生物质化学工程2025，Vol.59Issue(2)：39-47,9.DOI:10.3969/j.issn.1673-5854.2025.02.006
麻栎木材微波干燥中热/质变化行为及能耗特性
Heat and Mass Transfer Behavior and Energy Consumption Characteristics for Microwave Drying of Quercus acutissima Carruth Wood
摘要
Abstract
Using Quercus acutissima Carruth wood as the raw material,the heat and mass transfer behavior during the microwave drying process and the effects of microwave power and loading amount on the drying process,were investigated on a self-built microwave drying experimental platform.Combined with the kinetic theory,the kinetic characteristics of the microwave drying process of Q.acutissima Carruth wood were analyzed,and the energy consumption variation characteristics during the microwave drying process were explored.The results showed that the micro wave drying process of Q.acutissima Carruth wood could be divided into an initial increasing-temperature drying stage,middle constant-temperature drying stage and later increasing-temperature drying stage.The middle constant-temperature drying stage was the main stage for water removal.With the increase of microwave power,the drying speed is increased and the drying time is decreased due to the increasing energy absorbed by unit mass of water in the sample.The moving speed of internal water and the evaporation speed of surface water in the sample also increased,resulting in an accelerated drying rate and a shortened drying time.With the increase of loading capacity,the microwave density allocated to the unit mass of the sample gradually decreased,leading to an increase in the required dring time and a decrease in the drying rate.Compared with other kinetic equations,the Page kinetic model could more accurately describe the microwave drying process of Q.acutissima Carruth wood.When the loading capacity was 25 g,the required energy consumption of microwave drying of Q.acutissima Carruth wood was the lowest under the 700 W working condition.When the power was 500 W,the energy consumption of microwave drying of Q.acutissima Carruth wood decreased with an increase of loading capacity.关键词
麻栎/微波/干燥/传递过程/动力学/能耗Key words
Quercus acutissima Carruth/microwave/drying/transport processes/kinetics/energy consumption分类
化学工程引用本文复制引用
周泽峰,李晓航,潘龙..麻栎木材微波干燥中热/质变化行为及能耗特性[J].生物质化学工程,2025,59(2):39-47,9.基金项目
中国林业科学研究院生态保护与修复研究所基本科研业务费(CAFYBB2020SZ009) （CAFYBB2020SZ009）
