Study on the Temperature Field Distribution of Warehouse with Different Grain Loading Heights and Spans
By comparing and analyzing the changes in warehouse temperature,average grain temperature,and grain temperature in each layer of two wheat grain piles with different grain loading heights and spans under con-ventional storage condition,and the simulation software was used to reproduce the temperature field of wheat grain pile in order to explore the temperature distribution and variation differences in different regions of grain piles with different loading heights and spans under different seasonal environments.The results showed that the grain storage performance of grain piles with different loading heights and spans was basically the same,and the annual variation trend of grain temperature in each layer was similar.The smaller the height and span of the grain pile,the more susceptible to the external environment,and the greater the temperature fluctuation of the grain pile.The larger the height and span of the grain pile,the less affected the external environment,the phe-nomenon of"cold skin hot core"and"hot skin cold core"was more prominent,and the area of"hot core"and"cold core"was larger.