农业机械学报2011，Vol.42Issue(3)：120-124,5.
气调保鲜运输车通风系统阻力特性试验
Pressure Drop Characteristics of the Ventilation System in Fresh-keeping Transportation with Controlled Atmosphere
摘要
Abstract
An experimental device of ventilation system was established to meet the requirement of fresh-keeping transportation with controlled atmosphere by liquid nitrogen. The pressure drop characteristics of the ventilation system were studied. The effects of airflow velocity, ratio of open area, stack mode and length of return air channel on the characteristics of pressure drop and energy consumption were analyzed. The pressure drop characteristics could be described by the equation of Ramsin. The pressure drop increased with the addition of airflow velocity. At the same airflow velocity, the pressure drop decreased with the addition of ratio of open area.. The distribution of pressure drop in fresh-keeping room was steady. The effect of three stack modes on the pressure drop was not striking. The pressure drop was less when there was no return air channel. When the ratio of open area of the separator with holes in fresh-keeping transportation vehicle was bigger than 3. 89% , it could meet low pressure loss and had small energy consumption. The research achievements will be instructive to the design of the ventilation system in fresh-keeping transportation with controlled atmosphere.关键词
气调/阻力特性/开孔率/保鲜运输Key words
Controlled atmosphere/ Pressure drop characteristics/ Ratio of open area/ Fresh-keeping transportation分类
农业科技引用本文复制引用
吕恩利,陆华忠,杨洲,韩小腾,张东霞,韩谞..气调保鲜运输车通风系统阻力特性试验[J].农业机械学报,2011,42(3):120-124,5.基金项目
广东省自然科学基金资助项目(10151064201000038)、广东省科技计划资助项目(20088021200008)、广东省人大议案项目(粤农函[2009]1099号)、华南农业大学校长科学基金资助项目(2009K008)和现代农业产业技术体系建设专项(nycytx-32) （10151064201000038）
