Published date: Apr 05 2021

Journal Title: KnE Life Sciences

Issue title: DonAgro: International Research Conference on Challenges and Advances in Farming, Food Manufacturing, Agricultural Research and Education

Pages: 206–214

DOI: 10.18502/kls.v0i0.8949

Ivan Kechkin kechkin87@mail.ruDepartment of Commodity Science and Expertise, Plekhanov Russian University of Economics, 36, Stremennyi prov., Moscow, 117997, Russian Federation

Vladimir ErmolaevDepartment of Commodity Science and Expertise, Plekhanov Russian University of Economics, 36, Stremennyi prov., Moscow, 117997, Russian Federation

Marina BelyaevaDepartment of Commodity Science and Expertise, Plekhanov Russian University of Economics, 36, Stremennyi prov., Moscow, 117997, Russian Federation

Valentina TarakanovaK.G. Razumovsky Moscow State University of technologies and management (the First Cossack University), 109004, Moscow, Russia

Elena GurkovskayaK.G. Razumovsky Moscow State University of technologies and management (the First Cossack University), 109004, Moscow, Russia

Konstantin BuzettiK.G. Razumovsky Moscow State University of technologies and management (the First Cossack University), 109004, Moscow, Russia

This study showed that there were some changes in the temperature and humidity parameters of wheat grains during the storage year. The grain moisture content in both the near-wall and central parts of the metal silo largely did not change, remaining at a level of 10-11%. Moisture values were recorded monthly, and grain temperature was recorded in accordance with seasonal changes, thus, the range of temperature changes was from 20 to 32°С at a minimum outdoor temperature of 5°С. The moisture content of the grain in the surface layer increased by 0.4-1.2% and the final moisture content of the grain was 11.6%. Experiments on grain temperature and humidity changes with active ventilation in large-capacity metal silos have shown that the rate of change (decrease) in temperature depends on the specific air flow rate, and the difference in air and grain temperature. Experimental storage showed that a grain with the moisture content up to 13.6% can be stored for up to nine months without deterioration in quality. A longer shelf life is possible for wheat grains with a moisture content of up to 12%. This article pays special attention to the processes occurring in the under-roof space of large-capacity metal silos and suggests methods for solving this problem.

Keywords: long-term storage, active ventilation, metal silos, heat and mass transfer processes

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