Methods for calculating the pressure loss of the air flow and energy consumed by the fan of the cotton harvester

Matchanov, Rafik; Rizaev, Anvar; Yuldashev, Abdurahim; Kuldoshev, Davronbek; Mirzaeva, M. M.

doi:10.1051/e3sconf/202126404011

Cited by 10 publications

(5 citation statements)

References 13 publications

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“…A new U-shaped receiving chamber (Figure 1) was developed [24][25][26] to eliminate the shortcomings of the serial slit-like receiving chamber. The receiving chamber consists of the vertical inlet pipe 1 with a side slit-like opening for receiving cotton mass, equal in height to bar 2 of the doffer; curved bottom 3 connecting vertical inlet pipe 1 with outlet pipe 6, a window with lid 4 to remove, if necessary, solid impurities, fairing 5 for directing the air-cotton mixture with less resistance to outlet pipe 6 connected to the suction line of the fan.…”

Section: Resultsmentioning

confidence: 99%

Refinement of the contamination formation mechanism in the pneumatic transporting system of a cotton harvester using a new U-shaped receiving chamber

Matchanov,

Yuldashev,

Kuldoshev

et al. 2023

E3S Web Conf.

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The relevance of reducing raw cotton contamination during machine harvesting is substantiated in this article. The morphological composition of impurity elements in raw cotton, obtained during years of experience, is given; it shows that fine trash amounts to 63.93% -75.1% and is difficult to clean when processing cotton. The experimental results of a new U-shaped receiving chamber are presented, which confirm the reduction of contamination of raw cotton by up to 30% compared to serial receiving chambers. Mathematical models are presented for calculating the contamination of raw cotton using a U-shaped receiving chamber. The mechanism of impurity saturation of raw cotton during its transport in the pipes of the pneumatic transport system of the cotton harvester is substantiated. A comparison of the calculated data on the contamination of raw cotton with the experimental data obtained using a new U-shaped receiving chamber showed that the error limit is 4.8÷9.1%.

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Section: Resultsmentioning

confidence: 99%

Refinement of the contamination formation mechanism in the pneumatic transporting system of a cotton harvester using a new U-shaped receiving chamber

Matchanov,

Yuldashev,

Kuldoshev

et al. 2023

E3S Web Conf.

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“…indicators, in particular, skin integrity is lower by 3-4% [9,10]. Until now, scientific research and experimental design work on the accuracy of running CHMs along cotton rows and its effect on agrotechnical indicators mainly related to the aforementioned tractor-mounted CHMs [3,4,5,7,8]. There are few works on modeling the movement of CHMs of the MX(XM) type, including the stabilization (stabilization) of the movement of the guide wheels, and those that exist are mainly devoted to theoretical and experimental studies of turning the machine on the edge of the field [3,4,5].…”

Section: Introductionmentioning

confidence: 99%

Mathematical modeling of the movement of the guide wheel of the cotton MX harvesting machine

Abdazimov,

Sherkobilov,

Axmedov

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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The article presents the results of the research conducted in order to improve the accuracy and controllability of driving along the cotton row, which is an important factor in increasing the efficiency of the tractor semi-mounted cotton harvesting machine. The article describes the results of mathematical modeling of the movement of the guide wheels of the cotton harvesting machine. The results were obtained with the help of experimental tests.

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“…Until recently, mainly cotton and grain were grown in Uzbekistan's agriculture. For this reason, scientific research work was mainly carried out on the development of plows and other equipment for cultivation of cotton and grain, seed drills, harvesting and cotton picking machines, and grain cleaning machines [6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Size-mass indicators of soybean grown in Uzbekistan

Umirov

Safarov

2022

IOP Conf. Ser.: Earth Environ. Sci.

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In Uzbekistan, soybean is planted as a main crop in early Spring and as a follow-up crop after wheat in Summer. In the conditions of Uzbekistan, the height of soybean grown as a main and repeated crop is 63-99 cm on average, depending on the species and cultivation techniques, the diameter of the stems in the lower part is 4.1-7.1 mm on average, and it is higher in “Oyjamol” and “Amigo” sorts planted in the early period, after wheat and it was lower in the Selekta-201 sort planted as a repeated crop. It was found that the pod placement height was higher than 15 cm in the “Oyjamol” and “Amigo” sorts, while it was 6 cm in the Selekta-201 species , and this indicated the need to set the combine harvester height lower. It was found that the average number of pods in one bush of soybean is 21.0 - 29.8 pieces, the number of grains in a pod is 2-3 pieces, and the ratio of grain to stem is in the range of 1:1 - 1:1.8. This showed that the “Oyjamol” and “Amigo” species planted in the early periods have more grain and stem content than the Selekta-201 sort planted as a repeated crop.

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Methods for calculating the pressure loss of the air flow and energy consumed by the fan of the cotton harvester

Cited by 10 publications

References 13 publications

Refinement of the contamination formation mechanism in the pneumatic transporting system of a cotton harvester using a new U-shaped receiving chamber

Refinement of the contamination formation mechanism in the pneumatic transporting system of a cotton harvester using a new U-shaped receiving chamber

Mathematical modeling of the movement of the guide wheel of the cotton MX harvesting machine

Size-mass indicators of soybean grown in Uzbekistan

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