Research on drying characteristics of corn kernel based on COMSOL porous media model

Author:

Liu Dingtong1ORCID,Liu Zeyu2,Liu Shaodong23,Feng Tai12ORCID

Affiliation:

1. Clean Energy Lab, College of Energy Storage Technology Shandong University of Science and Technology Qingdao Shandong China

2. Zhongke Ruineng (Shandong)Technology Co., Ltd. Jinan Shandong China

3. Shandong Haohan seed industry Technology Co., Ltd. Jinan Shandong China

Abstract

AbstractDrying is an effective way to solve corn mildew. The heat and humidity flow interface in COMSOL Multiphysics heat transfer module was used to coupling fluid flow, water transport and heat transfer in multiple physical fields, and corn was used as a porous medium for simulation analysis, aiming to find the change rules of temperature field and humidity field. The research shows that the multi‐component model and method should be given priority in practice. The higher the hot air temperature is, the higher the average temperature of corn kernels is, and the faster the relative humidity decreases. The drying rate of corn is the highest at 348 K, and the hot air temperature should be appropriately increased at 333 K denaturation temperature. The higher the wind speed, the better the drying effect of corn kernels, but the improvement of drying effect will decrease with the increase of wind speed. Appropriately increase the wind speed between 2 and 4 m/s to improve the drying efficiency while avoiding excessive energy consumption. The mass transfer resistance of the pericarp cannot be ignored. The drying time of corn kernels closer to the hot air entrance is shorter, and the corn kernels close to the hot air exit are prone to humidity accumulation. Multiple hot air intakes should be set up to reduce the occurrence of uneven drying.Practical applicationsCorn is prone to mildew after harvest, resulting in resource waste and economic loss, so it is of great significance to dry corn efficiently. Corn is a typical porous medium, and the research on it can provide the basis for drying other porous medium grains. According to different components, the model of single granule and multi‐granule was established respectively. Use COMSOL Multiphysics simulation software to gain a deeper understanding of the complex physical processes involved in the drying process and provide valuable insights for industrial applications. COMSOL software was used to study the drying condition of corn under the synergic action of multiple physical fields, and effective drying strategies and measures to improve the structure of air drying silo were put forward.

Funder

Natural Science Foundation of Shandong Province

Publisher

Wiley

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3