Ambient-air drying<\/h2>\n\n\n\n
Whether heat or ambient air is being used, soybeans in a silo need to be levelled out to ensure smooth airflow. Ambient-air drying can be used only if the relative humidity of outside air is lower than the soybean equilibrium moisture content. A fan should not be run continuously without regard to the air\u2019s relative humidity, otherwise the soybeans will regain their lost moisture as relative air humidity rises (for example, overnight). In other words, the fan should only be started if the outside conditions are right for ambient-air drying. Note that air temperature must be below 30\u00b0C and air humidity must be between 50 % and 70 %. It takes 20 to 30 days of ambient-air drying to achieve the right moisture content. A number of factors will affect the required drying time, such as soybean moisture at the outset, weather conditions, fan power, and the depth of the soybean layer. If your goal is to reduce soybean moisture, the fan should only be started if ambient-air humidity is less than 70 %. If the fan is pushing air from the bottom upward and there is moisture at the bottom of the silo, soybean moisture will migrate higher until it is exhausted from the silo. Taking samples throughout the process will let you assess the stage you are at.<\/p>\n\n\n\n For example<\/strong>:<\/strong> If your soybeans are drying at an air temperature of 10\u00b0C and a relative air humidity of 80 % over a long period of time, their moisture content will be roughly 15.7 % (hygroscopic equilibrium point). At the same temperature but with 90 % relative humidity, your soybeans will have a moisture content of about 19.6 %; conversely, the same temperature with 60 % relative humidity will produce soybeans that have an 11.2 % moisture content or so. Thus, if you want soybeans with a moisture content below 14 % but above 12 %, aerate them with air whose relative humidity is between 65 % and 70 %.<\/p>\n","protected":false},"excerpt":{"rendered":" Soybean quality is highly dependent on how well they were ventilated and dried. These factors are critical to safeguarding the processing and germination potential of domestically grown soybeans. Soybeans can be dried either at a low temperature or with ambient air. Low-temperature drying When soybeans are damp (> 16 %) and there are few dry days, […]<\/p>\n","protected":false},"author":7,"featured_media":26101,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":""},"categories":[15],"tags":[],"author_meta":{"display_name":"devmxo","author_link":"https:\/\/prograin.ca\/ca\/author\/devmxo\/"},"featured_img":"https:\/\/prograin.ca\/app\/uploads\/sites\/3\/2023\/10\/Ventilation-1-300x200.jpg","yoast_head":"\n![\"\"\/](\"https:\/\/lh3.googleusercontent.com\/qAYB8-cFYa8fBiC25-o73K39o80Hg96LJ3SGN9S9E5ZQVqKZIZ6CqTJ6QoUrUlQKuSJ4F7a7GgTRPAosViGGE6vF0lUqO-CpRpQBsKQr7QNlJt6r6ooNTlTza8C0LXHmluEQtCI\")
Understanding this chart\u00a0<\/h2>\n\n\n\n