Displaying 141 - 160 of 188
Woodfin, Frederick, Stokes
ANNOTATION: Numerous harvesting machines were evaluated in a series of annual tests on stands of different ages. Several different machines were used to harvest sycamore research plots in south Alabama. The machines varied from manually operated devices…
Year: 1987
Type: Document
Source: FRAMES
Evaluation of roll designs on a roll-crusher/ crusher/splitter biomass harvester: test bench results
ANNOTATION: An alternative to conventional methods of processing small diameter trees for energy use is roll crushing/splitting. The concept involves the crushing and splitting of stems to expedite field drying and to facilitate handling. This method has…
Year: 1987
Type: Document
Source: FRAMES
Sirois, Ashmore
ANNOTATION: The principal focus of biomass harvesting in the past has been the use of chipping systems to reduce a wide variety of woody materials down to small pieces for easier handling and transporting. However, chipping systems have several short…
Year: 1986
Type: Document
Source: FRAMES
Stokes, Frederick, Curtin
ANNOTATION: Sycamore has high promise as a short-rotation fiber and energy species on better quality sites in the Southeastern United States. There have been few studies on operational harvesting systems for hardwood plantations. A continuous-speed…
Year: 1986
Type: Document
Source: FRAMES
Stokes, Sirois
ANNOTATION: A chipper-forwarder system offers an alternative for biomass harvesting. Components are a small feller buncher for felling and bunching, and a chipper-forwarder that chips at the pile and transports the chips to roadside. In a case study on a…
Year: 1986
Type: Document
Source: FRAMES
Watson, Sabo, Stokes
ANNOTATION: Productivity and cost per ton are predicted for two in-woods chippers (Norbark 20 and 27) where DBH. species groups, and moisture content are varied.
Year: 1986
Type: Document
Source: FRAMES
Watson, Stokes, Savelle
ANNOTATION: This study focuses on two harvesting methods for utilization of understory biomass that were tested against a conventional harvesting method to determine relative costs. The conventional harvesting method tested removed all pine 6 inches…
Year: 1986
Type: Document
Source: FRAMES
Clark, Saucier, McNab
ANNOTATION: This paper is the cooperative research with the USDA Forest Service, Southeastern Experiment Station and the Georgia Forestry Commission. Together they conducted a study to develop reliable weight and volume equations and tables for the…
Year: 1986
Type: Document
Source: FRAMES
Barnett, Sirois, Ashmore
ANNOTATION: A biomass crusher/splitter concept is presented as a possible means of maintaining rights-of-way or harvesting energy wood plantations. The conceptual system would cut, crush, and split small woody biomass leaving it in windrows for drying. A…
Year: 1986
Type: Document
Source: FRAMES
Sirois, Stokes
ANNOTATION: This paper presents an overview of sources and forms of raw materials for wood energy use and the types of machines available to convert them to the desired form for boiler fuel. Both the fuel source or raw material, and the combustion furnace…
Year: 1985
Type: Document
Source: FRAMES
Stokes, Watson, Savelle
ANNOTATION: Three harvesting methods were field tested in two stand types. Costs and stand utilization rates were developed for a conventional harvesting system, without energy wood recovery; a two-pass roundwood and energy wood system; and a one-pass…
Year: 1985
Type: Document
Source: FRAMES
Ince, Henley, Grantham, Hunt
ANNOTATION: The cost of harvesting and recovering round wood logs and whole-tree chips from small diameter lodgepole pine infested by mountain pine beetle was studied in the Blue Mountains of eastern Oregon in 1979. The average cost of producing chips was…
Year: 1984
Type: Document
Source: FRAMES
Eza, McMinn, Dress
ANNOTATION: The Wood Residue Distribution Simulator (WORDS) attempts to find a least-cost allocation of residues from local sources of supply to local sources of demand, given the cost of the materials, their distribution, and the distribution of demand.…
Year: 1984
Type: Document
Source: FRAMES
Kelsey, Shafizadeh
ANNOTATION: In the Northern Rocky Mountains, where dry or cold conditions predominate, woody residues remain sound without visual signs of decomposition for many years. The chemical composition of this weathered material does not change significantly and…
Year: 1981
Type: Document
Source: FRAMES
Kerstetter
ANNOTATION: This paper reviews the topic of biomass air gasifiers. The gasification process chemistry is outlined and the operating characteristics of two types of gasifiers are presented. A few typical applications are discussed and the economics for a…
Year: 1981
Type: Document
Source: FRAMES
Leicht
ANNOTATION: In 1978 the U.S. Forest Service initiated a National Wood Utilization and Wood Energy Application Program to focus attention on application of existing and developing technology. In this paper, the mission and goals of this program are…
Year: 1981
Type: Document
Source: FRAMES
Lowery
ANNOTATION: There is no inherent difference between the wood from dead trees and green trees. Solid wood product studies have indicated that dead trees can be used for lumber, houselogs, and posts and poles although the amount of usable lumber is usually…
Year: 1981
Type: Document
Source: FRAMES
Maloney
ANNOTATION: This paper will cover the definitions of the composition and composite materials, provide a brief history of this segment of the forest products industry, describe types of building materials now being produced or possible to produce, discuss…
Year: 1981
Type: Document
Source: FRAMES
Markley
ANNOTATION: This discussion examines some of the uses of low quality wood. The solid wood product families examined include composites, plywood, lumber, laminated lumber, and cedar products.
Year: 1981
Type: Document
Source: FRAMES
McMichael
ANNOTATION: The pulp raw material shortage in 1973 and 1974 provided incentives for using whole tree chips at a number of pulp mills in the United States. Since 1974 pulp raw materials supplies have returned to more acceptable levels. As a result, whole…
Year: 1981
Type: Document
Source: FRAMES
