期刊论文

Study on settlement of nutrient solution in vegetable cultivation pipeline based on ultrasonic atomization

中文

浙江农业学报

1004-1524

2020

32

4

723-730

10.3969/j.issn.1004-1524.2020.04.20

教育部重点研发计划(2017YFD0700903-2)。

本校为第一机构

为了研究风速、雾化量、温度差对蔬菜栽培管道内营养液雾气的沉降变化的影响,搭建了基于超声雾化的蔬菜栽培管道试验平台。采用单因素试验分析了风速、雾化量、温度差对管道内雾气沉降量的影响,利用二次回归正交旋转组合试验得到影响雾气沉降的因素主次顺序,并建立了营养液雾气沉降量的回归方程。随着栽培管道内雾化量的增加,沉降量总体呈上升趋势。当雾化量低于420 mL·h~(-1)时沉降量增加缓慢,当雾化量大于420 mL·h~(-1)时沉降量增加明显。随着风速逐渐增大,沉降量不断减少,风速为1.1 m·s~(-1)沉降量最大,风速大于1.5 m·s~(-1)后沉降量显著减少。沉降量随着温度差的正负水平近似对称变化,温...

A pipeline cultivation test platform based on ultrasonic atomization was built to study the effect of wind speed,atomization amount and temperature difference on settlement of nutrient solution fog in the pipeline.The influence of wind speed,atomization amount and temperature difference on the fogging amount in the pipeline was analyzed by single factor experiment,the order of factors were obtained by quadratic regression orthogonal rotation combined test,and the regression equation of the settlement amount of nutrient solution was established....