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Showing 1 to 20 of 31 for “"Sawmills"”.
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Energy Intensity Determination in Wood Processing Sawmills
… an important aspect to wood products producing sawmills in the State of West Virginia. This research aims to facilitate the accurate measurement of electrical energy intensity in sawmills by means of energy analysis and diagnostics using various data acquisition devices on electrical motors used …
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Modeling the Adoption Decision Process of Future Scanning and Optimizing Technology in Hardwood Sawmills
A nation-wide survey of hardwood sawmills was conducted in the fall of 1999. The objectives of the survey were to determine the differences between adopters and non-adopters of scanning and optimizing technology, identify the company expectations of scanning and optimizing technology, and model the …
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A Simple Machine Vision System for Improving the Edging and Trimming Operations Performed in Hardwood Sawmills
… of sawn hardwoods annually. There are over 3,500 sawmills producing hardwood lumber in the Southeastern portion of the United States. Present trends such as increasing labor costs and limited supplies of high quality logs have forced hardwood lumber manufacturers to increase their efforts to …
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Assessment of Cross Laminated Timber Markets for Hardwood Lumber
… The second objective was to determine hardwood sawmills' current ability to produce structural grade lumber (SGHL) from low value logs as a product mix through a survey of hardwood lumber producers in the US. The third objective was to conduct a log yield study of SGHL production from yellow …
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Identifying Impact Factors on Successful Exporting of the United States Hardwood Industries to Mexico, Asia, and Europe
… markets. Finally, data from exporting hardwood sawmills to Mexico, Europe, and Asia were analyzed to determine what makes successful exporting to these markets. Factors including export distribution methods, relationship with export distribution partner, competitiveness, transportation, and …
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Impact of Ellipticality on Lumber Grade and Volume Recovery For Red Oak Logs
Hardwood sawmills must become more efficient to remain competitive. One way to increase efficiency and competitiveness is to increase the value or lumber volume produced from logs. While methods to maximize value and volume recovery exist for round logs, little information exists on how to maximize …
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Assessing Eastern White Pine Lumber Production and Use in the Eastern United States
… in all of those categories. This implies that sawmills need not emphasize these aspects as much as they have been, as they are less important to customers than sawmills may have believed. Conversely, primary manufacturers underestimated how highly secondary manufacturers valued on-time …
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Improving sawmill residue chip quality
… chip quality at high production southern pine Sawmills. A general economic analysis suggested that improving sawmill residue chip quality could be beneficial to both pulp and sawmills. Studies were conducted at several sawmills to determine methods of improving residue chip quality. The first …
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The clean development mechanism potential of a combined heat and power plant in Stellenbosch, South Africa
… of the roundwood volume harvested by commercial sawmills in South Africa is sold as timber. The rest is sold as timber by-products, utilised as fuel in sawmill boilers, or disposed of as waste res idues. This dissertation assesses the Clean Development Mechanism (CDM) potential of a proposed …
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A simulation and empirical study of cross-laminated timber from waney SA Pine timber
… far the largest expense item for South African sawmills. The efficiency of conversion of logs to sawn boards, or volume recovery, is consequently one of the main performance indicators for sawmills. The first objective of this study was to quantify the improvement in volume recovery possible …
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A multiple period combined optimization approach to sawmill production planning systems
… development of production planning systems for sawmills have focused on combined optimization type solutions in a steady state market environment. This thesis focuses on developing a multiple period production planning system which responds to expected changes in product value or market demand …
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An analysis of the capital budgeting sophistication of primary forest products firms in the Eastern United States
… financing methods and equipment needs of 1,818 sawmills and pallet manufacturers in the Eastern United States were studied. Information was gathered using a mail survey and 581 usable responses were received. It was found that discounted cash flow techniques have not been extensively adopted by …
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Design and testing of a sawdust dryer and a suspension sawdust burner
… process green sawdust at small to medium-sized sawmills and pallet mills. The sawdust burner was designed to be the heat source for the dryer and serve more general needs. A series of trials were conducted to develop the operating parameters of the dryer and measure the dryer's effectiveness at …
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Activity-based product costing in a hardwood sawmill through the use of discrete-event simulation
… Using discrete-event simulation, two hardwood sawmills were modeled and a series of experiments were conducted which would not have been feasible to conduct on the mill floors. Results from the simulation experiments illustrated that the activity-based and traditional cost accounting techniques …
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Testing of a counter-flow, stack-type sawdust dryer
… is designed to be used by small to medium sized sawmills and pallet mills. A series of 50 one hour or longer trials were conducted to develop operating parameters and test the sensitivity of the dryer performance to species, operating speed, throughput rate and Xi atmospheric conditions. …
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Modeling Factors that Influence Firm Performance in the Eastern Hardwood Lumber Manufacturing Industry
… to be related to the performance of hardwood sawmills. Firms who were backward integrated and firms who were both backward integrated and forward integrated performed significantly better than firms who were not vertically integrated or forward integrated. Higher performance scores were …
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Optimization of edging and trimming operations for red oak lumber
… maximum theoretical value was obtained in the sawmills studied. Edging and trimming optimizing systems equipped with scanners that provide only wane information have been successfully applied in softwood lumber manufacturing. The second part of this study investigated the lumber value recovery …
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The effect of hydraulic linear positioners on the production efficiency of a hardwood sawmill
… on the production efficiency of hardwood sawmills by an analysis of: 1) lumber grade yields; 2) log value; 3) sawing time; and 4) sawing variation attributed to the linear positioners, using Factory Grade No. 2 red oak logs sawn into lumber by full-infinite taper and conventional sawing …
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The effect of bandsaw stresses of blade stiffness and cutting accuracy
… used for primary breakdown in North American sawmills. The effect of bandsaw roll-tensioning and bandmill axial forces on the stresses in the blade, on the interaction of the blade with the bandmill and on the stiffness and cutting accuracy of the sawblade are examined. The stresses due to …
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Labor and social barter in an Appalachian community: Carroll County, Virginia, 1880s-1930s
… Appalachian mountains. Industrialization brought Sawmills and iron ore mining activity. Throughout this fifty-year period, Carroll County residents continued to labor at agricultural activity. Laborers began to work in the new industries while continuing to farm. Throughout this period, laborers …
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