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Fabrication and Performance Analysis of Water Vortex Power Plant

[Lingaraj.K.Ritti, Pavana Kumara, Ranganatha, Ambarish M.] Volume 3: Issue 2, August 2016, pp 20 - 24
Abstract— Gravitation water vortex power plants offer a new way of making use of the hydropower potential of smaller waterways without causing damage to river environment and aquatic life. Basically, when an existing weir is replaced by a gravitation water vortex power plant that has no weir, that section of the river is also renatured and revitalized, restoring continuity for fish and other river creatures. Gravitation water vortex power plants are small and robust river power plants. They require a minimum water level of 0.7 meters and a minimum water flow of about 1,000 liters per second. The technology used in gravitation water vortex power plants also called water vortex power plants is completely different from that of conventional small hydropower plants with their ponds and turbines. A water vortex plant consists of a circular tank or basin with a central drain. A symmetrical vortex automatically forms above the drain, as it does when we drain water from a bathtub. The vortex drives a vertically placed rotor turbine. This rotor powers a generator that produces electricity and then transmits it to the power grid. There is no backflow or any increase in water pressure, allowing fish to easily swim upstream and downstream through the power plant. The main aim is to generate clean power using Gravitational vortex model by developing a stable system which consists of vortex basin, channel and other components. This system is tested by varying different parameters like input head, input flow rate, depth of the vortex, turbine blades, orifice diameter and the readings are noted down. These readings are used to calculate power, torque and output flow rates and these calculations are used to study the different variations in power and to note down the maximum value of power achieved by varying the above parameters. 

Index Terms— vortex power plant, power, flow rate, turbine vortex depth 
[1] Sezgin Ersoy “Vortex with the formation of electricity generation and system modelling” International Journal of Environmental Science and Development, Vol. 5, No. 2, April 2014. 
[2] Sujate Wanchat, Ratchaphon Suntivarakom et.al “A parametric study of a gravitational vortex power plant” Advanced materials research vol. 805-806, 2013. 
[3] Tze Cheng Kueh, Shiao Lin Beh et.al “Numerical analysis of water vortex formation for the water vortex power plant,” International Journal of Innovation, Management and Technology, Vol. 5, No. 2, April 2014. 
[4] Subash Dhakal, Susan Nakarmi, Pikam Pun et.al “Development and testing of runner and conical basin for gravitational water vortex power plant,” journal of the institute of engineering vol. 10. 
[5] Sagar Dhakal, A. B. Timilsina et.al “Effect of dominant parameters for conical basin: gravitational water vortex power plant”.

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Design and Analysis of Torque Handling Capacity of Slot Headed Grub Screw

[Ravinarayan.R.Rao, Lingaraj.K.Ritti, Pavana Kumara], Volume 3: Issue 2, August 2016, pp 13-19
Abstract—The main objective is to optimization of strength of flat slotted screw head with different slot shapes. These slot shapes are modeled on Solid Edge ST2, mechanical design software and analyzed in ANSYS 14.5, a finite element analysis (FEA) software. The model consists of 3 slotted flat headed grub screw profile with their corresponding screw driver profile. The aim was to obtain the maximum torque handling capacity from among the identified slot shapes. For this purpose, an iterative process involving design up gradation and finite element analysis was done. To validate the model, testing was conducted on the specimen in the Torsion Testing Machine and results were compared. The study shows that a variation in the slot shape of a screw can influence the torque handling capacity Measurement of torque carrying capacity of flat headed screws by varying the slot angles and identify the one that withstands higher torque. The primary objective is to conduct torque test on screw specimen with different slot angles and to identify the slot shape angle that withstands higher torque, and to determine the variation of torque carrying capacity with slot angles, and to carry out Finite Element Analysis (FEA) and to compare the experimental results The purpose of optimizing the slot shape design, an iterative process was carried on. Repetitive analysis on ANSYS® with a change in the design in SOLIDEDGE ST2 was conducted to make sure that failure occurs on the screw head. Methods followed to complete the tasks Identification of slot shape, Design of a grub screw, Holder and Driver Material Selection and properties, Fabrication of specimen, Experimentation conduct using Torsion Machine, Analysis using ANSYS workbench.

Index Terms—Grub screw, Finite Element Method, Torsion machine, Optimization, ANSYS.
[1] Jigar Patel, Sumant Patel, Snehal Patel “A Review On Numerical And Experimental Study Of Screw Conveyor”, International Journal of Advanced Engineering Research and Studies E-ISSN2249–8974. 
[2] Uematsu,T., Nakamura,S., Hino, Y. and Suyama, H. „„A study of the screw conveyor.‟‟ Trans. JSME, 26(162), 180– 186. (1960) 
[3] Don McGlinchey “Bulk Solids Handling: Equipment Selection and Operation” Page No. 197-219 Blackwell Publishing Ltd. ISBN: 978-1-405-15825-1 , 2008 
[4] Chris Rorres “The Turn Of The Screw: Optimal Design Of An Archimedes Screw”, Page : 72-80, Journal Of Hydraulic Engineering, January 2000 
[5] Alma Kurjak, "The vertical screw conveyor- powder properties and Screw conveyor design", SE-221 00 Lund, Sweden, January 2005 
[6] Yoshiyuki Shimizu, Peter A.Cundall “Dem Simulations Of Bulk Handling By Screw Conveyors” J. Eng. Mech. 127:864-872. 2001

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Design and Fabrication of Paddy (Rice) Transplanting Machine

[Sanket V. Balbudhe, Dipak H. Baghele, Dipak N. Shirke, Mayur C. Gaikwad, Pratik S. Bobde, Umeshkumar G. Bisen, Prof. H. M. Bansod] Volume 3: Issue 1, April 2016, pp 9 - 12
Abstract—Agriculture is the most important sector of the Indian economy. It is the most important source of employment for the majority of the work force in the country. A major population in India is engaged in agriculture. Among that highest percentage was in paddy sector. Rice is the major stable food of the country. Releasing of work force to sectors other than agriculture, it is important to develop the country. To release the work force in paddy sector mechanization plays a big role. To feed growing population is a huge challenge. Mechanization of paddy sector will lead to higher productivity with releasing of work force to other sectors. The objective of this project is to design a paddy transplanting mechanism to transplant paddy seedlings by small scale farmers in the country. 

Index Terms—Paddy transplanter , planting of rice.
[1] M. V. Manjunatha, B. G. Masthana Reddy, S. D. Shashidhar And V. R. Joshi, ―Studies on the performance of self-propelled rice transplanter and its effect on crop yield‖, University of Agricultural Sciences, Karnataka, India ; September, 2008
[2] K. R. Kakumanu, K. Gurava Reddy, K. Palanisami, Udaya Sekhar Nagothu, ―Machine Transplantation: Labour and Water Saving Technology in Paddy Cultivation‖, ISSN 0976-4550 Volume-06, Issue – 04 December-2015
[3] The Cereal Systems Initiative for South Asia (CSISA):Operational Manual for Mechanical Transplanting of Rice, 2015.
[4] Traditional System Of Rice Cultivation In Chhattisgarh, India (BIASI) Model Training Course on Rice Production Technology, Feb., 22-29, 2012.
[5] B.D. Shiwalkar, ―Design Data Book‖, Denett & Co. publication, 2014 Edition.
[6] R.S. Khurmi, J.K. Gupta, ―Theory of machines‖, S. Chand publication, First Edition 2004.
[7] P. Dhananchezhiyan, C. Divaker Durairaj and S. Parveen, ―Development Of Nursery Raising Technique For System Of Rice Intensification Machine Transplanting‖, African journal of agricultural Research; 5 August 2013.

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