Observation of Moisture Content in Wood at Non-Steady State

• 발행기관: 한국가구학회
• 저자명: Sung Wook HWANG Won Hee LEE
• 간행물 정보: 『한국가구학회지』제20권 제6호, 599~604쪽, 전체 6쪽
• 주제분류: 예술체육 > 미술
• 파일형태: PDF
• 발행일자: 2009.12.30

영문 초록

For the search of unified law of moisture movement in wood, moisture distribution of Korean red pine at non-steady state was investigated. We assume that the equilibrium moisture content (EMC) in wood depends on only temperature and relative humidity, it can be control in temperature and humidity chamber. If temperature is constant and humidity or vapor pressure is changed with sin curve shape at adequate cycles, EMC in chamber can be changed as well with sin-curve shape. The setup condition of a non-steady state in humidity control chambers is a constant temperature at 20℃and 15+10 sin ωt percent EMC. It can be found that the distribution of moisture in the specimen with varying relative humidity are illustrated various types. Moisture in wood is complicated and vibrates with the moisture sorption process. Considering a unified law of moisture movement in wood, it is considered that the most important fact is to search the method of precise diffusion & transfer coefficients.

목차

Ⅰ. INTRODUCTION

Ⅱ. EXPERIMENTAL

Ⅲ. RESULTS AND DISCUSSIONS

Ⅳ. CONCLUSION

REFERENCES

키워드

Non-steady state Moisture Distribution EMC Diffusion & transfer coefficient