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Sundar Singh Sivam, S. P.
- Experimental Investigation of Heat Transfer Study on Plate Fin Heat Exchangers with Wavy Fins
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Authors
Affiliations
1 Department of Mechanical Engineering, SRM University, Kattankulathur - 603203, Kancheepuram District, Tamil Nadu, IN
1 Department of Mechanical Engineering, SRM University, Kattankulathur - 603203, Kancheepuram District, Tamil Nadu, IN
Source
Indian Journal of Science and Technology, Vol 9, No 37 (2016), Pagination:Abstract
Objectives: This study investigates the variation of heat transfer parameters using wavy fin located in the plate heat exchanger. Methods/Statistical Analysis: Velocity and temperature relations, fanning friction factor for iso-temperature and Colburn factor are evaluated for different flow rates of Reynolds Number from 200 to 2000 and its various fin pitches within 9 mm respectively. Similarities were found between this experimental data and semi empirical correlations of Plate Heat Exchanger. Findings: The various parameters are evaluated using this experimental setup and we obtained the optimum j/f for swirl flow regime with Reynolds Number of around 200 to 210. The general correlations for friction factor and Colburn factor were derived by multiple linear regression analysis. Application/Improvements: This studies show the periodic growth of parameters in the wall region of cross section of cross flow heat exchanger. Also we obtained the higher heat transfer co-efficient by using wavy fin with reasonable pressure fall.Keywords
Correlations, Heat Transfer, Plate Heat Exchangers, Wavy Fins.- Wind Energy Recovery from a Cooling Tower with the Help of a Wind Turbine Generator
Abstract Views :162 |
PDF Views:0
Authors
Affiliations
1 Department of Mechanical Engineering, SRM University1-4, Kancheepuram District, Kattankulathur - 603203, Tamil Nadu, IN
1 Department of Mechanical Engineering, SRM University1-4, Kancheepuram District, Kattankulathur - 603203, Tamil Nadu, IN
Source
Indian Journal of Science and Technology, Vol 9, No 37 (2016), Pagination:Abstract
Objectives: To increase the efficiency and the power output of the Energy recovery system. Methods/Statistical Analysis: A nozzle of suitable material is installed above a cooling tower of a certain height. The nozzle is used to improve the speed of the exhaust air coming out of the cooling tower exhaust. A horizontal axis wind turbine is placed over the top of the nozzle such that it is parallel to the cooling tower. The wind turbine selected is of a size slightly less than the outlet of the nozzle. Findings: A five blade wind turbine is selected as it can minimize the air wastage. The nozzle outlet diameter is slightly less than the nozzle inlet diameter so as to increase the speed at which the exhaust air flows. The turbine rotates at a much higher speed when a nozzle is attached. The performance of the wind turbine with the help of a nozzle is improved. Application/Improvements: The performance of the system is tested in the laboratory with the help of a prototype design.Keywords
Cooling Towers, Exhaust Fan, Nozzle, Power, Velocity, Wind Turbine.- Orbital Cold Forming Technology - Combining High Quality Forming with Cost Effectiveness - A Review
Abstract Views :167 |
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Authors
Affiliations
1 Department of Mechanical Engineering, SRM University, Kancheepuram District, Kattankulathur - 603203, Tamil Nadu, IN
1 Department of Mechanical Engineering, SRM University, Kancheepuram District, Kattankulathur - 603203, Tamil Nadu, IN
Source
Indian Journal of Science and Technology, Vol 9, No 38 (2016), Pagination:Abstract
Objectives: This review presents a short communication of cold orbital forging process, its characteristics and compare with classical forging. Methods/Statistical Analysis: Orbital forging have special progressive motion permits the contact space between tool and workpiece to be smaller and thus, lowers forming load and friction. Therefore orbital forming in some cases makes it potential to provide the specified part in exactly one operation, whereas in classical forging quite one operation would be needed. Findings: Cold orbital forming is more useful and preferable in comparison to other manufacturing processes as we can manufacture more number of gears with better surface finish in less time. Thus, cold orbital forming has much higher efficiency. The process is less time consuming and saves labor costs too. Hence, better finished gears can be manufactured in bulk and it also turns out to be more economical than the other manufacturing processes. Current review illuminates the techno economical advantages of the orbital forming process and how advantageous it is over classical forming process. Application/Improvements: This review includes the forming time and distribution of stress and strain on the workpiece and also the die.Keywords
Cold Orbital Forging, Conventional Forging, Forming Time.- Frequently used Anisotropic Yield Criteria for Sheet Metal Applications: A Review
Abstract Views :177 |
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Authors
S. P. Sundar Singh Sivam
1,
V. G. Uma Sekar
1,
K. Saravanan
2,
S. RajendraKumar
1,
P. Karthikeyan
1,
K. Sathiya Moorthy
1
Affiliations
1 Department of Mechanical Engineering, SRM University, Kattankulathur, Chennai - 603203, Tamil Nadu, IN
2 Department of Mechatronics Engineering, SRM University, Kattankulathur, Chennai - 603203, Tamil Nadu, IN
1 Department of Mechanical Engineering, SRM University, Kattankulathur, Chennai - 603203, Tamil Nadu, IN
2 Department of Mechatronics Engineering, SRM University, Kattankulathur, Chennai - 603203, Tamil Nadu, IN