Testing, Evaluating and Simulate the Performance of the Newly Designed Drum for a Sunflower Threshing Machine

Ali, Khaled Abdeen Mousa; Zong, Wang; Na, Li; El-Wahhab, Gomaa Galal Abd; Li, Mao

doi:10.4028/p-8s4erw

Cited by 3 publications

(2 citation statements)

References 14 publications

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“…The results indicate a substantial increase in power requirements at higher drum speeds and when using an increasing number of brush peeling rows. This result agrees with [30]. The lowest recorded power requirement was 79.29 W, observed under the operational conditions of a drum rotational speed of 100 rpm and four brush peeling rows.…”

Section: Power Requirements and Consumed Specific Energysupporting

confidence: 89%

Optimization and Prediction of Operational Parameters for Enhanced Efficiency of a Chickpea Peeling Machine

Ali,

Li,

et al. 2024

Agriculture

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Chickpeas hold significant nutritional and cultural importance, being a rich source of protein, fiber, and essential vitamins and minerals. They are a staple ingredient in various cuisines worldwide. Peeling chickpeas is considered a crucial pre-consumption operation due to the undesirability of peels for some uses. This study aimed to design, test, and evaluate a small chickpea seed peeling machine. The peeling prototype was designed in accordance with the chickpeas’ measured properties; the seeds’ moisture content was determined to be 6.96% (d.b.). The prototype was examined under four different levels of drum revolving speeds (100, 200, 300, and 400 rpm), and three different numbers of brush peeling rows. The prototype was tested with rotors of four, eight, and twelve rows of brushes. The evaluation of the chickpea peeling machine encompassed several parameters, including the machine’s throughput (kg/h), energy consumption (kW), broken seeds percentage (%), unpeeled seeds percentage (%), and peeling efficiency (%). The obtained results revealed that the peeling machine throughput (kg/h) exhibited an upward trend with increases in the rotation speed of the peeling drum. Meanwhile, the throughput decreased as the number of peeling brushes installed on the roller increased. The highest recorded productivity of 71.29 kg/h was achieved under the operational condition of 400 rpm and four peeling brush rows. At the same time, the peeling efficiency increased with the increase in both of peeling drum rotational speed and number of peeling brush rows. The highest peeling efficiency (97.2%) was recorded at the rotational speed of 400 rpm and twelve peeling brush rows. On the other hand, the lowest peeling efficiency (92.85%) was recorded at the lowest drum rotational speed (100 rpm) and number of peeling brush rows (4 rows). In the optimal operational condition, the machines achieved a throughput of 71.29 kg/h, resulting in a peeling cost of 0.001 USD per kilogram. This small-scale chickpea peeling machine is a suitable selection for small and medium producers.

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Section: Power Requirements and Consumed Specific Energysupporting

confidence: 89%

Optimization and Prediction of Operational Parameters for Enhanced Efficiency of a Chickpea Peeling Machine

Ali,

Li,

et al. 2024

Agriculture

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“…Stationary threshing machines are more convenient for threshing and separating seeds from their heads [22]. These machines have high efficiency and ensure slight losses of seeds with suitable throughput, which means that these machines are particularly well-suited for farmers with small and medium-area holdings.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the Performance of Sunflower Threshing Machines through Innovative Enhancements

Ali,

Li,

Wang

et al. 2024

Agriculture

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Improving the performance of the threshing process is of utmost importance in enhancing the quality of sunflower seeds and minimizing power consumption in sunflower production. In this study, we developed a modified sunflower threshing machine by incorporating two types of threshing rotors, namely the angled rasp bar rotor and the tine bar rotor, as compared to the round bar rotor. The performance of these rotors was evaluated under various rotational speeds (150, 200, 250, and 300 rpm) and concave clearances (10, 15, and 20 mm). The evaluation parameters included machine throughput, the specific energy of threshing, the percentage of damaged seeds, the percentage of unthreshed seeds, and threshing efficiency. The results indicate that the specific energy decreased with an increase in rotor speed and a decrease in concave clearance, with the tine bar rotor exhibiting the lowest values. Threshing efficiency showed an increasing trend with higher rotor speeds and reduced concave clearance. The modifications made to the rotor design resulted in an enhanced threshing efficiency, with an improvement from 96.30% to 97.93% achieved at a rotor revolving speed of 300 rpm and a concave clearance of 10 mm. Moreover, the specific energy consumption reduced from 9.65 kW·h/ton to 5.09 kW·h/ton under the same operational conditions. These findings highlight the efficacy of the novel rotor design modifications in optimizing the performance of the stationary sunflower threshing machine, leading to improved efficiency and reduced energy consumption in sunflower seed threshing operations. Given its performance characteristics, this machine exhibits potential suitability for sunflower farms of small to medium scale.

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Reaper Blade System for Harvesting Sunflowers

Налобіна

Vasylchuk

Bundza

et al. 2023

INMATEH

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The relevance of the study is due to the need to reduce the energy intensity of the process of cutting sunflower stalks by choosing a rational profile of knives. The research is based on a comparative analysis of experimental values of cutting forces for the proposed and manufactured design of the knife system and known knife systems. The studies have shown that the implementation of the retaining and main knives of the header in the form of a curved spiral of Archimedes allowed to reduce the cutting force. It was also found that the cutting force for the proposed design of the knife system, unlike other studied, practically does not change with the removal of the stem from the axis of rotation of the knives, which does not require an increase in energy costs for the cutting process.

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Testing, Evaluating and Simulate the Performance of the Newly Designed Drum for a Sunflower Threshing Machine

Cited by 3 publications

References 14 publications

Optimization and Prediction of Operational Parameters for Enhanced Efficiency of a Chickpea Peeling Machine

Optimization and Prediction of Operational Parameters for Enhanced Efficiency of a Chickpea Peeling Machine

Enhancing the Performance of Sunflower Threshing Machines through Innovative Enhancements

Reaper Blade System for Harvesting Sunflowers

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