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Seema V. Aware ¹, Vijay V. Aware ¹, Samel Kushal ¹, Puja Pachbhai ¹

Affiliations
1 College of Agricultural Engineering and Technology, Dapoli, Ratnagiri (M.S.), IN

Abstract

The smallest hydroelectric systems, with power generation below 5 kW is termed as pico-hydro power. The Konkan region of the Maharashtra state, receives a very heavy rainfall, to the tune of 3000 to 4500 mm from June to September. Due to high intensity, duration and frequency of the rainfall, the electricity transmission lines get damaged due to falling of trees or bad weather. The rainwater which falls on the roof tops of the houses has a great pico-scale hydroelectric potential. This rainwater, which falls on roof tops possesses the potential energy. If this water is made to fall on a turbine with a high velocity, electricity can be generated. Houses in Konkan region, having an average height of 8 m, or more (ground floor, first floor and roof) and assuming a roof water collection area of about 10×10 m; by calculation, it is observed that, there is a potential to generate about 50 to 60 W of hydro power. This power can lit four to five LED lights of 10 W capacities each.

Keywords

Design, Development, Pelton Wheel, Pico-Hydro Power, Generation Unit.

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Seema V. Aware ¹, Vijay V. Aware ¹, Akshay Jadhav ¹, Sujata Raut ¹

Affiliations
1 College of Agricultural Engineering and Technology, Dapoli, Ratnagiri (M.S.), IN

Abstract

The pelton turbine was developed at College of Agril. Engineering and Technology, Dapoli. It was connected to permanent magnet direct current motor acting as generator by using belt and pulley arrangement. The developed pico hydro electric generator was used to generate electricity from 1 lps discharge and 1 m head. It was found working satisfactory with development of 42 W power.

Keywords

Modification, Performance Evaluation, Pico-Hydro Power, Generation Unit.

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N. A. Shirsat ¹, S. S. Chavan ¹, V. V. Aware ¹, P. U. Shahare ¹, K. G. Dhande ¹, Seema V. Aware ²

Affiliations
1 Department of Farm Machinery and Power, College of Agricultural Engineering and Technology, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Ratnagiri (M.S.), IN
2 Department of Physics and Electronics, College of Agricultural Engineering and Technology, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Ratnagiri (M.S.), IN

Abstract

Rice (Oryza sativa L.) is one of the most leading food crops in the world within the worldwide-cultivated cereals, and is second only to wheat in terms of annual food consumption. Rice is major crop of Konkan region of Maharashtra. Weeds are the major problem in rice crop. Weeding operation in rice field is very tedious and drudgeries and time consuming operation as it done manually. Hence, to reduce the drudgery and force requirement, it is necessary to develop women friendly cono weeder as per the feedback received from women workers with ergonomic consideration. The actual field capacity for cono weeder (DBSKKV) and cono weeder 1 (Double handled), cono weeder 2 (Single handled) were found to be 0.0094 ha/h, 0.0110 ha/h and 0.0133 ha/h. The field efficiency for cono weeder (DBSKKV) and cono weeder 1 (Double handled), cono weeder 2 (Single handled) were found to be 56.98 per cent, 64.77 per cent and 79.35 per cent, respectively. The weeding efficiency of cono weeder (DBSKKV) and cono weeder 1 (Double handled), cono weeder 2 (Single handled) were found to be 74.01 per cent, 79.82 per cent and 84.58 per cent, respectively. The cost of cono weeder (DBSKKV) and developed cono weeder 1 (Double handled), cono weeder 2 (Single handled) were Rs. 1150/-, Rs.800/- and Rs.785/-, respectively. The operating cost of cono weeder (DBSKKV) and developed cono weeder 1 (Double handled) and cono weeder 2 (Single handled) were Rs. 24.74/-h, Rs. 24.06/-h, Rs. 24.04/-h, respectively.

Keywords

Cono Weeder, Paddy, Hand Tool.

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V. V. Aware ¹, Seema V. Aware ², P. U. Shahare ³, N. A. Shirsat ³, M. R. Patil ³, Chhaya R. Kavitkar ³

Affiliations
1 Department of Farm Machinery and Power, College of Agricultural Engineering and Technology, Dr. B.S. Konkan Krishi Vidyapeeth, Dapoli, Ratnagiri (M.S.), IN
2 Department of Physics and Electronics, College of Agricultural Engineering and Technology, Dr. B.S. Konkan Krishi Vidyapeeth, Dapoli, Ratnagiri (M.S.), IN
3 Department of Farm Machinery and Power, College of Agricultural Engineering and Technology, Dr. B.S. Konkan Krishi Vidyapeeth, Dapoli, Ratnagiri (M.S.), IN

Abstract

Dried arecanut are dehusked at farmer's house or at small scale processing units by manual labour using country kitchen tool having a wooden plank and curved MS blade. Traditional dehusking method is time consuming, highly labour intensive, uneconomical and above all very unsafe for fingers and palms. The developed pedal operated arecanut dehusker was evaluated with nine female workers to check the suitability of the machine for women workers. Average age, weight and stature of the subjects were 26.1(± 8.5) years, 46.7(± 9.6) kg and 158(± 6) cm, respectively. While average HR max and VO₂ max were 193.9 (±8.5) bpm and 1.47(± 0.3)l/min, respectively. The mean heart rate, oxygen consumption rate and energy expenditure rate for nine subjects were 136.6 bpm, 0.8 l/min and 16.56 kJ/min, respectively. The work is under 'Very heavy' category (Sen, 1969).

Keywords

Ergonomic Evaluation, Arecanut Dehusker.

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V. V. Aware ¹, P. U. Shahare ², N. A. Shirsat ², Seema V. Aware ³

Affiliations
1 Department of Farm Machinery and Power, College of Agricultural Engineering and Technology, Dr. B.S. Konkan Krishi Vidyapeeth, Dapoli, Ratnagiri (M.S.), IN
2 Department of Farm Machinery and Power, College of Agricultural Engineering and Technology, Dr. B.S. Konkan Krishi Vidyapeeth, Dapoli, Ratnagiri (M.S.), IN
3 Department of Physics and Electronics, College of Agricultural Engineering and Technology, Dr. B.S. Konkan Krishi Vidyapeeth, Dapoli, Ratnagiri (M.S.), IN

Abstract

The Vaibhav Sickle developed by Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli was modified based on users feedback, anthropometric data and available scientific literature. The cutting surface length, chord length of available Vaibhav sickle was 200 and 180 mm respectively, hence the CS/CL ratio was 1.11. The blade concavity was 39. The average diameter and length of the handle were 32 mm and 136 mm, respectively. The angle of blade with handle was 130 deg. In modified Vaibhav sickle, the cutting surface length, chord length were 225 mm and 210 mm, respectively, hence the CS/CL ratio was 1:07 and blade concavity was 30. The effective serration pitch and angle between blade and handle were 0.2 cm and 160 deg, for both sickles. The comparative ergonomic evaluation of existing and modified sickles was carried out. The field capacity of improved Vaibhav sickle was found to be 112 m2/h which was 13.1 per cent higher than existing Vaibhav sickle (99 m²/h). The working heart rates of female workers while using improved and existing Vaibhav sickles were 120.3 and 128.5 beats/ min, respectively while the work pulse for those sickles were 36.15 and 46 beats/min. The center of mass was located at distance of 7.3 cm away from the line of action in case of Vaibhav sickle and in case of improved sickle it was located very close to the line of action. This improved the balance of sickle and there is no lateral twisting to the wrist. The performance of improved Vaibhav sickle is better in terms of its field capacity, ergonomic design and balancing.

Keywords

Serrated Sickle, Drudgery.

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