Modelling Wheat Grain Flow During Sowing Based on the Model of Grain with Shifted Center of Gravity

Abstract

Winter wheat is one of the widespread crops in Ukraine. The search for methods to increase the yield and consumer properties of wheat, without compromising environmental safety, is one of the important scientific problems. The principles of precision agriculture point to the proper positioning of the seeds, recommending the method of “upward germination” (positioning the wheat germ vertically). The main objective of this study was to develop a new geometric model of wheat grain with a displaced centre of mass, as well as to conduct the theoretical research and numerical experiments on the orientation of grains using their multiple impact interaction with inclined surfaces. A new model of germ consisting of two different end semispheres and amid-line truncated cone was proposed, with a displaced centre of mass. Taking into account the physical properties of the objects, the concept of arrangement of gravity orientation of seeds in a stream was applied. This concept was based on various ratios of kinetic parameters of bodies with a displaced centre of gravity following an impact. The results showed that the orientation process can be controlled by changing the inclination angles and the length of the walls of the tray orientator within the working velocity range. This must be done before impact interaction of 0.2-0.3 m s−1 when the inclination angles of the impact interaction planes are 24-32°C.

Інженерний Менеджмент Діагностичних Параметрів Двигунів Зернозбиральних Комбайнів

“…Відомо, що чисельне значення кута випередження подачі палива є одним з основних параметрів комбайнового дизельного двигуна. Від точності установки кута випередження подачі палива залежать основні техніко-економічні показники двигуна -потужність і економічність (Zubko et al, 2022). Через 900-1000 мото-год роботи двигуна точно встановлене чисельне значення кута випередження подачі палива зменшується.…”

The Quality of Winter Wheat Grain by Different Sowing Strategies and Nitrogen Fertilizer Rates: A Case Study in Northeastern Poland

“…Wheat grain accounts for 21% of total dietary calories, 20% of protein, and 55% of carbohydrates consumed by 4.5 billion people around the world. Wheat a staple food for 36% of the global population [1][2][3][4] and one of the most popular cereal crops around the world [5][6][7][8]. Wheat, rice, and maize are the three main pillars of the human diet [5].…”

“…In 2021, the global harvests of maize, rice, and wheat reached 1210, 778, and 771 Tg, respectively, and accounted for 90% of the total cereal grain harvests worldwide [7]. However, wheat has a considerable advantage over other strategic cereals in terms of global food security because it easily adapts to varied environmental conditions due to its high plasticity [2,6,9,10]. Wheat is cultivated from 67 • N in Scandinavia and Russia to 45 • S in Argentina, including in elevated areas of tropical and sub-tropical regions [9].…”

Effect of moisture content and pulley shaft speed on grinding characteristics of wheat (Triticum aestivum)

“…Among these cereals, wheat is a crucial cereal crop that holds immense significance in terms of food globally with the largest producers being China, India, and the United States (Tian et al, 2022;Dziki, 2023) [31,9] . Wheat is grown in a variety of climates and soils and is adaptable to different growing conditions (Zubko et al, 2022;Dziki, 2023) [35,9] . It has played a significant role in shaping human civilization and remains an integral part of our daily lives as a vital food source (Turky et al, 2023;Dziki, 2023) [32,9] .…”