| 高大平房仓双侧吸出式斜流通风数值模拟和实验的比较研究 |
| |
| 引用本文： | 王远成,石天玉,曲安迪,杨开敏,魏雷.高大平房仓双侧吸出式斜流通风数值模拟和实验的比较研究[J].中国粮油学报,2020,35(3):140. |
| |
| 作者姓名： | 王远成 石天玉 曲安迪 杨开敏 魏雷 |
| |
| 作者单位： | 山东建筑大学热能工程学院,国家粮食与物质储备局科学研究院,山东建筑大学热能工程学院,山东建筑大学热能工程学院,国家粮食与物质储备局科学研究院 |
| |
| 基金项目： | 国家重点研发计划项目（2016YFD0400100, 2016YFD0401002） |
| |
| 摘 要： | 本研究基于数值模拟方法,对高大平房仓双侧吸出式斜流降温保水通风实验工况进行了数值模拟仿真,分析了在双侧吸出式斜流通风过程中粮堆温度和水分的变化规律,对实验数据与计算机模拟结果进行了对比分析。同时,探究了斜流通风与横向通风相结合时的降温保水效果。研究发现,采用双侧吸出式揭膜斜流通风,在通风空气温度和湿度合适的情况下,可以实现高大平房粮堆上部的快速降温保水效果。在进行斜流通风后,再适当地进行一段时间的横向通风,就可以有效地降低粮堆底部的粮温,而且粮堆水分基本不变。斜流与横向相结合的通风方式可以实现储粮快速降温保水效果。
|
| 关 键 词： | 数值预测 斜流通风 热湿传递 降温保水 |
| 收稿时间： | 2019/6/9 0:00:00 |
| 修稿时间： | 2019/7/18 0:00:00 |
Numerical and Experimental Study on Temperature and Moisture Distribution in Stored Grains in a Warehouse during the Bilateral Suction Aeration |
| |
| Abstract: | In present paper, the numerical and experimental investigations of the temperature and moisture change in bulk stored wheat in warehouse during the bilateral suction aeration were conducted. The experimental data and numerical simulation results were compared and analyzed. The effect of cooling and moisture retention during combination of bilateral suction and horizontal cross aeration is also investigated. It was found that numerical simulation method can effectively predict the variation of temperature and moisture in grain stack in warehouse during the process of bilateral suction aeration, and the combination of bilateral suction aeration with horizontal cross aeration can achieve rapid cooling and moisture retention in bulk stored grain in warehouse. |
| |
| Keywords: | numerical prediction experimental investigation temperature and moisture variation bilateral suction aeration bulk stored grain |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《中国粮油学报》浏览原始摘要信息 |
|
点击此处可从《中国粮油学报》下载全文 |
|
