Comparative Performance Evaluation of Axial Flow and Tangential Axial Flow Threshing System for Basmati Rice (Oryza sativa)

Manes, G. S.; Dixit, Ashish; Singh, Arshdeep; Singh, Manpreet; Singh, Bhupinder

doi:10.1007/s40003-015-0169-3

Cited by 4 publications

(8 citation statements)

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“…It might be due to the fact that at lower moisture content there are lesser unthreshed grains but the damage incurred to grain is more resulting in higher total grain losses. These results are in conformity with Manes et al (2015) and Lashgari et al (2008).…”

Section: Cleaning Efficiency In Scented Paddy Pusa 1121supporting

confidence: 93%

“…The minimum threshing efficiency at higher moisture content may be due to the fact that at higher moisture content the grains became slightly elastic and more impact force is required for the grain to get detached from the ear head. The results are in conformity with those reported by Manes et al (2015) in axial flow threshing system.…”

Section: Grain Losses In Scented Paddy Pusa 1121supporting

confidence: 93%

“…Lower cleaning efficiency at higher grain moisture may be due difficulties in proper screening because of poor flow of threshed material on sieve (Sangwijit and Chinsuwan, 2010). The results are in conformity with Manes et al (2015) who observed that cleaning efficiency increased with increasing cylinder speed upto a critical level and then decreased with further increase in cylinder speed as throughput increases in axial flow threshing system.…”

Section: Cleaning Efficiency In Scented Paddy Pusa 1121supporting

confidence: 92%

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Optimization of combine and crop parameters for harvesting of scented and non-scented paddy (Oryza Sativa) by head feed combine

et al. 2019

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A head feed combine was evaluated for optimization of combine parameters, viz. cylinder speed (14.42, 15.53 and 16.64 m/s), forward speed (3.5, 4.0 and 4.5 km/h), and crop parameter, viz. grain moisture content (18.1 to 22.4%) in relation to threshing efficiency, cleaning efficiency and total grain losses for scented and non-scented paddy (Oryza sativa L.) varieties. Moisture content of 18.1%, cylinder speed of 15.53 m/s and forward speed of 4.0 km/h was found optimum for harvesting of scented paddy variety Pusa 1121, whereas moisture content of 18.1%, cylinder speed of 16.64 m/s and forward speed of 4.5 km/h was found optimum for harvesting of non-scented paddy variety HKR 127.

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Section: Cleaning Efficiency In Scented Paddy Pusa 1121supporting

confidence: 93%

Section: Grain Losses In Scented Paddy Pusa 1121supporting

confidence: 93%

Section: Cleaning Efficiency In Scented Paddy Pusa 1121supporting

confidence: 92%

See 1 more Smart Citation

Optimization of combine and crop parameters for harvesting of scented and non-scented paddy (Oryza Sativa) by head feed combine

et al. 2019

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“…The crop is thus threshed by repeated impact of the threshing pegs. The process produces high quality product, eliminates drudgery associated with local threshing system and reduces threshing losses (Manes et al, 2015;Olaoye, 2011).…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of a Cowpea Thresher at Various Moisture Contents

Asante

Kallai

Bonney

et al. 2020

IJTMR

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To improve the quality of threshed cowpea (Vigna unguiculata L.), produced by rural farmers in Ghana, and determine the best machine-crop parameters combination for optimum performance, a cowpea thresher was developed and evaluated at different moisture contents. The cowpea after harvesting was divided into five units and dried to 20.7, 18.4, 15.5, 13.5 and 12.6 % seed moisture contents. The effect of seed moisture contents on threshing quality was assessed at 735 rpm rotor speed using the white with black eye cowpea. The performance test showed that 12.6 % had the highest throughput of 77.56 kg/h with the lowest of 66.28 kg/h from the 20.7%. The seed damage ranged from 1.64 to 9.46 % and threshing efficiency from 93.11 to 99.40 %. Analyses done at 5% level of significance indicated no significant difference in the throughput and threshing efficiencies. However, seed damage had significant difference. Subsequently, analysis performed on the data for seed loss of 12.6 and 13.5 % which were the best performing moisture contents showed no significant differences. Therefore, seed moisture contents less than 13.5 % and rotor speeds less than 735 rpm are the crop- machine parameters combination for optimum thresher performance. Key words: Design; Throughput; Impact Force; Seed Loss; Simulation

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“…The process results in high output and cleaning efficiency. Axial flow of the crop is facilitated by the use of louvers provided on the upper concave (Sessiz and Ulger 2003;Manes et al 2015). The straw is then thrown out of the threshing unit by paddles.…”

Section: Working Principles Of Beans Threshersmentioning

confidence: 99%

Mechanised Threshing of Pod Grains used as food and Strategies to Optimise the Technique: A Review

Asante¹,

Akowuah

Appah

et al. 2021

JAA

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Pod grains threshing using mechanical devices is essential in understanding the diversities involved in the application of machine–crop parameter combinations towards achieving best quality grain. The integration of pod grains’ physical properties in optimizing product quality which is vital to meet the increasing global requirement is limited. However, with computing and technological advancements into thresher design and evaluation have been found to be capable of meeting these needs which are of interest to researchers. Over the past three–four decades, the applications of the technology in reducing impact force through modification of peg geometry have attracted researchers’ widespread interest and the future looks promising. This review presents an overview of mechanical thresher development and the applications in the field of pod grain production chain. The role of grain physical properties in threshers design, operations and with force sensors to reveal the mysteries surrounding the causes of grain damage and how they can be minimised are stressed. The current trends and future advances of such studies are also presented.

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Comparative Performance Evaluation of Axial Flow and Tangential Axial Flow Threshing System for Basmati Rice (Oryza sativa)

Cited by 4 publications

References 0 publications

Optimization of combine and crop parameters for harvesting of scented and non-scented paddy (Oryza Sativa) by head feed combine

Optimization of combine and crop parameters for harvesting of scented and non-scented paddy (Oryza Sativa) by head feed combine

Performance Evaluation of a Cowpea Thresher at Various Moisture Contents

Mechanised Threshing of Pod Grains used as food and Strategies to Optimise the Technique: A Review

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