Optimization of operational parameters for mechanized harvesting of mung-bean (Vignaradiata (L.) Wilczek) with combine harvester

2019 ◽  
Author(s):  
Baldev Dogra ◽  
Dinesh Kumar ◽  
Ritu Dogra ◽  
T.S. Bains ◽  
G.S Manes
Keyword(s):  
Mung Bean ◽  
Rear Side ◽  
Forward Speed ◽  
Operational Parameters ◽  
Peripheral Speed ◽  
Crop Varieties ◽  
Grain Damage ◽  
Combine Harvester ◽  
Crop Parameters ◽  
Bean Crop

The present study was aimed at optimizing operational and crop parameters influencing the mechanized harvesting and threshing of mung-bean crop with combine harvester. Two varieties of summer mung-bean SML-668 and SML-832 and one variety of kharif mung-bean ML-818 were selected for the study. Concave clearance was kept as 25 mm at front side and 10 mm from rear side. The height of cut the crop ranged from 8-9.5 cm. Threshing efficiency was more than 98% at cylinder peripheral speeds C3 and C4 in all varieties except SML-832. The percent grain damage was higher for higher cylinder peripheral speed and lower for higher forward speed. The grain damage ranged from 1.54 – 3.22 percent for C1, C2 and C3 cylinder peripheral speed in all crop varieties. Peripheral speed of 18.91 m/s and forward speed of 1.5 km/h was found to be optimum for harvesting mung-bean with combine harvester for all crop varieties.

Optimization of operational parameters for mechanised harvesting of pigeon-pea (Cajanus cajan) with combine harvester

2019 ◽  
Author(s):  
Baldev Dogra ◽  
Dinesh Kumar ◽  
Ritu Dogra ◽  
Inderjit Singh ◽  
G.S. Manes
Keyword(s):  
Pigeon Pea ◽  
Rear Side ◽  
Forward Speed ◽  
Operational Parameters ◽  
Sun Drying ◽  
Peripheral Speed ◽  
Crop Varieties ◽  
Grain Damage ◽  
Combine Harvester ◽  
Crop Parameters

Pigeon-pea is very thick and woody stem crop, therefore the harvesting and threshing of this crop is a drudgery and time consuming. At present in India pigeon-pea is harvested manually with sickle and after that the crop is left in the field in the form of heaps for 7-10 days for sun drying. After sun drying the crop is threshed with suitable thresher or beating with stick etc. Lack of mechanization of harvesting and threshing operation is one of the limitations to the increase production and productivity of pigeon-pea. Therefore, the present study was aimed at optimizing operational and crop parameters influencing the mechanized harvesting and threshing of pigeon-pea crop with combine harvester. PAU-881, AL-1856, AL-1817 and AL-1811 of extra-short duration pigeon-pea were selected for the study. The moisture content of crop and grain varied from 38 to 48% and 22 to 25% on wet basis respectively for crop varieties AL-1817 and AL-1811 and it was 48 to 53% and 24 to 27% on wet basis respectively for crop varieties PAU-881 and AL-1856. Concave clearance was kept as 16 mm at front side and 7 mm from rear side. Threshing efficiency was more than 98% at cylinder peripheral speed of 26.61 m/s and 34.85 m/s in all varieties except PAU-881. The percent grain breakage was higher for higher cylinder peripheral speed and lower for higher forward speed. The grain damage was below 1% for 23.85m/s, 26.61 m/s and 34.85 m/s cylinder peripheral speed in all crop varieties except AL-1811. The optimum values of peripheral velocity and forward speed of combine harvester harvesting pigeon-pea were 26.61 m/s and 2.0 km/h for all selected varieties.

scholarly journals Development of stripper harvester for paddy

2017 ◽  
Vol 9 (4) ◽  
pp. 1943-1948
Author(s):  
Girishkumar Balasaheb Bhanage ◽  
P. U. Shahare ◽  
V. V. Aware ◽  
K. G. Dhandeand ◽  
P. S. Deshmukh
Keyword(s):  
Hydraulic System ◽  
High Capacity ◽  
Field Capacity ◽  
Steering System ◽  
Western Ghat ◽  
Forward Speed ◽  
Peripheral Speed ◽  
Combine Harvester ◽  
Gear Box ◽  
Field Efficiency

Konkan is the coastal part of Maharashtra between Western Ghat and Arabian seacoast. Rice is a major crop grown over 3.86 lakh hectares. Stripper harvesting technology, which strips only seeds and keeps straw erect-ed in the field present bright prospect for the development of small, light, efficient mechanism by reducing number of operation with increased capacity and lesser power compared to conventional cutter bar combine harvester. The big machines like combine harvester and high capacity threshers for harvesting and threshing have limitations. A proto-type of paddy stripper harvester was developed considering the limitation of Konkan like small, fragmented land, hilly, terrace farming and high rainfall. It consisted of stripping mechanism, grain tank, hydraulic system, steering system, gear box, engine, cage wheel and chassis. The arrangement of V-belt and set of pulleys were made to transmit power from gear box to stripper rotor. The effect of forward speed and peripheral speed on shattered and un-stripped grain loss was studied. The shattered grain loss was decreased with increase in forward speed whereas decreased initially and then increased with increase in peripheral speed. The un-stripped grain loss was decreased with increase in forward and peripheral speed. The performance of the developed prototype was found better at forward speed of 2.25 km/h and peripheral speed of 19.78 m/s. During final testing of prototype, shattered and un-stripped grain loss was found 5.95 and 1.89 %, respectively. The average field capacity and field efficiency of paddy stripper harvester machine was found 0.14 ha/h and 69.38 per cent respectively.

scholarly journals Effect of Straw Throwing Method and Some Operational Parameters on the Performance of a Small Rectangular Baler

2020 ◽  
Vol 10 (2) ◽  
pp. 21-26
Author(s):  
Affan O. Hussein
Keyword(s):  
Hordeum Vulgare ◽  
Fuel Consumption ◽  
The Other ◽  
Throughput Capacity ◽  
Forward Speed ◽  
Operational Parameters ◽  
Triticum Spp ◽  
Combine Harvester ◽  
Operational Factors ◽  
Private Farm

The experiment was carried out on a private farm in Karak village in 2017 to study the effects of the method of throwing the straw behind the combine harvester and some operational factors on the performance of a small rectangular baler. The field was planted with wheat (Triticum spp.) and barley (Hordeum vulgare). A small rectangular baler type (Ćicoria 454), Italian made was used to pick up and bale the straws, which were thrown as heaps and windrows in the field. The results obtained showed that picking up the straw as windrows improved the baler’s performance over the heaps in terms of number of mechanical units stops, time require for baling, fuel consumption, baler’s throughput capacity, and baler’s throughput efficiency, on the other hand, the forward speed also affected the baler’s performance when the straw was thrown as windrows; By increasing the forward speed, the slippage percentage increased but the fuel consumption, baler’s throughput efficiency, and baler’s throughput capacity decreased.

scholarly journals Performance Evaluation of design and operational parameters of Conventional Combine Harvester for Basmati Rice (Oryza Sativa)

2020 ◽  
Author(s):  
Manvendra Bhardwaj ◽  
Ritu Dogra ◽  
Mohammed Javed ◽  
Manjeet Singh ◽  
Baldev Dogra
Keyword(s):  
Oryza Sativa ◽  
Field Evaluation ◽  
Basmati Rice ◽  
Research Station ◽  
Operational Parameters ◽  
Food Grains ◽  
Grain Damage ◽  
Combine Harvester ◽  
Independent Design

Abstract Among all the food grains, Basmati rice (Oryza sativa) has significant export potential. At present, majority of harvesting and threshing of basmati is accomplished manually because of high quality of grain. Manual harvesting and threshing operation is quite costly and mostly done by hired labour, threshing cost and family labour. Labour in harvesting has become scarce due to industrialization. The commercially available machines for paddy harvesting and threshing are not suitable for basmati varieties because of relatively delicate nature. There is no data available regarding design and operational parameters for harvesting basmati with conventional combine harvester. Therefore, this study has been planned to study the effect of selected design and operational parameters of threshing mechanism of conventional combine harvester for basmati crop and to compare the performance with prevalent practice. Field evaluation of experiment was carried out to assess the influence of independent design variable i.e., arrangement of spikes (AS) and independent operational parameters namely concave clearance (CC) and cylinder speed (CS). The study was aimed to quantify various combining losses viz., extent of grain damage (visible and invisible), unthreshed and clean grain losses in straw walker at different arrangement of spikes, concave clearance and cylinder speed. Initial testing of conventional combine harvester on PUSA Basmati-1121 to reduce the visible as well invisible losses had been carried out at PAU Regional Research Station, Gurdaspur (Punjab) during the year 2017.

Optimization of the operational parameters of a picking-type pneumatic planter using response surface methodology

2019 ◽  
Vol 6 (1) ◽  
Author(s):  
SK PATEL ◽  
JB BHIMANI ◽  
P GUPTA ◽  
BK YADUVANSHI
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Important Variable ◽  
Vacuum Pressure ◽  
Forward Speed ◽  
Operational Parameters ◽  
Seed Spacing ◽  
Lady’S Finger ◽  
Multiple Regression Technique ◽  
Seed Metering Device

Singulation of seeds has been investigated extensively by researchers all over the world and a large number of precision seeding systems with design variations have been developed for different crops. A picking type metering mechanism was developed at CAET, AAU, Godhra, Gujarat, India. The performance of the picking type seed-metering device of a pneumatic planter was investigated under laboratory conditions to optimize the operating parameters for lady's finger seed. The picking of single seed the three operational parameters i.e. hole diameters for the nozzle: 1.0, 1.5, 2.5 and 3.0 mm; forward speed: 0.37, 0.56, 0.83, 1.11 and 1.30 m/s and vacuum pressure: 19.33, 39.32, 43.98, 58.64 and 68.63 kPa were selected for the study. The metering system of the planter was set to place the seed to seed spacing at 300 mm. The response surface methodology (RSM) technique was used to optimize the operational parameters of a precision planter. For optimizing the forward speed, vacuum pressure and nozzle size for developed machine was evaluated by examining the miss index, multiple index, quality of feed index and precision. The data obtained in the experiments were used to develop functions in polynomial form using multiple regression technique. The optimum value was found to be around 0.96 m/s, 36.25 kPa and 2.0 mm of forward speed, vacuum pressure and the holes diameter of nozzle, respectively. The most important variable that governs planting phenomenon is the combination of hole diameter of nozzle and vacuum pressure accounts 89.18 per cent.

scholarly journals Researches on Grain Harvesting Machines

1970 ◽  
Vol 66 (1) ◽  
Author(s):  
Mariana DUMITRU
Keyword(s):  
Forward Speed ◽  
Combine Harvester ◽  
Made In ◽  
Main Factor

The purpose of the paper is to present some researches made on the mechanisms of the combine for cutting, feeding and threshing. There are presented the floating cutter bar, the combine with a spike-tooth cylinder and rotary separation, the combine with dual threshing and separating rotors. Some of the adjustments are made on the finger sensors for cutter bar. One of the most important adjustment is that made in order to reduce harvest loss. Forward speed is one of the main factor in optimizing the performance of a combine harvester. The method used in the paper is that of direct observing and measuring made on different component parts of combines.

scholarly journals Design and Simulation of the Operating Speed Regulation Algorithm of Plot Cabbage Seed Combine Harvester

2020 ◽  
Vol 11 ◽  
pp. 160-169
Author(s):  
Mao Hanping ◽  
Wang Jiahui ◽  
Xing Gaoyong ◽  
Zuo Zhiyu ◽  
Li Qinglin
Keyword(s):  
Association Rules ◽  
Sql Server ◽  
Forward Speed ◽  
Large Delay ◽  
Pid Algorithm ◽  
Speed Regulation ◽  
Control Scheme ◽  
Cabbage Seed ◽  
Combine Harvester ◽  
Feed Volume

Aiming at the problems of the single control scheme, the few aspects of monitoring and diagnosis, and the large delay time of the plot combine harvester, this paper designs the forward speed control algorithm of the plot Chinese cabbage seed harvester. This paper studies the theory of association rules, has used SQL Server to build a database including the job parameters of the main monitoring objects, and has mined the association rules between the job parameters and the feed amount through Analysis Service. Combining the knowledge of association rules and ordinary fuzzy PID algorithm, the article has built a model and performed simulation verification. The results show that the algorithm can adjust the forward speed reasonably and quickly when the feed volume increases.

Influence of Combine Harvester Forward and Reel Speeds on Wheat Harvesting Losses in Gezira Scheme (Sudan)

2021 ◽  
Vol 2 (2) ◽  
Author(s):  
Omer A. Abdalla ◽  
Mohamed. H. Dahab ◽  
Mukhtar M. Musa ◽  
Eltayeb S. N. Babikir
Keyword(s):  
Technology Transfer ◽  
Total Yield ◽  
Forward Speed ◽  
Split Plot ◽  
Combine Harvester ◽  
Plot Design

The present study was conducted at the demonstration farm of Massaed Technology Transfer Center, Gezira State, during 2016/2017, to evaluate the effect of combine harvester forward and reel speed on wheat harvesting losses (total header, processing and total machine losses). Three combine harvester forward speeds (4, 5 and 6 km/h), and three reel speeds (25, 35 and 45 rpm) were used in the experiment, which was arranged in a split plot design with three replications. The results showed that forward speed 4 km/h with reel speed 25 rpm recorded the lowest total header losses (31.8 kg/ha) while the highest losses (90.1 kg/ha) was recorded by the forward speed 6 km/h and reel seed 25 rpm. The lowest processing losses was obtained from the forward speed 6 km/h with reel speed 25 rpm (13.2 kg/ha) while the highest was recorded by the forward speed 4 km/h with the reel speed 45 rpm (38.2 kg/ha). Forward speed 4 km/h with reel speed 25 rpm recorded the lowest total machine losses (56.7 kg/ha) which represents 9.5% of the total yield as compared to 118.0 kg/ha which represents 19.67% of the total yield recorded by the same speed with 45 rpm reel speed. It was concluded that the forward speed 4 km/h with reel speed 25 rpm was appropriate for reducing combined wheat harvesting losses under Gezira Scheme conditions.

Helicopter Hovering Performance

1949 ◽  
Vol 53 (457) ◽  
pp. 67-76
Author(s):  
C. M. Britland
Keyword(s):  
Graphical Form ◽  
Power Relationships ◽  
Forward Speed ◽  
Operational Parameters ◽  
Forward Flight ◽  
Hovering Flight ◽  
Quantitative Form

The purpose of this paper is to indicate in a simple but quantitative form the primary aerodynamic factors governing the performance of a hovering helicopter (since the ability to hover is its prime virtue) and to show how the necessity to operate at a reasonable forward speed restricts that hovering performance. The paper is mainly of interest to potential users of helicopters and to others not actively engaged on helicopter design.The standard power relationships for hovering flight, as developed by Glauert and Squire, are interpreted in graphical form, and the effect of forward flight in limiting the choice of aerodynamic and operational parameters, due to the onset of blade stalling and compressibility, is illustrated by means of boundaries on these graphs. The power requirements in forward flight are not considered.

Noise Source Identification of the Grain Combining Harvester Based on Acoustic Array Test

2020 ◽  
Vol 36 (6) ◽  
pp. 879-890
Author(s):  
Yujun Shang ◽  
Chenglong Wang ◽  
Hongmei Xu ◽  
Shuang Liu ◽  
Wei Jiang ◽  
...  
Keyword(s):  
Source Identification ◽  
Noise Level ◽  
Noise Source ◽  
Noise Pollution ◽  
Rear Side ◽  
List Type ◽  
Frequency Range ◽  
Noise Source Identification ◽  
Combine Harvester ◽  
Acoustic Array

HIGHLIGHTSWe tested the noise of a grain combining harvester using a spiral acoustic array, aiming to identify its main sources and reduce its noise level.The noise of the harvester is mainly concentrated in the frequency range of 1 to 4 kHz.When the power of other devices is cut off, engine is the main noise source. While all devices are in normal working condition, the main source of noise is the header device and the intermediate conveying device.Abstract. The grain combine harvester is an important agricultural equipment with multiple functions of harvesting, threshing, separating, cleaning and grain gathering. As an instantaneous physical pollution, noise has become one of the main causes of modern civilization diseases. The noise generated by the operation of harvesters not only causes harm to the workers, but also leads to environmental noise pollution. Here, we tested the noise of a grain combine harvester using a spiral acoustic array, aiming to identify its main source by noise source identification technology based on the sound pressure distribution and reduce its noise level. The test results show that the noise of the harvester is mainly concentrated in the frequency range of 1 to 4 kHz. When the power of other devices is cut off, the engine is the main noise source, while under normal working conditions of all devices, the main source of noise is the header device and the intermediate conveying device on the front side of the harvester, the threshing device on the rear side, the engine and the threshing device on the left side, and the engine and the header device on the right side. Keywords: Acoustic array technology, Grain combining harvester, Noise source identification, Vibration and noise reduction.

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