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Wednesday, July 29, 2020 | History

2 edition of Bibliography of high-temperature kiln drying of lumber found in the catalog.

Bibliography of high-temperature kiln drying of lumber

David P. Lowery

Bibliography of high-temperature kiln drying of lumber

by David P. Lowery

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  • 26 Currently reading

Published by Intermountain Forest & Range Experiment Station, Forest Service, U.S. Dept. of Agriculture in Ogden, Utah .
Written in English

    Subjects:
  • Kilns.,
  • Lumber -- Drying.

  • Edition Notes

    Other titlesBibliography of high temperature kiln drying of lumber.
    StatementDavid P. Lowery and John P. Krier.
    SeriesU.S. Forest Service research paper INT -- 27.
    ContributionsKrier, John Peter, 1919-
    The Physical Object
    Pagination14 p. ;
    Number of Pages14
    ID Numbers
    Open LibraryOL17718148M

      Dry Kiln Maintenance. Are Dry Kilns high maintenance or low maintenance? Can good or bad kiln maintenance affect the quality of the lumber you dry? 60 Posts 14 Topics Last post by ingo wallocha in Re: Protecting Boilers on Janu , PM Stacking/Sorting Wood. Stacking lumber for drying is a critical part of producing quality lumber. A timber drying kiln is simply defined as 'a closed structure designed or adapted for the purpose of reducing the moisture content of timber and wood based products'. In NSW there are approximately 30 plants kiln drying timber. Principles of Kiln Drying; Measurement and Control of Temperature and Humidity; Kiln Schedules and Correct Drying Practice.

    Kiln Drying Your Own Wood. Kiln-dried lumber can be expensive. Therefore, woodworkers may want to dry their own wood to help assure they are getting the MC they want. One option is for woodworkers to air dry green wood. Air drying, however, can take several months and will generally not achieve a low enough MC without the additional step of. OPTIMIZING THE USE OF STEAM IN DRY KILNS William P. Moir, P.E. Steam Engineering Beaverton, OR The purpose of this presentation is to review the basic principals of steam generation and use to insure that we are maximizing the quantity and quality of dry lumber production from a facilities existing boiler and dry kilns.

    Bibliography of high-temperature kiln drying of lumber / David P. Lowery and John P. Krier. No previous drying experience or training is necessary. Instruction will include lectures and demonstrations. Wood moisture relations, kiln operation, lumber handling and storage, and drying schedule preparation will be emphasized as it relates to drying hardwood lumber. Topics to Be Covered. Air Dry .


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Bibliography of high-temperature kiln drying of lumber by David P. Lowery Download PDF EPUB FB2

Texts All Books All Texts latest This Just In Smithsonian Libraries FEDLINK Bibliography of high-temperature kiln drying of lumber Item Preview remove-circle Bibliography of high-temperature kiln drying of lumber by Lowery, David P; Krier, John Peter, Publication date Topics.

Bibliography of high-temperature kiln drying of lumber. Ogden, Utah: Intermountain Forest & Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, (OCoLC) "This book describes the fundamental basis of kiln-drying technology, enabling forest companies to improve their drying operations as high-quality timbers become scarcer and former wasteful.

At present, no single book adequately covers a basic understanding of wood book satisfies the need for such a work. It describes drying in practice.

This the fundamental basis of kiln-drying technology, to enable forest companies to imFrove their drying operations as high-quality timbers become scarcer and of yesteryear can no longer be tolerated.

Additional Physical Format: Online version: Lowery, David P. High-temperature drying of lumber. Ogden, Utah: Intermountain Forest & Range Experiment Station, Forest. the literature on high-temperature kiln-drying of hardwoods and to evalu-ate the advantages, problems, and prob-able cost of this type of drying in the United States.

High-temperature drying in current literature refers to drying wood at temperatures above ° F. ( ° C.). The drying may take place in the absence of air, but more common.

The subject of kiln drying lumber is probably one of the most hotly debated subjects in the forest industry today. It seems that there are as many theories about how lumber should be dried as there are people involved in kiln drying. This is an indication of the complex nature and the many factors that influence the removal of moisture from wood.

Kiln Schedules Hardwood schedules General hardwood schedules Moisture content basis Material considerations Recommended schedules for steam-heated kilns Assembly of a drying schedule Examples of assembled schedules Use of schedules for air-dried or predried lumber Modifications to general hardwood schedules   Conventional dry kilns commonly use initial drying temperatures, when the lumber is more than 50 percent MC, from to degrees F.

As the lumber. from lumber before it is placed in a kiln for final drying. In a predryer, lumber is stacked in a building where heat and humidity are controlled.

The temperature is usually kept around ºF (35ºC). The lumber is dried to 30% moisture content, and then placed in a kiln for final drying. Kiln drying is also hard on the substructure of the wood damaging it and does not last as long as air dried (slow kiln) wood.

Air dry/slow kiln — Takes much longer to be at a usable moisture content for building projects, but for turning is much more stable than green and not as hard on the chisels. Current thinking on high-temperature drying (temperatures exceeding °F) schedules for both softwoods and hardwoods is reflected in suggested high-temperature schedules for selected species.

Keywords: Lumber drying, hardwoods, softwoods, kiln drying, conventional-temperature ( °F) schedules, elevated-temperature ( °F) schedules, high-temperature (> °F) schedules.

ciples of kiln drying and then to show the application of these prin- ciples to the kiln drying of southern yellow pine lumber. Specifi- s Italic numbers in parentheses refer to " Literature cited," p. 4 The Kiln Drying Handbook (5) presents a full discussion of the general subject of kiln drying.

• Dry wood is much lighter in weight than wet wood. For many species, dry wood is nearly half the weight of wet wood. As an example, an "wheeler" can haul about BF of green oak without exceeding the load limits, but can h BF of dried lumber.

• Dry wood is nearly twice as strong and twice as stiff as green wood. drying and kiln drying hardwoods properly is contained in two Agriculture Handbooks: The “Dry Kiln Operator’s Manual”1 and “Air Dry-ing of Lumber.”2 This report does not attempt to repeat all details from those vol-umes. Rather, it presents new information on these methods and on accelerated air drying.

Economics of drying Components of plant Wood Drying Basics 8 Moisture content EMC Quality issues in wood drying 9 Stacking End checking or splitting Deterioration Sample kiln drier construction with explanatory notes 11 Non-grid, solar only operation Design principles of an on-grid, solar only operation Treatment schedules for solar dryer.

Larry Culpepper specializes in helping lumber mills optimize their existing dry kiln operations. With more than 23 years' experience in the forest products industry, he has worked as a Quality Supervisor for SPIB, a Lumber Drying Specialist for Wellons, Inc., and a Dry Kiln Specialist for Union Camp, where he was instrumental in developing the first computerized multi-zoned dry : Larry Culpepper, Larry G.

Culpepper. Amazon's Choice for kiln temperature controller Inkbird F Display PID Temperature Controllers Thermostat Heat Sink and Solid State Relay to ACV ITCVH 40DA SSR White Heat Sink K Probe out of 5 stars Robert McGuffy has headed up the wood-drying sequence at the Anderson-Tully Company's Vicksburg, Mississippi, hardwood-processing facility for decades.

At this complex, the largest of its kind in the U.S., Robert has the responsibility for air-drying, and then kiln-drying, about 70 million board feet of hardwood every year. Building a small-scale lumber dry kiln. There are many different kiln designs, including solar, dehumidification, direct or indirect fired and vacuum kilns.

For small operations, there is a large amount of information available on solar kiln design and operation. The kiln drying time for western hemlock at °C is 50% less than at 82°C at an air circulation rate of m/s.

The high temperature drying may lower the moisture content of the wood at equilibrium compared to conventional drying; however, this was not statistically significant.by Eric Meier.

Allowing lumber to passively sit at a given humidity level in order to obtain a desired EMC (air-drying) may be the simplest and least expensive method of seasoning wood, but it is also the very slowest. Drying times can vary significantly depending upon wood species, initial moisture level, lumber thickness, density, ambient conditions, and processing techniques.Recommended Citation.

Mackay, J.F.G., "High-temperature kiln-drying of northern Aspen 2- by 4-inch light framing lumber" (). Aspen by: 6.