摘要
通过实验研究与数值模拟相结合的方法,研究了平房仓准低温储藏稻谷温度场的时空分布。通过对平房仓准低温储藏稻谷进行了为期14个月粮温实验,得到了稻谷温度场的演变规律;同时构建了准低温储藏稻谷温度场的数值模型,对其进行模拟,并与实验结果对比验证了数值模型的有效性;最后,利用本文模型对26个月内的稻谷温度场进行预测。研究表明:在为期14个月平房仓准低温储藏的实验过程中,稻谷的整体平均温度低于17℃,最高值是15.57℃、最低值是11.32℃;依据模型对平房仓准低温储藏26个月进行模拟,在整个模拟过程中稻谷整体平均温度呈上升趋势,平均粮温仍处于17℃以下;月平均最高粮温均出现在每年的九月份,第一年和第二年分别为14.85℃、15.34℃,表层粮温最高值同样出现在九月份分别为15.3℃、15.8℃。本文探究的稻谷温度场演变规律,可为稻谷平房仓准低温储藏提供应用支持。
This study investigated the spatiotemporal evolution of the temperature field of paddy in quasilow-temperature storage in flat stores using experimental research and numerical simulation.he evolution pattern of the paddy temperature field was derived from a 14-month grain temperature experiment in quasi-low-temperature storage.A numerical model of the temperature field in quasi-low-temperature storage was developed and validated against experimental results.Finally,the temperature profile of paddy over 26 months was predicted by the proposed numerical model.The conclusion can be expressed as follows:During the 14-month experimental period,the overall average temperature of paddy remained below 17℃,with a maximum of 15.57℃and a minimum of 11.32℃.The 26-month quasi-low temperature storage period in the storehouse was simulated by using the above model.The simulation results showed that the overall average temperature of paddy gradually increased but remained below 17℃.The monthly average maximum grain temperature occurred in September each year,with values of 14.85℃and 15.34℃in the first and second years,respectively.Similarly,the highest surface grain temperatures,15.3℃and 15.8℃,were also recorded in September.The evolutionary rule of the paddy temperature field,as elucidated in this paper,offers theoretical support for the quasi-low temperature storage of paddy in storehouses.
作者
吴强
朱豆豆
熊宏
段海静
金立兵
WU Qiang;ZHU Dou-dou;XIONG Hong;DUAN Hai-jing;JIN Li-bing(College of Civil Engineering,Henan University of Technology,Zhengzhou,Henan 450001,China;Henan University of Technology Design and Research Academy Co.,Ltd.,Zhengzhou,Henan 450001,China;Chengdu Longquanyi District Grain and Oil Industry Co.,Ltd.,Chengdu,Sichuan 610000,China)
出处
《粮油食品科技》
北大核心
2025年第1期216-222,共7页
Science and Technology of Cereals,Oils and Foods
基金
河南省级科技研发计划联合基金(应用攻关类)项目“双层浅圆仓粮食进出仓的动力性能及结构优化设计”(232103810080)
河南省重点研发与推广专项“高水位地区地下生态粮仓浮力问题及抗浮关键技术研究”(232102110266)
河南省科技攻关项目“基于压电智能传感器电压响应和时域统计矩的混凝土结构健康监测研究”(232102320014)。
关键词
平房仓
准低温储藏
现场实验
数值模拟
粮食温度
flat stores
quasi-low temperature storage
field experiment
numerical simulation
grain temperature
作者简介
第一作者:吴强,男,1970年出生,硕士,高级工程师,研究方向为粮食仓储基本理论与结构设计,E-mail:wqyjwh@163.com;通信作者:金立兵,男,1976年出生,博士,副教授,研究方向为混凝土结构与新型仓储结构基本理论和长期性能,E-mail:jinlb@haut.edu.cn。
