| 木材微波加热厚度的确定 |
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| 引用本文： | 牟群英,李贤军,盛忠志.木材微波加热厚度的确定[J].中南林学院学报,2006,26(1):100-102,124. |
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| 作者姓名： | 牟群英 李贤军 盛忠志 |
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| 作者单位： | [1]中南林业科技大学理学院,湖南株州412006 [2]中南林业科技大学工业学院,湖南长沙410004 |
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| 摘 要： | 较之传统加热方法，微波加热是一种新型加热技术。在简述木材微波加热的机理上．阐述了影响术材介电特性的因素，指出其中木材古水率和温度是影响木材节电性质的两个最重要的因素．通过理论计算确定微波在木材中的穿透深度．计算表明：随着木材含水率和微波工作频率的增加，微波在木材中的穿透深度减少；当用频率为915MHz和2450MHz的微波加热或干燥具有高含水率的木材时，木材的最大厚度应分别控制在16cm和6cm左右．
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| 关 键 词： | 木材学 微波加热 木材厚度 机理 介电特性 |
| 文章编号： | 1000-2502（2006）01-0100-04 |
| 收稿时间： | 2005-05-11 |
| 修稿时间： | 2005-05-112005-11-10 |
Research on the Thickness of Wood Heated by Microwaves |
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| MOU Qun-ying, IA Xian-jun, SHENG Zhong-zhi.Research on the Thickness of Wood Heated by Microwaves[J].Journal of Central South Forestry University,2006,26(1):100-102,124. |
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| Authors: | MOU Qun-ying IA Xian-jun SHENG Zhong-zhi |
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| Institution: | 1. Sciences School of Central South University of Forestry and Technology, Changsha, 410004, Hunan, China; 2. Industry School of Central South University of Forestry and Technology, Changsha 410004, Hunan, China |
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| Abstract: | The mechanism of microwave heating and the factors to affect the dielectric properties of wood are introduced in this paper. The microwave penetration depth in wood is calculated firstly. The calculation shows that the microwave penetration depth in wood deereases with the increase of wood moisture content and microwave frequency. When wood with high moisture content is heated by microwaves with the frequency of 915 MHz and 2 450 MHz, the maximum thickness of wood should be about 16 cm and 6 cm, respee tively. |
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| Keywords: | wood science microwave heating wood thickness mechanism dieleetric properties |
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