摘要
粮堆通风的目的是调控粮堆内温度和含水率,这2个变量受通风所用空气的温度和湿度影响。介绍了可感受热量、水的汽化潜热、焓、比焓、比热等概念,举例说明粮食通风过程空气焓变的快速计算或从查湿表查定的方法。
The aim of grain aeration is to regulate the temperature and moisture content in stored grains, these two factors are influenced by air temperature and humidity.The paper introduces the concepts of sensible heat ,latent heat of vaporization, enthalpy,specific enthalpy,and specific heat etc.The changes in air enthalpy during aeration can be decided by quick calculation or the psychrometric chart.
出处
《粮食科技与经济》
2015年第3期62-66,69,共6页
Food Science And Technology And Economy
关键词
可感受热量
汽化潜热
焓
比焓
比热
通风
sensible heat,latent heat of vaporization, enthalpy, specific enthalpy, psychrometric chart
