· OSTI ID:1845807

^[1]; Lanning, David ^[2]; ^[1]; ^[1]

Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Forest Concepts, Auburn, WA (United States)

A Crumbler^® rotary shear system was recently developed to process fuel-grade woodchips into feedstocks having more uniform particle sizes for improved flowability and higher thermochemical output yield than a traditional hammer mill. It represents a significant innovation in the state of the art of biomass comminution equipment. However, the milling unit has experienced significant abrasive wear of the feeding teeth and cutters when processing hard and dusty feedstocks, such as logging residue and corn stover. Here, we present initial simulation results from a finite-element stress analysis of the rotary shear, which is used to investigate the dynamics of interaction between the cutters and woodchips. This is the first step for optimizing the cutter design to improve the system lifetime and processing efficiency, thus reducing downtime and improving overall productivity.

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: Feedstock Conversion Interface Consortium (FCIC); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Bioenergy Technologies Office

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1845807

Journal Information:: Frontiers in Energy Research, Journal Name: Frontiers in Energy Research Vol. 10; ISSN 2296-598X

Publisher:: Frontiers Research FoundationCopyright Statement

Country of Publication:: United States

Language:: English

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42 ENGINEERING
biomass comminution
contact pressure
finite element simulation
tool wear
woodchip

Investigation of Cutter–Woodchip Contact Pressure in a New Biomass Comminution System

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