Design and Experimental Study of Targeted Ventilation Temperature Control System for Low-Temperature Grain Storage Based on Dynamic Thermal Insulation
In response to the issues of low efficiency,single functionality,and insufficient precision control in tra-ditional low-temperature grain storage systems,innovatively developd a targeted ventilation and temperature control system for low-temperature grain storage based on the dynamic thermal insulation theory in this study.The system comprises modules for temperature monitoring,decision control,drive execution,and remote monitoring which could schive.To validate the practicality and effectiveness of the system,a comprehensive evaluation was conduc-ted from aspects temperature control performance and grain storage quality.The results indicated that average grain temperature remained below 14.2 ℃,the highest grain temperature was below 20 ℃,moisture content decreased by 0.2％,and the in fatty acid value was increasedly 1.4 mgKOH/100g.Compared with the traditional low-tem-perature grain storage temperature control system,the increase in fatty acid value decreased by 41.7％,and there was no occurrence or development of insect mold.That demonstrated excellent temperature control performance and quality preservation.The system can effectively reduce the economic loss of grain storage and meet the technical re-quirements of high standard low-temperature grain storage.
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