Combined Timber Drying Method

Goreshnev, M.; Казарин, А. Н.; Лопатин, В. В.; Sekisov, F. G.; Smerdov, O. V.

doi:10.1007/s10891-013-0838-7

Cited by 11 publications

(7 citation statements)

References 1 publication

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“…Recently, interest in microwave drying of solid wood has increased. One of the works [11] for drying wood in the installation proposes to use a combined principle of operation, including convective and dielectric heating.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Uniform largesized lumber drying system using mw radiation and basing on a singlewire E00 wave energy transmission line

Ritter

Kismereshkin

Cieślik

et al. 2020

EEJET

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

Uniform largesized lumber drying system using mw radiation and basing on a singlewire E00 wave energy transmission line

Ritter

Kismereshkin

Cieślik

et al. 2020

EEJET

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“…With the progress in the chemical industry, the fire retardant agents have been developed that, depending on the class and intensity of fire, partially or completely prevent the ignition of the processed surfaces [24][25][26]. The fire-proof efficiency is determined on the mass losses of material processed with fire retardant under normal study conditions.…”

Section: Introductionmentioning

confidence: 99%

“…The most commonly used methods to evaluate the fire retardant performance of wood materials include thermogravimetric analysis, differential thermal analysis (DSC), cone calorimetry, lateral ignition and flame spread test (LIFT), and large scale calorimetry, such as the single burning item (SBI) test [25]. Some results in a study of fire retardant's effect on a wood flammability are presented in [2,[24][25][26][28][29][30]. Aseeva et al [2] emphasized the limited data in an experimental study of the effect of fire retardant coatings on the fire resistance rating of wood constructions, which confirms the relevance of work in this field.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of the Effect of Heat Flux on the Fire Behavior of Engineered Wood Samples

Касымов

Agafontsev

Perminov

et al. 2020

Fire

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This paper presents the experimental study results on the effect of heat flux emitted by a standard source on the charring and ignition characteristics of wood construction materials (plywood, chipboard, and oriented strand board) using infrared thermography (IRT) in the narrow spectral ranges of infrared wavelength. The time to ignition (TTI), charring rate and depth were obtained for the samples. In addition, the effect of several fire retardants on the charring rate and depth of the samples and TTI was analyzed. All fire retardants contribute to an increase in TTI, which confirms their main function—fire protection. However, the effect of fire retardants differs noticeably depending on the material. A new experimental technique is suggested, with the infrared imaging of the temperature distribution along the end of a sample under the heat flux effect on its frontal surface. The uniqueness of this approach consists in the registration of the entire process of ignition and combustion of the presented materials, which occurs in real time without contact with high spatial and temporal resolution. Using the infrared camera of the research class, it becomes possible to record the entire process from the occurrence of the temperature exposure region to the deep carbonized crater in the body of the material. The results can serve as additional recommendations in the development of fire hazard testing methods for construction materials and fire retardants.

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“…Lumber drying is an essential and power-consuming procedure in wooden products manufacturing. The cost of lumber drying amounts to 30% of the total cost of dry sawn lumber (Goreshnev et al 2013). Convective kiln drying is globally and widely applied due to its simple operation and low cost.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of commercial-scale radio-frequency/ vacuum (RF/V) drying for hardwood lumber

Liu

Zhang

Jiang

et al. 2019

BioRes

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Two runs of commercial-scale radio-frequency/vacuum (RF/V) drying for maple hardwood were performed to explore the practical technology and its drying characteristics. The results revealed that the power density was a prerequisite for the drying schedule development. The drying time and in-process moisture content (MC) were evaluated by the calculated amount of dehydration at 1% MC removal. The drying defects, such as checks, bowing, and twist, and MC variation met the requirements of GB/T 6491 (2012). The drying rate of run 2 increased 22% after the drying schedule modification. The dehydration capacity was affected by the temperature, which first increased fast as the wood temperature increased to the boiling point and then increased more slowly after that point. The dehydration capacity was also associated with the initial lumber MC. Approximately 30% of the total energy maintained the chamber vacuum and approximately 70% was used for RF heating for both runs. The overall specific energy for water removal during RF/V drying had a competitive advantage compared with conventional kiln drying. The energy conversion efficiency of both runs was low at 50% during the warming stage, and increased to 80% and 90% for Run 1 and Run 2, respectively, during the drying stage.

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Combined Timber Drying Method

Cited by 11 publications

References 1 publication

Uniform largesized lumber drying system using mw radiation and basing on a singlewire E00 wave energy transmission line

Uniform largesized lumber drying system using mw radiation and basing on a singlewire E00 wave energy transmission line

Experimental Investigation of the Effect of Heat Flux on the Fire Behavior of Engineered Wood Samples

Characteristics of commercial-scale radio-frequency/ vacuum (RF/V) drying for hardwood lumber

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Combined Timber Drying Method

Cited by 11 publications

References 1 publication

Uniform large­sized lumber drying system using mw radiation and basing on a single­wire E00 wave energy transmission line

Uniform large­sized lumber drying system using mw radiation and basing on a single­wire E00 wave energy transmission line

Experimental Investigation of the Effect of Heat Flux on the Fire Behavior of Engineered Wood Samples

Characteristics of commercial-scale radio-frequency/ vacuum (RF/V) drying for hardwood lumber

Contact Info

Product

Resources

About

Uniform largesized lumber drying system using mw radiation and basing on a singlewire E00 wave energy transmission line

Uniform largesized lumber drying system using mw radiation and basing on a singlewire E00 wave energy transmission line