scholarly journals Performance Evaluation of Single Row-Low Horse Power Tractor Operated Vegetable Transplanter

2020 ◽  
pp. 37-44
Author(s):  
Mattaparthi Lakshmi Durga ◽  
A. Srinivasa Rao ◽  
A. Ashok Kumar
Keyword(s):  
Performance Evaluation ◽  
Field Capacity ◽  
Payback Period ◽  
Single Row ◽  
Low Speed ◽  
Acceptable Range ◽  
Horse Power

Mini tractor (18 hp) operated single row vegetable transplanter was developed for Tomato and Brinjal crop transplanting. A simple rotating magazine type metering system was attached to the transplanter. The performance evaluation was done in was 20× 10 m at 1.0, 1.5 and 2.5 km/h. But at low speed i.e 1.0 km/h the results were in acceptable range. The main parameters of the developed transplanter were planting angle and missing percentage. Planting angle was 3.02 and 2.45º, similarly missing percentage was 9.5 and 8.78 % for Tomato and Brinjal respectively. The field-capacity and transplanting-efficiency were obtained 0.05 ha h-1 and 83.3% respectively. Breakeven area obtained as 0.42 ha and payback period was 44.71 h.

Experimental Low-Speed Performance Evaluation of Sensorless Passive Algorithms for SPMSM

2021 ◽  
pp. 1-1
Author(s):  
Alessandro Benevieri ◽  
Mario Marchesoni ◽  
Massimiliano Passalacqua ◽  
Luis Vaccaro
Keyword(s):  
Performance Evaluation ◽  
Low Speed ◽  
Speed Performance

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

scholarly journals Performance evaluation of manual operated single row weeder for groundnut crop

2016 ◽  
Vol 7 (1) ◽  
pp. 45-52
Author(s):  
RAM BHAVIN ◽  
M.S. KHARDIWAR ◽  
SHAILENDRA KUMAR ◽  
B.P. SOLANKI
Keyword(s):  
Performance Evaluation ◽  
Single Row

Performance evaluation of single row tractor operated carrot digger

2020 ◽  
Vol 44 (04) ◽  
pp. 1-7
Keyword(s):  
Power Transmission ◽  
Field Capacity ◽  
Effective Field ◽  
Cost Ratio ◽  
Single Row ◽  
Manual Method ◽  
Benefit Cost Ratio ◽  
Operational Variables ◽  
Labour Requirement ◽  
Break Even Point

Harvesting is one of the most critical operation in carrot cultivation because it is labour intensive (350 – 450 man-h/ha) and time consuming for the farmers. The present study was undertaken to evaluate the performance of single row tractor operated carrot digger designed by department of Farm Machinery and Power Engineering, COAE&T, CCS Haryana Agricultural University, Hisar, Haryana, India. The developed digger consisted of a digging, conveying, de-topping, collector and power transmission units. The carrot digger can be operated with 35 horse power tractor. It was evaluated under three variables viz., three digging blade angles (15°, 18°, 21°), three conveyor angles (25°, 35°, 45°) and three shoot catch heights (2, 4, 6 cm). The optimum value of variables obtained for operation of carrot digger were blade angle of 21°, conveyor angle of 250 and shoot catch height of 2 cm. Effective field capacity of the digger was 0.11 ha h-1 with field efficiency of 61.70 %. The digging efficiency, cut carrots, bruised carrots, picking efficiency and cutting efficiency of de-topping unit were 100, 0.62, 0.90, 62.29 and 100%, respectively at optimized value of operational variables. The labour requirement with developed carrot digger and manual method of harvesting was found 27 and 450 man-h ha-1, respectively. The operational cost of carrot digger was found Rs. 8242 ha-1 and it saves time and cost of operation in comparison to manual method of carrot harvesting. The break-even point, payback period and benefit cost ratio were 234 hours, 2.21 years and 1.56, respectively when operated for 400 hours annually. The carrot digger works better if carrots are sown in single row on the ridges rather than the broadcasting method.

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