Publications

Crumbler Waste to Energy Presentation

Application of Crumbler® Technology to Recovered Plastics and MSW for Chemical Recycling and Waste to Energy

Abstract  Crumbler® rotary-shear technology from Forest Concepts is the solution to produce high quality feedstocks. This short presentation explains some of our emerging work in applying this patent-protected technology to recovered plastics and MSW for chemical recycling and waste to energy.  About the Publication  Dooley, J. H. (2020).  Auburn, WA, Forest Concepts, LLC. Read the …

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Baling & Roundwood Hauling for Fireline and WUI Fuels Reduction Woody Biomass: Alternative to on-site Chipping

Baling & Roundwood Hauling for Fireline and WUI Fuels Reduction Woody Biomass

Abstract  In this 17-slide Powerpoint presentation, Jim Dooley explores the challenges of on-site chipping of fireline debris and woody biomass and proposes Forest Concepts’ patent-protected baling technology as a solution.  The presentation covers potential benefits such as labor and cost reduction. In addition, depictions of applications at test sites are included. About the Publication  Dooley, …

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Baler Testing

Moisture Content of Baled Forest and Urban Woody Biomass During Long-Term Open Storage

Abstract This article describes how the moisture content of baled woody biomass varied during long-term open-air storage under conditions in the Pacific Northwest region of the United States. Large rectangular bales of forest and urban biomass were produced beginning in August 2015 and periodically until June 2016. Weights were measured approximately monthly until the entire …

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Forest Concepts Staff with Baler

Work Element Time Study of a Prototype for Baling Forest Residual Biomass into Large Rectangular Bales

Abstract  The productivity of forest biomass collection equipment is highly dependent on site conditions, spatial distribution of biomass, operator skill, and functional design of the equipment used. A prototype woody biomass baler was used to produce large rectangular bales of woody biomass. Rectangular bales enable high payloads during transport and efficient storage at centralized processing …

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Baling Woody Residues

Conceptual Specification of Forest Utility Balers for Woody Biomass

Abstract  The forest utility modular woody biomass baler is designed to maximize recovery of forest residuals from small/remote/stranded landings, scattered roadside windrows and piles, thinnings from hand crews, and forest management prunings. The baler module is designed to be incorporated onto a wide range of undercarriages and prime movers. The baler module can be mounted …

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Large-Scale Baler

Conceptual Specification of Large-Bale Forest Residuals Balers

Abstract The large-bale modular woody biomass baler is designed to maximize daily production while baling previously piled logging slash, forest residuals, thinnings from hand crews, and forest management prunings. The baler is intended to be supported by an excavator-type grapple loader to feed biomass into the baler and handle bales produced much like a grinder …

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Biomass Baling

Conceptual Specification of Forest Residues Balers using the Appreciative Design Method

Abstract  Baling of fine forest residuals such as tops, branches, and thinnings is expected to reduce  he cost of collection, transport, and processing. Baling may enable economical access to currently stranded biomass resources that are inaccessible to large in-woods grinders and specialized chip hauling vehicles. The technical feasibility of baling logging slash branches and tops …

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Bighorn Biomass Baler in operation

Design of a Forest Residue Baler – Specification of Bale Dimensions

Abstract Specification of bale dimensions, configuration, and density are among the first decision decisions to be made for the design of a new class of forest biomass balers. The engineering team at Forest Concepts updated earlier work on baling of urban woody biomass to the context of forest residuals and the BRDI project. Revised functional …

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WoodStraw Erosion Control Mulch

Field Experience with Wood-Strand Erosion Control Mulch on Mine and Pipeline Projects

Abstract  Soil erosion is a significant risk during and after grading operations on mine and pipeline sites. A range of materials are commercially available to reduce the erosive effects of wind and/or rainfall, including agricultural straw, hydraulic mulches, and rolled erosion blankets. Each of the conventional materials have limitations sufficient enough that federal agencies supported …

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Wood chips in Crumbler

Woody Biomass Size Reduction with Selective Material Orientation

Abstract  Roundwood logs from forests and energy plantations must be chipped, ground, or otherwise comminuted into small particles prior to conversion to solid or liquid biofuels. Results & discussion: Rotary veneer followed by cross-grain shearing is demonstrated to be a novel and low energy consuming method for primary breakdown of logs into a raw material …

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