Development a Prototype for Improving the Performance of the Cleaning Unit in Combine Harvesting Machine

Sehsah, E. M. E.; AbouZaher, Said E.; Kholief, R. M.; El-Hanafy, A. H.

doi:10.21608/mjae.2018.95841

Cited by 1 publication

(4 citation statements)

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“…Table 5 shows that certain experimental parameters have a high statistical significance in affecting the values of evaluated parameters and several of them have no significance, indicating that the P-value is the most significant from the statistical viewpoint (Sehsah et al, 2018;Nugus, 2009).…”

Section: Discussionmentioning

confidence: 99%

“…The samples used had 29.64% MOG in every kg, which was determined by using an electric balance. Table 3 presents the average values of physical, mechanical, and aerodynamic properties for Gemmiza 11 at ten replicates (Sehsah et al, 2018).…”

Section: Samplesmentioning

confidence: 99%

“…where: a -grain recovery in the product; b -straw and immature in the product; c -grain in the reject; d -straw and immature in the reject (Hanna et al, 2010) (12) where: a -grains in the reject; b -clean grains in the product (Sehsah et al, 2018)…”

Section: Machine Evaluation Criteriamentioning

confidence: 99%

“…The maximum average value of cleanliness was 99.41% at an aerodynamic suction velocity of 14.9 m•s -1 , sieve slope of 15°, feed rate of 3 kg•min -1 , the rotational speed of 245 rpm, and with rectangular shape of the suction tube. In their experiments, Sehsah et al (2018) observed the maximum average value of the grain loss of 4.04% at 14.9 m•s -1 aerodynamic suction velocity, 15° sieve slope, feed rate of 7 kg•min -1 , 350 rpm rotational speed, and rectangular shape of suction tube. On the other hand, wheat immersing and dipping in the canal's water is the most frequent cleaning method utilized in the Egyptian countryside for the purposes of separation of foreign bodies and impurities from wheat -farmers put the wheat in a sack and submerge it in the canal water for a certain time, then take it out and put the wet grains on a tarpaulin surface susceptible to air and sun to dry.…”

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confidence: 97%

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Design and Assessment of a Small-Scale Machine for Cleaning Wheat Grains

Ali¹,

El-Rahman

Nasr

2022

Acta Technologica Agriculturae

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A small-scale wheat cleaning machine was designed to winnow and separate grains from materials-other-than-grains (MOG), such as premature grains and chaff, in order to enhance the quality of grains. It was evaluated technically with respect to assessment criteria: cleanliness, grain loss, chaff rejection, and cleaning efficiency. Experiments were carried out at three levels of sieve slopes (5, 10, and 15°), two sieve reciprocating speeds (0.48 and 0.95 m·s−1), two levels of feed rates (1 and 1.5 kg·min−1), and three air velocities (5, 6 and 7 m·s−1). The results showed that, at sieve reciprocating speed of 0.95 m·s−1, the maximum cleanliness value was – 96.25% – observed at 1.5 kg·min−1 feed rate, 5 m·s−1 air velocity and 5° sieve slope. The minimum cleanliness value – 76.82% – was observed at a feed rate of 1 kg·min−1, 15° sieve slope, 7 m·s−1 air velocity, and 0.48 m·s−1 sieve reciprocating speed. The results showed that the use of either a very low, or a very high sieve slope angle and sieve reciprocating speed while using different air velocities and feed rates is not recommended.

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Section: Discussionmentioning

confidence: 99%

Section: Samplesmentioning

confidence: 99%

Section: Machine Evaluation Criteriamentioning

confidence: 99%

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