安徽农业大学学报2024，Vol.51Issue(5)：899-906,8.DOI:10.13610/j.cnki.1672-352x.20241031.001
基于CFD茶叶烘干机的优化设计与试验
Optimization design and experiment of tea dryer based on CFD
摘要
Abstract
Aiming at the problems of unreasonable structure design and uneven temperature distribution of 6CH automatic chain plate tea dryer,the optimization design and subsequent testing conducted for the 6CH auto-matic chain plate tea dryer were carried out.The layout of the guide plate was optimized,and a steady-state tem-perature field simulation model for the dryer components was established using computational fluid dynamics(CFD)software for the optimized tea dryer.The cross-sectional temperature and velocity contour maps were uti-lized to analyze three distinct working conditions:an inlet air speed of 20 m·s-1 at a temperature of 130 ℃,an in-let air speed of 25 m·s-1 at a temperature of 140 ℃,and an inlet air speed of 30 m·s-1 at a temperature of 150 ℃.The interior of the drying chamber was found to be capable of achieving the necessary high-temperature envi-ronment,which is essential for rapid drying and the subsequent descent to the lower layer.An orthogonal test with three factors and three levels was employed to ascertain the optimal parameter combination under practical work-ing conditions.The test results showed that at the inlet air temperature of 144.81 ℃,the blower wind speed of 20.62 m·s-1,and a conveying speed of 1.78 m·s-1,the precipitation amplitude reached 40.75％,and the broken tea rate was 2.07％,both of which satisfied and surpassed the agronomic specifications.This research offers valuable insights for the optimization of key parameters in tea drying processes and the design of dryers.关键词
茶叶烘干机/优化设计/流体力学/CFD/正交试验Key words
tea dryer/optimization design/fluid mechanics/CFD/orthogonal test分类
农业科技引用本文复制引用
李旭,曹成茂,吴慢玉,陈传涛,吴正敏,孙燕..基于CFD茶叶烘干机的优化设计与试验[J].安徽农业大学学报,2024,51(5):899-906,8.基金项目
十四五国家重点研发计划项目子课题-食品工业用茶智能化加工关键技术研究(2022YFD2101103)资助. （2022YFD2101103）
