Journal of the Korean Wood Science and Technology
- 제29권1호
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- Pages.9-15
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- 2001
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- 1017-0715(pISSN)
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- 2233-7180(eISSN)
침엽수 제재두께별 가열판 압체식 진공건조의 소요 에너지
Energy Consumption in Vacuum-Press Drying of Some Softwood Lumbers of Different Thicknesses
- Jung, Hee-Suk (College of Agriculture and Life Science, Seoul National University) ;
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Lee, Jun-Ho
(College of Agriculture and Life Science, Seoul National University) ;
- Kang, Wook (College of Agriculture and Life Science, Seoul National University) ;
- Lee, Nam-Ho (College of Agriculture, Chonbuk National University)
- 투고 : 2000.06.20
- 심사 : 2000.09.27
- 발행 : 2001.03.30
초록
침엽수 4수종(소나무, 잣나무, 낙엽송, 웨스턴 햄록)의 가열판 압체식 진공건조에서 소요되는 비에너지 곡선은 함수율 감소에 따라 서서히 증가, 거의 일정, 급속 증가 등 3단계의 증가 패턴을 나타내었고, 제재두께별 계산된 비에너지는 3cm 제재 0.483, 5cm 제재 0.649, 7cm 제재 0.814, 9cm 제재 0.977 및 11cm 제재 1.138kWh/kg로서 두께가 증가함에 따라 거의 직선적으로 증가하였고, 강한 건조스케줄을 적용한 비에너지는 약한 건조스케줄의 것보다 적었으며, 가열판 진공건조의 평균 비에너지는 0.712kWh/kg으로서 다른 건조법의 것보다 적었다.
Specific energy curves for water removal in vacuum-press drying of different thick softwoods of red pine (Pinus densiflora), white pine (Pinus koraiensis), larch (L. leptolepis) and Western hemlock (Tsuga heterophylla) were split into three sections: increased slowly, fairly constant, and increased rapidly. Calculated specific energy for 3, 5, 7, 9 and 11cm thick lumber was a value of 0.483, 0.649, 0.814, 0.977 and 1.138kWh/kg of water, respectively. Specific energy almost linearly increased as lumber thickness increased, and specific energy for severe schedule was less than that for mild schedule. Average specific energy was 0.712kWh/kg and vacuum-press drying consumed less energy as compared with any other drying methods.
키워드