Equilibrium Moisture Content of Wood Estimated Using the Climate Data of Japan

Saito, Shuetsu; Shida, Satoshi

doi:10.2488/jwrs.62.182

Cited by 12 publications

(7 citation statements)

References 1 publication

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“…6(a) shows the reference state (i.e, 𝜌 𝑠 = 𝜌 𝑟𝑒𝑓 𝑠 ) at 12% MC. Investigations from, e.g., Kadita (1961), Kufner (1978) and Gerhards (1982) support these results, i.e., with an increase in 𝜔 𝑠 the elastic moduli decrease to less than 90% of their corresponding reference values and vice versa. Fig.…”

Section: Influence Of Moisture Content On Elastic Modulimentioning

confidence: 84%

A model for multiphase moisture and heat transport below and above the saturation point of deformable and swelling wood fibers-II: Hygro-mechanical response

Mmari

Johannesson

2022

Applications in Engineering Science

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Section: Influence Of Moisture Content On Elastic Modulimentioning

confidence: 84%

A model for multiphase moisture and heat transport below and above the saturation point of deformable and swelling wood fibers-II: Hygro-mechanical response

Mmari

Johannesson

2022

Applications in Engineering Science

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“…At the same time, the moisture content was found to be higher without the roof than with the roof. The fact that the average equilibrium moisture content of wood in the test area at the experimental site is around 14% on a dry basis [22] indicates that this result was affected by precipitation rather than humidity. The moisture content of normal pellets increased significantly to over 100% on a dry basis, while the increase in moisture content of the torrefied pellets was lower than that of normal pellets.…”

Section: Without Roofmentioning

confidence: 94%

Water Resistance of Torrefied Wood Pellets Prepared by Two Methods

Yoshida¹,

Kuroda²,

Kamikawa³

et al. 2020

Preprint

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To examine the hydrophobicity of torrefied wood fuel, the water resistances of torrefied pellets prepared by two different methods were evaluated using exposure tests under indoor and outdoor conditions. Torrefied pellets from the xylem of Japanese cedar (Sugi, Cryptomeria japonica) and oak (Konara, Quercus serrata) were prepared by two methods: the torrefaction of wood chips followed by pelletization and the pelletization of wood chips followed by torrefaction. It was found that the pellets prepared by pelletization followed by torrefaction had much lower moisture levels than those prepared by the other method and they showed almost no change in diameter after an outdoor weathering test. These characteristics are unique and indicate that the pellets can be applied not only for industrial use but also for residential and commercial purposes.

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“…Thus, a condition above 16.5% MC is needed to be examined in the future. In Japan, the equilibrium MC is about 15% [23], and it decreases to 10-12% in an air-conditioned environment. Therefore, it was elucidated that a high NO 2 sorption ability is observed in the range of humidity in real-life situations.…”

Section: The Influence Of the Different Mcs On The No 2 Sorption Abilitymentioning

confidence: 99%

Influence of moisture content on NO2 sorption ability of cedar wood

et al. 2021

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This study examined the influence of moisture content (MC) on NO2 sorption ability of cedar (Cryptomeria japonica) wood using the specimens with different MCs. Four MC conditions were applied, namely 0%, 8.6%, 12.7% and 16.5%, based on the differences of bonding condition of water molecule in the wood substances. As a result, the NO2 sorption volume increased drastically due to the presence of water, and as the MC increased, the NO2 sorption volume increased slightly. The NO generation volume and nitric acid concentration in the specimens were evaluated after an aeration test, and it was strongly indicated that the NO2 reacted with water in the specimen, and that the NO generation volume increased as the content of multilayer adsorbed water increased. The nitric acid seemed to be formed by the reaction between NO2 and water, and it was then held in the specimen. Based on the NO2 sorption volume calculated using the NO generation volume, it was shown that the NO2 sorption after 12-h aeration was caused mainly by the reaction between NO2 and water. Furthermore, the presence of both water and extractives contributed to the NO2 sorption in the initial period, and the presence of water contributed greatly to the NO2 sorption over the long term.

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Equilibrium Moisture Content of Wood Estimated Using the Climate Data of Japan

Cited by 12 publications

References 1 publication

A model for multiphase moisture and heat transport below and above the saturation point of deformable and swelling wood fibers-II: Hygro-mechanical response

A model for multiphase moisture and heat transport below and above the saturation point of deformable and swelling wood fibers-II: Hygro-mechanical response

Water Resistance of Torrefied Wood Pellets Prepared by Two Methods

Influence of moisture content on NO2 sorption ability of cedar wood

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