scholarly journals Field Performance Evaluation of a Combined Cultivator Developed at Kenana Sugar Company- Sudan

2021 ◽  
Vol 2 (3) ◽  
Author(s):  
Mohamed H. Dahab ◽  
Mohamed H. Numan ◽  
Omer A. Abdalla
Keyword(s):  
Performance Evaluation ◽  
Fuel Consumption ◽  
Reducing Power ◽  
Operation Time ◽  
Field Performance ◽  
Field Capacity ◽  
Fertilizer Placement ◽  
Power Requirement ◽  
The Individual ◽  
Drawbar Pull

Sugar cane production requires a number of operations to be carried out in the field through number of implements and machines. Therefore, time consuming and required large amount of energy. A combined field cultivator was designed in Kenana agricultural implements factory (KAIF) to carry out at one time multi operations, cultivation, furrow-reforming and Fertilizer placement. This is to increase field productivity, reduce farm power and lower operation time and cost. The combined implement was evaluated in Kenana cultivation fields and compared with the three individual implements, rigid tine cultivator, furrow reformer and fertilizer applicator. The measured parameters were drawbar pull, power requirements, field capacity, fuel consumption and total time in the field. The results showed highly significant differences at 1% level between the different implements for the field capacity, fuel consumption and significant differences at 5% for the drawbar pull. Power requirement in (kW) for the combined cultivator was 77% of those individual implements. Total time per feddan to accomplish the required operations by the combined cultivator was 57% of that required by the individual implements. Fuel consumption was reduced to 57% when combined implement was used compared to that consumed by individual implements. It was concluded that the combined cultivator was effective in increasing field productivity and reducing power and cost of operations.

scholarly journals The Effect of Some Primary Tillage Equipment on Performance Efficiency Under Two Level of Soil Moisture Content and Different Machinery Unit Speeds

2018 ◽  
Vol 7 (2) ◽  
pp. 206-218
Author(s):  
Yasir A. Alsayyah ◽  
Hussein A. Jebur
Keyword(s):  
Soil Moisture ◽  
Moisture Content ◽  
Fuel Consumption ◽  
Soil Moisture Content ◽  
Block Design ◽  
Field Capacity ◽  
Significant Difference ◽  
Primary Tillage ◽  
Loam Soil ◽  
Drawbar Pull

A field experiment was conducted in the experiment fields of the college of agriculture - University of Baghdad – Abu Ghraib , 2016 in a silt clay loam soil , to Evaluate the effect of some primary tillage equipment and two of levels of soil moisture content in some of performance efficiency indicator for different forward speed , ArmaTrac 845e and ITM 285 New tractor with moldboard and chisel and sweep plow as a machinery unit have been used in this study . Two levels of soil Moisture content include (18 – 20 % ) and (14 – 16%) represented main plot , three types of plow ( moldboard , chisel and sweep) represent sub plot , five machinery speeds included ( 1.5 , 2.53 , 3.75 , 5.3 and 6.71 km.hr-1 ) represent sub plot , Slippage percentage (%) , fuel consumption (L.hr-1) , drawbar pull (KN) , Field capacity (he.hr-1) are have beenbeen measured in this study  . And the results have been analyzed by using the order of the spilt - spilt - plot with randomize complete block design with three replicates and tested by the way averages less significant difference and the level of probability of 0.05 . The results show that : the soil  moisture content ( 14 – 16 % ) has got a less value of slippage percentage % , fuel consumption L.hr-1 , drawbar pull Kn and higher field capacity ha.hr-1 , and sweep plow has got a less value of slippage percentage , fuel consumption and drawbar pull , and the chisel plow has got a higher field capacity , and when the tractor speed is increased it leads to aincrease in the slippage and fuel consumption and drawbar pull and field capacity will be anincrease .

scholarly journals Operational and energy performance of the tractor-scarifier assembly: Tires, ballasting and soil cover

2019 ◽  
Vol 23 (10) ◽  
pp. 800-804 ◽  
Author(s):  
José E. L. Lopes ◽  
Carlos A. Chioderoli ◽  
Leonardo de A. Monteiro ◽  
Mara A. M. dos Santos ◽  
Eric H. C. B. van Cleef ◽  
...  
Keyword(s):  
Fuel Consumption ◽  
Soil Cover ◽  
Field Capacity ◽  
Energy Performance ◽  
Specific Fuel Consumption ◽  
Operative Field ◽  
Power Requirement ◽  
Experimental Area ◽  
Rolling Surface

ABSTRACT The heights of tire claws, tractor ballasting and soil cover can influence the operational and energy performance of the tractor-scarifier assembly. The objective of this study was to analyze the operational and energy performance of the tractor-scarifier assembly as a function of the heights of the tire claws, ballasting and rolling surface. The experiment was conducted at the experimental area of the Fazenda Experimental do Vale do Curu of the Universidade Federal do Ceará in Pentecoste municipality, CE, Brazil. The experiment was carried out in a randomized block in a 2 × 2 × 2 factorial arrangement with four repetitions. The treatments comprised two tire claw heights (T1-28% and T2-100%), two ballasts (B1-100% of solid and 75% liquid weights and B2 - 0% of solid and liquid weights), and two soil surfaces (S1 - soil with 4200 kg of straw ha-1 and S2 - mobilized soil). Worn tires provided a lower bar force (12.88 kN) and power requirement (20.06 kW) and a greater effective and operative field capacity of the tractor-scarifier assembly. The lowest slippage of the front wheels of the tractor was recorded for the worn tires (4.81%).For the rear wheels, slippages were found on the new tires (10.96%), and a higher speed of displacement was found for worn tires (5.54 km h-1). Lower specific fuel consumption was found for the mobilized soil (534.68 g kWh-1); furthermore, the hourly consumption of fuel and the consumption per area were not significantly affected by the treatments analyzed.

Development of an Industry Test Facility and Qualification Process for ILI Technology Evaluation and Enhancements: Performance Evaluation Phase

2018 ◽  
Author(s):  
Pablo Cazenave ◽  
Ming Gao ◽  
Hans Deeb ◽  
Sean Black
Keyword(s):  
Performance Evaluation ◽  
Technology Development ◽  
New Technology ◽  
Test Facility ◽  
Technology Evaluation ◽  
Team Members ◽  
Integrity Assessment ◽  
Evaluation Phase ◽  
The Individual ◽  
Pull Tests

The project “Development of an Industry Test Facility and Qualification Processes for in-line inspection (ILI) technology Evaluation and Enhancements” aims to expand knowledge of ILI technology performance and identify gaps where new technology is needed. Additionally, this project also aims to provide ILI technology developers, researchers and pipeline operators a continuing resource for accessing test samples with a range of pipeline integrity threats and vintages; and inline technology test facilities at the Technology Development Center (TDC) of Pipeline Research Council International, Inc. (PRCI), a PRCI managed facility available for future industry and PHMSA research projects. An ILI pull test facility was designed and constructed as part of this project based on industry state-of-the-art and opportunities for capability improvement. The major ILI technology providers, together with pipeline operator team members, reviewed the TDC sample inventory and developed a series of ILI performance tests illustrating one of multiple possible research objectives, culminating in 16-inch and 24-inch nominal diameter test strings. The ILI technology providers proposed appropriate inspection tools based on the types of the integrity threats in the test strings, a series of pull tests of the provided ILI tools were performed, and the technology providers delivered reports of integrity anomaly location and dimensions for performance evaluation. Quantitative measures of detection and sizing performance were confidentially disclosed to the individual ILI technology providers. For instances where ILI predictions were outside of claimed performance, the vendors were given a limited sample of actual defect data to enable re-analysis, thus demonstrating the potential for improved integrity assessment with validation measurements. In this paper, an evaluation of the ILI data obtained from repeated pull-through testing on the 16 and 24-inch pipeline strings at the TDC is performed. The resulting data was aligned, analyzed, and compared to truth data and the findings of the evaluation are presented.

scholarly journals Modeling of Tractor Fuel Consumption

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2300
Author(s):  
Bronisław Andrzej Kolator
Keyword(s):  
Fuel Consumption ◽  
Soil Conditions ◽  
Simulation Studies ◽  
Working Capacity ◽  
Operational Parameters ◽  
System A ◽  
The Individual ◽  
Adjustment System ◽  
Unit Performance ◽  
Efficiency Indicators

In this paper, the energy diagnostic of tractor performance consists in evaluating the energy (fuel consumption per hectare—dm3 ha−1) for a given agricultural operation and in combining it with working capacity, also called productivity (area productivity—ha h−1). One of the methods of solving this problem is the identification of the functioning process of the machine unit. A model of the process of the machine unit performance was developed, considering the operation of the rear linkage system of the implement with the force control adjustment system. In order to analyze the system, a mathematical model of the system function was built: tractor-implement-soil, defining the physical connections and interdependencies between the individual subsystems of the system. Based on this model, a simulation model was developed and implemented in the Matlab/Simulink environment. The Simulink package was used to test the performance of the machine set. The efficiency indicators according to the adopted criteria were calculated in the evaluation block. To evaluate the process, the technical and operational parameters of the tractor, the type and parameters of the tool, and soil properties were taken into account. The results of simulation studies obtained on a validated model are consistent with experimental data from appropriate soil conditions.

Energy Efficiency Based Operation of Compressed Air System on Ships to Reduce Fuel 163 Consumption and CO2 Emission

2019 ◽  
Vol 161 (A2) ◽  
Keyword(s):  
Energy Efficiency ◽  
Fuel Consumption ◽  
Unit Cost ◽  
Leakage Rate ◽  
Compressed Air ◽  
Power Requirement ◽  
Important Indicator ◽  
Operating Load ◽  
Air System ◽  
Potential Energy Saving

Energy efficiency subject has been gaining importance in maritime sector. The compressed air is a valuable energy source in operational manner, by the reason of intrinsic lack of efficiency in pressurization process. Operational pressure and leakage rate are the major variables which affect operational efficiency of the system. This study aims to reveal potential energy saving for the compressed air system. To this end, several pressure ranges, 29-30 bars to 14-18 bars, and different leakage rates 2.4% to 45% are evaluated. After the data was obtained from ships, thermodynamic calculations had been carried out. Optimization of pressure saves 47.3% in daily power requirement, 58,2% in compressed air unit cost, 18.4 and 57.4 tons of reduction in fuel consumption and CO2 emissions in a year respectively. High leakage rates can cause 2.7 times more power and fuel consumption. Finally, operating load, as an important indicator of compressor, makes imperfections identifiable.

scholarly journals Performance evaluation of power-operated reapers for harvesting rice at farmers’ field

2018 ◽  
Vol 16 (1) ◽  
pp. 144-150
Author(s):  
Md Ashraful Alam ◽  
Anwar Hossen ◽  
AKM Saiful Islam ◽  
Monjurul Alam
Keyword(s):  
Performance Evaluation ◽  
Economic Performance ◽  
Production Cost ◽  
Field Capacity ◽  
Production Costs ◽  
High Wage ◽  
Harvesting Time ◽  
Actual Field ◽  
Field Efficiency ◽  
User Friendly

Harvesting is one of the major labor intensive works in rice cultivation. Appropriate harvesting machinery is urgently needed to reduce labor and production costs. Production cost of rice becomes high due to labor shortage and high wage rate during harvesting time. Techno-economic performance of Korean self-propelled reaper (KR), China self-propelled reaper (CR) and BRRI reaper (BR) were evaluated in order to identify the field constrains and problems of the reapers at Mithapukur of Rangpur, Bangladesh during Aman season of 2013. The actual field capacities of the KR, CR and BR were found 0.18, 0.17 and 0.15 ha h–1with the corresponding field efficiency of 55, 68 and 56%, respectively. The variation of field capacity among the models was due to turning time losses, weight of the reaper and operator’s skill. The fuel consumption of the reapers was 4.11, 2.61 and 8.39 l ha–1 for KR, CR and BR, respectively. The shattering loss of paddy harvesting was 1.66, 1.50 and 1.45% for KR, CR and BR, respectively. The break-even area of the reapers was 9.15, 7.82 and 8.43 ha yr-1 for KR, CR and BR, respectively. It is evident that the reaper could be used successfully as labor saving and user friendly technology to eliminate post-harvest problems in Bangladesh.J. Bangladesh Agril. Univ. 16(1): 144-150, April 2018

Field performance evaluation and genetic integrity assessment in Argyranthemum ‘Yellow Empire’ plants recovered from cryopreserved shoot tips

2015 ◽  
Vol 51 (5) ◽  
pp. 505-513 ◽  
Author(s):  
Zhibo Zhang ◽  
Gry Skjeseth ◽  
Abdelhameed Elameen ◽  
Sissel Haugslien ◽  
Astrid Sivertsen ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Field Performance ◽  
Shoot Tips ◽  
Genetic Integrity ◽  
Integrity Assessment

scholarly journals El juicio de residencia español, antecedente del juicio de responsabilidad y no del juicio de amparo mexicano

2014 ◽  
pp. 271
Author(s):  
Odilisa Gutiérrez Mendoza
Keyword(s):  
Performance Evaluation ◽  
Civil Liberties ◽  
Main Function ◽  
Direct Relation ◽  
Government Employees ◽  
Public Office ◽  
Spanish Law ◽  
Derechos Humanos ◽  
El Sistema ◽  
The Individual

En el sistema jurídico mexicano, específicamente en lo referente a las responsabilidades de los servidores públicos, la influencia del derecho español es claro; siendo su antecedente el juicio de residencia, que tenía como función principal sancionar a los funcionarios que ocupaban un cargo público en las tierras conquistadas y que se desempeñaban en contravención a las disposiciones emitidas por la corona española. El objetivo principal era la sanción a los servidores por el mal desempeño de las funciones encomendadas. En el juicio de responsabilidad de los servidores públicos en México, la finalidad es la misma que el de residencia española, incluso con sanciones similares a las de este último, las cuales son desde la amonestación hasta la inhabilitación para ocupar un cargo público. Mucho se ha comentado con relación a que el juicio de residencia español, es el antecedente del juicio de amparo mexicano, sin embargo no lo considero así, pues el juicio de amparo tiene como objetivo principal el resarcir a los individuos en la violación de sus derechos humanos cuando alguna autoridad los ha vulnerado, es decir el juicio de amparo gira en la protección del individuo, mientras que el juicio de residencia gira en torno a la evaluación del desempeño del funcionario, pues está dirigido a sancionarlo por su mal desempeño; de ahí que considero no exista relación directa entre ambos procedimientos.In the Mexican legal system, specifically regarding the responsabilities of government employees, the influence of the Spanish law is clear, being it´s precedent the residence trial, which main function was to punish officers who held public office in conquered lands and violated dispositions issued by the Spanish crown. The main objective was to punish public officers for their poor fulfillment of the assigned functions. The Mexican liability of public officers trial has the same purpose as the Spanish residence trial, it even has similar sanctions which can go from admonitions to becoming ineligible for public office. Much has been said regarding the fact that the Mexican amparo trial (protection of civil liberties) finds its precedents on the Spanish residence trial, however I must disagree, mainly because the amparo´s trial main objective is to compensate the individuals for suffering violations to their human rights by any authority, in other words the amparo trial is mainly about the individual´s protection, while the residence trial focuses on the performance evaluation of the officers, for it aims to sanction the officers for their performance; therefore I do not consider there is a direct relation between both procedures.

scholarly journals CALCULATION OF FIELD CAPACITY AND FUEL CONSUMPTION OF MOBILE MACHINERY WITH BUNKERS, TANKS OR OTHER CONTAINERS FOR AGRICULTURAL GOODS

2021 ◽  
pp. 19-28
Author(s):  
Chavdar Vezirov ◽  
Atanas Atanasov ◽  
Nicolae-Valentin Vladut
Keyword(s):  
Fuel Consumption ◽  
North American ◽  
Field Capacity ◽  
Automatic Calculation ◽  
East European ◽  
Needed Information ◽  
Mobile Machinery ◽  
Fertilizer Solution

A method and procedure for automatic calculation of field capacity and fuel consumption of mobile machinery with tanks, hoppers and bunkers is suggested. They are based on a combination of two well-founded approaches: East-European and North-American. To increase its calculation area some applications for machines with containers as grain, fertilizer, solution, etc. are added. An example of five linked field operations, namely potato transportation, fertilization, spraying, planting and harvesting is presented. A list of needed information with relations between them and main indices of agricultural aggregates is prepared. For convenience and objectivity calculations are automated with spreadsheets.

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