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Dr. SENTHIL KUMARAN SELVARAJ
Department of Manufacturing Engineering, School of Mechanical Engineering, Vellore Institute of Technology (VIT)

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0 Optimization
0 Tribology
0 Welding
0 Composite materials

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Earlycite article
Published: 16 August 2021 in International Journal of Quality & Reliability Management
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Purpose This research work focuses on implementing this methodology in reducing the rejection rate of the turbocharger component problem that occurs during the manufacturing process. Using design, measure, analyze, improve and control (DMAIC) processes, it has been identified that clamping pressure on the component is one factor that affects quality. The impact of clamping pressure is studied to arrive at the ideal clamping pressure in which the rejection rate is the least. Design/methodology/approach Quality is the keyword in manufacturing where the production of a defect-free component is the most sought out objective. The definition of quality keeps getting refined throughout the years, from making products with no defects to minimizing rejection and scrap in the manufacturing process. Production facilities, to achieve this purpose, have adopted various methods and use of the DMAIC of Six Sigma methodology is one among them. Findings The study identified the fault causing the defect and suggested the methods to correct the fault. The suggestions would result in reducing the losses arising due to this and similar rejection causes. Originality/value With the adoption of DMAIC, it is found that misalignment of top and side clamp pressure is zero. When the side clamp pressure is at 75 PSI, and top clamp pressure is changed from 90 PSI to 95 PSI, the mean of responses is greater than the side clamp pressure of 80 PSI. Therefore, from the three-combination top clamp pressure of 100 PSI and the side clamp pressure of 75 PSI is the optimal condition.

ACS Style

G. Sundaramali; C. Vishal Reddy; Revanth Vinay Kumar Kodali; Sherin Thomas Sipri; K. Santhosh Raj; S. Anirudh; Senthil Kumaran Selvaraj. Reduction of hole misalignment in turbocharger center housing. International Journal of Quality & Reliability Management 2021, ahead-of-p, 1 .

AMA Style

G. Sundaramali, C. Vishal Reddy, Revanth Vinay Kumar Kodali, Sherin Thomas Sipri, K. Santhosh Raj, S. Anirudh, Senthil Kumaran Selvaraj. Reduction of hole misalignment in turbocharger center housing. International Journal of Quality & Reliability Management. 2021; ahead-of-p (ahead-of-p):1.

Chicago/Turabian Style

G. Sundaramali; C. Vishal Reddy; Revanth Vinay Kumar Kodali; Sherin Thomas Sipri; K. Santhosh Raj; S. Anirudh; Senthil Kumaran Selvaraj. 2021. "Reduction of hole misalignment in turbocharger center housing." International Journal of Quality & Reliability Management ahead-of-p, no. ahead-of-p: 1.

Conference paper
Published: 02 April 2021 in Materials Today: Proceedings
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Nowadays, infrastructure construction is becoming a serious problem globally due to high material consumption. So, there are high demands in the construction industry using the river sand as fine aggregate in concrete production. Pond ash is an industrial waste product from the thermal power plant; such material can be used as a partial replacement of fine aggregate in C-25 grade of concrete. In this research work, each mix's workability was measured before the concrete cast, and the slum was 25 to 50 mm. Concrete cubes of size (150 mm × 150 mm × 150 mm) were prepared with seven different samples containing 0% (control) to 30% pond ash with increment of 5%. From the result obtained, the workability and density of concrete containing pond ash decreased with increase percentage content of pond ash in the mix. The compressive strength of pond ash concrete containing 5% and 10% have shown increment compared to the control concrete by about 0.13%,3.74%,2.46% and 0.04%, 1.14%,0.70% at 7, 14 and 28 days of curing respectively. Finally, in this study, the percentage replacement of fine aggregate concrete up to 10% by pond ash better resulted in compressive strength of concrete is found 34.75 N/mm2 at 28 days. Therefore, the optimum replaced fine aggregate by pond ash is 10%.

ACS Style

Yeshi Abebe Yimam; Getachew Kebede Warati; Temesgen Fantu; Velmurugan Paramasivam; Senthil Kumaran Selvaraj. Effect of pond ash on properties of C-25 concrete. Materials Today: Proceedings 2021, 46, 8296 -8302.

AMA Style

Yeshi Abebe Yimam, Getachew Kebede Warati, Temesgen Fantu, Velmurugan Paramasivam, Senthil Kumaran Selvaraj. Effect of pond ash on properties of C-25 concrete. Materials Today: Proceedings. 2021; 46 ():8296-8302.

Chicago/Turabian Style

Yeshi Abebe Yimam; Getachew Kebede Warati; Temesgen Fantu; Velmurugan Paramasivam; Senthil Kumaran Selvaraj. 2021. "Effect of pond ash on properties of C-25 concrete." Materials Today: Proceedings 46, no. : 8296-8302.

Conference paper
Published: 15 March 2021 in Materials Today: Proceedings
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Waste heat from industries, when are not captured, is useless and contributes to environmental pollution. There are many methods to recover the waste heat generated from local industries, but this present work was done on shell and tube type heat exchanger for waste heat recovery. Recapturing and reusing this waste heat by using waste heat recovery would simultaneously reduce energy prices and greenhouse gas emissions. This present work aims to design and techno-economic analysis of power generating unit from waste heat (preheater and grate cooler) of cement factory line 2 to avoid the problems that are caused due to the burning of fossil fuels and to ensure the environmental sustainability. This present work is design and techno-economic analysis of power generating unit consist of mixing chamber, electrostatic precipitator, shell and tube type heat exchanger, superheater, piping systems, steam turbine, surface condenser and feedwater pump as its main components. Several methods were used, including secondary data collection, system design, and system cost analysis. The factory's collected data was the temperature of waste heat from the grate cooler stack of 285℃ with the amount of 1.938 kg/kg of clinker and which leave the six cyclone preheater tower stack of 323℃ with the amount of 2.69 kg/kg of clinker. Three scenarios are intended to make use of waste heat. According to calculation results, the power was produced from each scenario, and due to those power techno-economic analyses of the power generating unit was performed. Because of its high steam upgrade, high production of power, high-cost savings, low payback period, low condenser load and high pumping power, scenario one was selected than scenario two and three.

ACS Style

Aweke Gugssa Iddo; Velmurugan Paramasivam; Senthil Kumaran Selvaraj. Design and Techno-economic analysis of power generating unit from waste heat (Preheater and grate cooler) of cement factory in Ethiopia. Materials Today: Proceedings 2021, 46, 7825 -7838.

AMA Style

Aweke Gugssa Iddo, Velmurugan Paramasivam, Senthil Kumaran Selvaraj. Design and Techno-economic analysis of power generating unit from waste heat (Preheater and grate cooler) of cement factory in Ethiopia. Materials Today: Proceedings. 2021; 46 ():7825-7838.

Chicago/Turabian Style

Aweke Gugssa Iddo; Velmurugan Paramasivam; Senthil Kumaran Selvaraj. 2021. "Design and Techno-economic analysis of power generating unit from waste heat (Preheater and grate cooler) of cement factory in Ethiopia." Materials Today: Proceedings 46, no. : 7825-7838.

Conference paper
Published: 05 March 2021 in Materials Today: Proceedings
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Hydraulic Scissor lift is an economical solution for light to medium weight material loading systems which utilizes a mechanism linked to a loading platform. This paper presents computations for evaluation of actuator forces under the rated loading of the scissor lift. In this present work, the mobile scissor lift has been designed to be powered by hydraulic to a height of 8 m carrying a maximum load of 1000 kg. The design process parameters have been simultaneously identified to enrich the process of nature. The hydraulic scissor lift component design includes arm, upper platform, lower plate, hydraulic tank, motor, and wheel. The final 3D model was carried out by using Solid work Software.

ACS Style

Velmurugan Paramasivam; Samuel Tilahun; Alelign Kerebih Jembere; Senthil Kumaran Selvaraj. Analytical investigation of hydraulic scissor lift for modular industrial plants in ethiopia. Materials Today: Proceedings 2021, 46, 7596 -7601.

AMA Style

Velmurugan Paramasivam, Samuel Tilahun, Alelign Kerebih Jembere, Senthil Kumaran Selvaraj. Analytical investigation of hydraulic scissor lift for modular industrial plants in ethiopia. Materials Today: Proceedings. 2021; 46 ():7596-7601.

Chicago/Turabian Style

Velmurugan Paramasivam; Samuel Tilahun; Alelign Kerebih Jembere; Senthil Kumaran Selvaraj. 2021. "Analytical investigation of hydraulic scissor lift for modular industrial plants in ethiopia." Materials Today: Proceedings 46, no. : 7596-7601.

Conference paper
Published: 01 March 2021 in Materials Today: Proceedings
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Geothermal energy, one of the renewable energies on the earth, have extensively been used worldwide. Its applications fall into two classifications; first, utilizing heat energy in the source directly and second, indirectly converting it into another energy form (electricity). The objective of this analysis to vapor absorption refrigeration system (VARS), the systems powered by geothermal energy for thermal cooling of waste. In the second part, mass & energy conservation principles have been used to analyze VARS components to cool drinking water of Dilla University from 37.8 °C to 16 °C within 16 hrs. In the second part, designed VARS operating at an evaporation rate of 103.12 kW can cool 66,000 L of drinking water to the required temperature within 16 hrs each day. It has to be noted that the evaporation rate varies with the time needed to cool. If the water to be cooled is within a short time, a high evaporation rate is then required. Based on the results obtained, it is clear that geothermal energy at Gedeo and Gujji Zones can be utilized for VAR systems.

ACS Style

Yonas Tetemke; Velmurugan Paramasivam; Fikru Tadele; Senthil Kumaran Selvaraj. Analyzed of vapor absorption refrigeration systems powered by geothermal energy: Site in Ethiopia. Materials Today: Proceedings 2021, 46, 7570 -7580.

AMA Style

Yonas Tetemke, Velmurugan Paramasivam, Fikru Tadele, Senthil Kumaran Selvaraj. Analyzed of vapor absorption refrigeration systems powered by geothermal energy: Site in Ethiopia. Materials Today: Proceedings. 2021; 46 ():7570-7580.

Chicago/Turabian Style

Yonas Tetemke; Velmurugan Paramasivam; Fikru Tadele; Senthil Kumaran Selvaraj. 2021. "Analyzed of vapor absorption refrigeration systems powered by geothermal energy: Site in Ethiopia." Materials Today: Proceedings 46, no. : 7570-7580.

Conference paper
Published: 26 February 2021 in Materials Today: Proceedings
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This paper presents the volumetric fraction index's effect on temperature distribution throughout the radial direction of functionally graded material (FGM) thick-walled cylinder. It has been considered that the cylinder's inner and outer radius consists of a ceramic (Mullite) and metal (Molybdenum), respectively. The material properties are examined by employing the rule-of-mixture, and it varies continuously and gradually through the radius of the cylinder and is assumed to be temperature independent. The temperature distribution of a homogeneous-made cylinder is compared with an FGM cylinder's numerical solutions for volumetric fraction index equivalent to zero and infinity to validate the present work. The temperature distribution throughout the FGM thick-walled cylinder's thickness direction is evaluated by writing the code in python, an open-source programming environment, and presented in graphical form. The results show that the volumetric fraction significantly influences the material properties, such as the thermal conductivity coefficient and thermal expansion coefficient through the radial direction. Besides, the volumetric fraction has a significant impact on temperature distribution in the FGM cylinder. The temperature distribution in the FGM cylinder has less than the homogenous made cylinder.

ACS Style

Yihunie Mognhod Bezzie; Dereje Engida Woldemichael; Ewnetu Tefera Chekol; Solomon Alemneh Admass; Senthil Kumaran Selvaraj; Velmurugan Paramasivam. Effect of volumetric fraction index on temperature distribution in thick-walled functionally graded material made cylinder. Materials Today: Proceedings 2021, 46, 7442 -7447.

AMA Style

Yihunie Mognhod Bezzie, Dereje Engida Woldemichael, Ewnetu Tefera Chekol, Solomon Alemneh Admass, Senthil Kumaran Selvaraj, Velmurugan Paramasivam. Effect of volumetric fraction index on temperature distribution in thick-walled functionally graded material made cylinder. Materials Today: Proceedings. 2021; 46 ():7442-7447.

Chicago/Turabian Style

Yihunie Mognhod Bezzie; Dereje Engida Woldemichael; Ewnetu Tefera Chekol; Solomon Alemneh Admass; Senthil Kumaran Selvaraj; Velmurugan Paramasivam. 2021. "Effect of volumetric fraction index on temperature distribution in thick-walled functionally graded material made cylinder." Materials Today: Proceedings 46, no. : 7442-7447.

Conference paper
Published: 23 February 2021 in Materials Today: Proceedings
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A brake is a device using which frictional resistance is applied for stopping a moving vehicle. In disc brakes, the component on which the pads are squeezed when the brake pedal is applied. Disc brakes are subjected to both mechanical and thermal stresses. The cyclic thermal stress is more significant than mechanical stress. In this study, three-disc brakes with different profiles are selected to investigate the thermo-mechanical behavior analytically and numerically. This analysis develops a three-dimensional (3D) thermo-structural coupling model, implements transient thermal Analysis and transient structural Analysis of disc brake profiles with a frictional heat. The thermo-structural problem is solved by the finite element method to get the transient temperature and thermal stress fields of the disc brake under emergency braking. Comparison between the three profiles has been made using different parameters, including the maximum temperature on the surface, equivalent thermal stress (Von-Mises), and thermal deformation. The result has shown that the having grooved profile on its surface exhibited 34Mpa of equivalent stress, whereas the solid type and the drilled type have shown 80Mpa and 57Mpa. It also shows that the grooved type brake is efficient by far more magnitude than the other two profiles. In general, the thermal stress developed and thermal deformation on the would significantly decrease when it has a profile that allows for better heat dissipation to the surrounding.

ACS Style

Habtamu Dubale; Velmurugan Paramasivam; Eneyw Gardie; Ewnetu Tefera Chekol; Senthil Kumaran Selvaraj. Numerical investigation of thermo-mechanical properties for disc brake using light commercial vehicle. Materials Today: Proceedings 2021, 46, 7548 -7555.

AMA Style

Habtamu Dubale, Velmurugan Paramasivam, Eneyw Gardie, Ewnetu Tefera Chekol, Senthil Kumaran Selvaraj. Numerical investigation of thermo-mechanical properties for disc brake using light commercial vehicle. Materials Today: Proceedings. 2021; 46 ():7548-7555.

Chicago/Turabian Style

Habtamu Dubale; Velmurugan Paramasivam; Eneyw Gardie; Ewnetu Tefera Chekol; Senthil Kumaran Selvaraj. 2021. "Numerical investigation of thermo-mechanical properties for disc brake using light commercial vehicle." Materials Today: Proceedings 46, no. : 7548-7555.

Conference paper
Published: 21 February 2021 in Materials Today: Proceedings
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The present work aimed to show (explore) Adama city’s economic and environmental opportunities for solid waste incineration with energy recovery, also known as Waste to Energy. The current waste management system in Adama consists of landfills in the cities and open burning. Environmentally, this is an imperfect solution, and although there are plans for change, no specific strategy has been presented. This is a growing problem, both environmentally and logistically. Another important thing is that Waste to Energy is the additional way of getting energy for Adama city. Data was collected from Adama with four kebele and different literature review. From the collected data, waste-to-energy systems were simulated in CYCLEPAD, PYTHON, and MECH IN EXCEL. The simulations show that a system using waste incineration would be the best solution for Adama city. This study shows that implementing a waste incineration plant in the Adama city energy system is economically and environmentally feasible compared to the current conditions. The chosen system is designed to handle 50,000 tons of waste annually collected from Adama city. The system will provide 118.5 GW hours of electric energy annually. The system investment cost is around 149.5 MUSD, and it is expected to generate an annual profit of 4.71 MUSD. This study clearly shows that there is both economic and environmental potential for waste-to-energy technologies in the region. By implementing waste-to-energy technology, the supplied waste can be seen as a resource instead of a problem. This would give incentives for further actions and investments regarding waste management. Compared with the city’s current solution with landfills and fossil fuel turbines, the present work also develops a significant environmental improvement. During the plant’s design lifetime, greenhouse gas emissions are small, assuming that only a portion of the waste's carbon content is of fossil origin.

ACS Style

Redwan Ali Usman; Velmurugan Paramasivam; Senthil Kumaran Selvaraj. Some study on the potential energy extraction from solar-assisted solid waste for produce electricity in Adama city in Ethiopia. Materials Today: Proceedings 2021, 46, 7537 -7547.

AMA Style

Redwan Ali Usman, Velmurugan Paramasivam, Senthil Kumaran Selvaraj. Some study on the potential energy extraction from solar-assisted solid waste for produce electricity in Adama city in Ethiopia. Materials Today: Proceedings. 2021; 46 ():7537-7547.

Chicago/Turabian Style

Redwan Ali Usman; Velmurugan Paramasivam; Senthil Kumaran Selvaraj. 2021. "Some study on the potential energy extraction from solar-assisted solid waste for produce electricity in Adama city in Ethiopia." Materials Today: Proceedings 46, no. : 7537-7547.

Conference paper
Published: 21 February 2021 in Materials Today: Proceedings
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High-strength concrete is used for resisting high compressive load and improved strength. The Cement content of the mix proportion for high-strength concrete is incredibly high compared with conventional concrete strength. Fly ash is the by-product of coal burning. Such material was used as a partial replacement of cement in high strength concrete, reducing carbon-dioxide gas emissions into the atmosphere and minimizing the negative impact on the environment released from industrial waste disposal as landfill. The objective of this study is to investigate the effect of fly ash on high-strength concrete properties. Experimental laboratory tests were conducted. Slump height is measured to determine the workability of fresh concrete. The Cube size is (150mmx150mmx150mm) which is used for testing compressive strength for the age of 7, 14, and 28 days of curing. Cement's percentage replacement with fly ash varies from 0% to 30% by the increment of 5%. The total numbers of samples conducted are one hundred twenty-six. The study results show that the replacement of cement by fly ash up to10% increases the slump values. However, the replacement of cement beyond 10% by fly ash decreases the workability of fresh concrete. Regarding density and compressive strength, the replacement of cement by fly ash decreased the density of concrete. The compressive strength of concrete becomes improved and increased when the cement is replaced by fly ash up to 10%. At the curing age of 28th days, the concrete containing 5% and 10% fly ash as cement gained 1.66% and 2.97% of strength, respectively. This study suggests that the partial replacement of cement by fly ash up to 10% increases the capacity of high strength concrete and fresh concrete's workability. The optimum percentage of fly ash to replace cement is 10% for high strength concrete.

ACS Style

Temesgen Fantu; Getasew Alemayehu; Getachew Kebede; Yeshi Abebe; Senthil Kumaran Selvaraj; Velmurugan Paramasivam. Experimental investigation of compressive strength for fly ash on high strength concrete C-55 grade. Materials Today: Proceedings 2021, 46, 7507 -7517.

AMA Style

Temesgen Fantu, Getasew Alemayehu, Getachew Kebede, Yeshi Abebe, Senthil Kumaran Selvaraj, Velmurugan Paramasivam. Experimental investigation of compressive strength for fly ash on high strength concrete C-55 grade. Materials Today: Proceedings. 2021; 46 ():7507-7517.

Chicago/Turabian Style

Temesgen Fantu; Getasew Alemayehu; Getachew Kebede; Yeshi Abebe; Senthil Kumaran Selvaraj; Velmurugan Paramasivam. 2021. "Experimental investigation of compressive strength for fly ash on high strength concrete C-55 grade." Materials Today: Proceedings 46, no. : 7507-7517.

Conference paper
Published: 19 February 2021 in Materials Today: Proceedings
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Natural fibers are getting attention from researchers and academicians to utilize in polymer composites due to their eco-friendly nature and sustainability. The investigation of hybrid composite has been amalgamated and high structural performance. This paper has presented the fabrication and analysis of textile waste/glass fiber hybrid composite material's mechanical properties. The samples were fabricated by the hand lay-up method and pressing strategy. Five samples were prepared which are pure resin, textile waste fiber only layer (T/T/T), textile waste/glass fiber/textile waste layer (T/G/T), glass fiber/textile waste/glass fiber layer (G/T/G) and glass fiber only layer (G/G/G) composite. The mold was prepared locally in the workshop. The specimen was cut from the manufactured test agreeing to the ASTM standard for mechanical properties tests such as tensile test, flexural test, and impact test. The experimental results justify that textile waste fiber's effect is improved mechanical properties from pure resin composite. For instance, tensile strength was improved by 31.1% and modulus of elasticity was increased by 38.3%. The Flexural strength of sample G/T/G is 95% greater than T/T/T sample. T/G/T's tensile strength is recorded 64 MPa and G/T/G has recorded 52.33 MPa. The flexural strength and flexural modulus of the G/T/G composite are given 173.1 MPa and 32.63GPa, respectively. During the impact test, the textile wastes fabric to decrease the composite's impact strength is decreased. The highest water absorbed is shown G/T/G hybrid composite. The composites are immersed for 168 h in cube until at equilibrium state.

ACS Style

Belay Taye Wondmagegnehu; Velmurugan Paramasivam; Senthil Kumaran Selvaraj. Fabricated and analyzed the mechanical properties of textile waste/glass fiber hybrid composite material. Materials Today: Proceedings 2021, 46, 7297 -7303.

AMA Style

Belay Taye Wondmagegnehu, Velmurugan Paramasivam, Senthil Kumaran Selvaraj. Fabricated and analyzed the mechanical properties of textile waste/glass fiber hybrid composite material. Materials Today: Proceedings. 2021; 46 ():7297-7303.

Chicago/Turabian Style

Belay Taye Wondmagegnehu; Velmurugan Paramasivam; Senthil Kumaran Selvaraj. 2021. "Fabricated and analyzed the mechanical properties of textile waste/glass fiber hybrid composite material." Materials Today: Proceedings 46, no. : 7297-7303.

Conference paper
Published: 18 February 2021 in Materials Today: Proceedings
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This is a review article on brake pads produced using natural fiber. The various International attempts to address environmental issues and the necessity to safeguard the environment have given light to research emphasizing natural fibers usage in various applications, including automotive brake pads. The usage of asbestos in the brake pads is to be avoided because of the high risk in health it possesses, such as being carcinogenic and unsafe to the environment. Thus researchers are interested in natural fiber due to its excellent properties, very cheap, readily available, non-toxic, etc. In this investigation, the mechanical and tribological property of a non-asbestos brake pad is compared with the asbestos brake pad. These cases illustrate non-asbestos brake pads' ability to achieve substantial improvements in wear rate, Coefficient of friction, Hardness, and moisture absorption compared to conventional brake pads overbroad, and Several factors contribute to these improvements.

ACS Style

S. Yashwhanth; M. Mithun Mohan; R. Anandhan; Senthil Kumaran Selvaraj. Present knowledge and perspective on the role of natural fibers in the brake pad material. Materials Today: Proceedings 2021, 46, 7329 -7337.

AMA Style

S. Yashwhanth, M. Mithun Mohan, R. Anandhan, Senthil Kumaran Selvaraj. Present knowledge and perspective on the role of natural fibers in the brake pad material. Materials Today: Proceedings. 2021; 46 ():7329-7337.

Chicago/Turabian Style

S. Yashwhanth; M. Mithun Mohan; R. Anandhan; Senthil Kumaran Selvaraj. 2021. "Present knowledge and perspective on the role of natural fibers in the brake pad material." Materials Today: Proceedings 46, no. : 7329-7337.

Conference paper
Published: 16 February 2021 in Materials Today: Proceedings
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This paper talks about how machine learning techniques can be applied in the welding industry. Machine learning techniques could be used to find solutions to the problems faced by different welding processes and make them even more efficient. The welding processes' efficiency and accuracy have been proved to increase significantly by using machine learning algorithms. Industrial robots trained using artificial intelligence can find solutions to many complex manufacturing industry problems. Many welding processes rely on human expertise while choosing optimum parameters that are quite susceptible to human error and less efficient. To reduce this dependence, robots and automatic systems are trained using neural networks capable of delivering consistent weld quality and improved efficiency. Machine learning is also employed to visualize welding since the visual inspection is critical to determine weld quality. These techniques can also be used to evaluate the causes of various health hazards using regression analysis.

ACS Style

Rishikesh Mahadevan R; Avinaash Jagan; Lakshmi Pavithran; Ashutosh Shrivastava; Senthil Kumaran Selvaraj. Intelligent welding by using machine learning techniques. Materials Today: Proceedings 2021, 46, 7402 -7410.

AMA Style

Rishikesh Mahadevan R, Avinaash Jagan, Lakshmi Pavithran, Ashutosh Shrivastava, Senthil Kumaran Selvaraj. Intelligent welding by using machine learning techniques. Materials Today: Proceedings. 2021; 46 ():7402-7410.

Chicago/Turabian Style

Rishikesh Mahadevan R; Avinaash Jagan; Lakshmi Pavithran; Ashutosh Shrivastava; Senthil Kumaran Selvaraj. 2021. "Intelligent welding by using machine learning techniques." Materials Today: Proceedings 46, no. : 7402-7410.

Conference paper
Published: 16 February 2021 in Materials Today: Proceedings
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Study of various microstructural properties and mechanical properties of the weld zones of different alloys, which were welded using the EBW and LBW. This study reveals all the changes occurring to the microstructural and mechanical properties due to variation in the input values such as at which speed the welding is done, the angle at which the component is welded. EBW is the most sophisticated process for welding both similar and dissimilar metals and alloys. As the process is a high energy density process, the heat produced or the heat input is comparatively lower than the convention welding process, thereby producing smaller width of the fusion zone (FZ) and heat-affected zone (HAZ). Due to the HAZ, the microstructure and microhardness of the Base Metal (BM) are getting affected. And the optical microscopy studies also revealed how the microstructure changes affect the microhardness and the tensile strength. Some of the test results were also incorporated to add strength to the details provided.

ACS Style

Balakrishna Tarun Voonna; Sai Sriram Angara; Jnani Srinivas Vavilapalli; Yaswanth Varma Datla; Senthil Kumaran Selvaraj. Some studies of nanoparticle properties for dissimilar materials on the surface features created by EBW and LBW. Materials Today: Proceedings 2021, 46, 7271 -7283.

AMA Style

Balakrishna Tarun Voonna, Sai Sriram Angara, Jnani Srinivas Vavilapalli, Yaswanth Varma Datla, Senthil Kumaran Selvaraj. Some studies of nanoparticle properties for dissimilar materials on the surface features created by EBW and LBW. Materials Today: Proceedings. 2021; 46 ():7271-7283.

Chicago/Turabian Style

Balakrishna Tarun Voonna; Sai Sriram Angara; Jnani Srinivas Vavilapalli; Yaswanth Varma Datla; Senthil Kumaran Selvaraj. 2021. "Some studies of nanoparticle properties for dissimilar materials on the surface features created by EBW and LBW." Materials Today: Proceedings 46, no. : 7271-7283.

Conference paper
Published: 16 February 2021 in Materials Today: Proceedings
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This research aims to optimize on an optimal condition to increase the capacity of passenger truck chassis and focus analysis of stress for the different cross-section in different loading conditions with the consideration of stress concentration factor. Chassis is a significant component in the vehicle, and different types of failures occur due to static loading conditions. Unbalanced loading conditions in the construction of lorry and passenger trucks; the actual unloading carrying capacity for passenger bus is less than the lorry one in the local area. Maximum stress and maximum deflection are the main criteria for designing the passenger truck chassis. The present study determined the maximum stress and maximum deflection to recognize critical regions under loading. Stress was analyzed using different cross-sections under different loading conditions. As a result, I cross-section is important to increase the chassis capacity, and the effects of stress concentration factor are necessary to choose the essential profile. And that used to fix chassis characteristics of the static condition. Finite element analysis enables to predict the region that tends to fail due to loading implemented. This study definitively answers the question regarding chassis stress analysis in different cross-sections and loading conditions. I cross-section is the best, which has less stress and deflection.

ACS Style

Alelign Kerebih Jembere; Velmurugan Paramasivam; Samuel Tilahun; Senthil Kumaran Selvaraj. Stress analysis of different cross-section for passenger truck chassis with a material of ASTM A148 Gr 80–50. Materials Today: Proceedings 2021, 46, 7304 -7316.

AMA Style

Alelign Kerebih Jembere, Velmurugan Paramasivam, Samuel Tilahun, Senthil Kumaran Selvaraj. Stress analysis of different cross-section for passenger truck chassis with a material of ASTM A148 Gr 80–50. Materials Today: Proceedings. 2021; 46 ():7304-7316.

Chicago/Turabian Style

Alelign Kerebih Jembere; Velmurugan Paramasivam; Samuel Tilahun; Senthil Kumaran Selvaraj. 2021. "Stress analysis of different cross-section for passenger truck chassis with a material of ASTM A148 Gr 80–50." Materials Today: Proceedings 46, no. : 7304-7316.

Review
Published: 16 February 2021 in Materials Today: Proceedings
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Advanced composite materials have excellent mechanical and physical properties, which are wide, used in aerospace, automobile, biomedical, recreational (sport), and structural industries. Because composite materials have high stiffness and strength, fatigue failure and corrosion resistance, and low density compared with meals and metals alloy. But, composite materials' properties became poor performance due to manufacturing defects, fiber-matrix stacking sequences, fiber orientations, and other factors. These factors lead to multidirectional (MD) composite laminates failure. This paper presents a review of recent work on failure analysis of multidirectional composite laminate from the last two decades of published researches. This review paper reported MD composite laminates' failure mechanism at various failure criteria, such as maximum strain/stress failure criteria, quadratic failure theory (Tsai-Wu theory), Tsai-Hill criteria, Hashin criteria, Puck failure criteria, and others criteria. Finally, this paper presents a meaningful conclusion.

ACS Style

Yihunie Mognhod Bezzie; Velmurugan Paramasivam; Samuel Tilahun; Senthil Kumaran Selvaraj. A review on failure mechanisms and analysis of multidirectional laminates. Materials Today: Proceedings 2021, 46, 7380 -7388.

AMA Style

Yihunie Mognhod Bezzie, Velmurugan Paramasivam, Samuel Tilahun, Senthil Kumaran Selvaraj. A review on failure mechanisms and analysis of multidirectional laminates. Materials Today: Proceedings. 2021; 46 ():7380-7388.

Chicago/Turabian Style

Yihunie Mognhod Bezzie; Velmurugan Paramasivam; Samuel Tilahun; Senthil Kumaran Selvaraj. 2021. "A review on failure mechanisms and analysis of multidirectional laminates." Materials Today: Proceedings 46, no. : 7380-7388.

Conference paper
Published: 16 February 2021 in Materials Today: Proceedings
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Effluents from wet processing of coffee industries pollute water bodies since the wastewater is released to the water bodies' vicinity. The wastes water from these industries affects the surface and groundwater. The study was initiated to treat wastewater effluent coming from the coffee industry in the specific area by using an anaerobic mixed culture of Pseudomonas fluorescence and Escherichia coli bacteria. The treatment reduced BOD5, COD, and TS from its initial concentration of 320.26 mg/l, 1261 mg/l, and 3545 mg/l to 58.37 mg/l, 152 mg/l, and 1198 mg/l, respectively. The study's treatment had reduced the BOD5 load up to 81.67%, the COD load up to 87.94%, and TS load up to 33.79% from the initial load using optimization of the treatment method. Therefore, it can be concluded that mixed culture bacteria of P. fluorescence and E. coli as a new effective treatment having the potential for BOD5, COD, and TS reduction from the effluent. The mixed culture of microorganisms can reduce the contaminants that made the approach cost-effective, time-saving compared with other results found by other studies without mixed culture. The microorganisms included in the study can be applied for the treatment of effluent containing multiple contaminants.

ACS Style

Fitsum Ashenafi Hailemariam; Paramasivam Velmurugan; Senthil Kumaran Selvaraj. Treatment of wastewater from coffee (coffea arebica) industries using mixed culture Pseudomonas florescence and Escherichia coli bacteria. Materials Today: Proceedings 2021, 46, 7396 -7401.

AMA Style

Fitsum Ashenafi Hailemariam, Paramasivam Velmurugan, Senthil Kumaran Selvaraj. Treatment of wastewater from coffee (coffea arebica) industries using mixed culture Pseudomonas florescence and Escherichia coli bacteria. Materials Today: Proceedings. 2021; 46 ():7396-7401.

Chicago/Turabian Style

Fitsum Ashenafi Hailemariam; Paramasivam Velmurugan; Senthil Kumaran Selvaraj. 2021. "Treatment of wastewater from coffee (coffea arebica) industries using mixed culture Pseudomonas florescence and Escherichia coli bacteria." Materials Today: Proceedings 46, no. : 7396-7401.

Conference paper
Published: 16 February 2021 in Materials Today: Proceedings
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Composites materials in the defense, marine, aviation, and automotive industries are growing due to their excellent mechanical properties and lower density compared with metallic materials. In the automotive industry, the reduction of weight and reduction of fuel consumption is essential to increase the vehicle's performance. Most automotive industries manufacture automotive wheels from metallic materials. The present work is a carbon-reinforced composite material, and structural steel for lightweight automotive wheel application was compared and analyzed. The selected vehicle's actual model was modeled in SOLIDWORK 17 and the analysis in ANSYS 18.1, and the result was obtained. In the numerical analysis, using a laminated carbon/epoxy (fiber reinforced) composite material wheel rather than the structural steel wheel reduces the equivalent (Von-Mises) stress by 31.5%. Total deformation by 15.5%, compared with the structural steel wheel, using reinforced carbon epoxy automotive wheel has 80.4% weight reduction. This unsprung weight of the vehicle decreases, and performance increases.

ACS Style

Eneyw Gardie; Velmurugan Paramasivam; Habtamu Dubale; Ewnetu Tefera Chekol; Senthil Kumaran Selvaraj. Numerical analysis of reinforced carbon fiber composite material for lightweight automotive wheel application. Materials Today: Proceedings 2021, 46, 7369 -7374.

AMA Style

Eneyw Gardie, Velmurugan Paramasivam, Habtamu Dubale, Ewnetu Tefera Chekol, Senthil Kumaran Selvaraj. Numerical analysis of reinforced carbon fiber composite material for lightweight automotive wheel application. Materials Today: Proceedings. 2021; 46 ():7369-7374.

Chicago/Turabian Style

Eneyw Gardie; Velmurugan Paramasivam; Habtamu Dubale; Ewnetu Tefera Chekol; Senthil Kumaran Selvaraj. 2021. "Numerical analysis of reinforced carbon fiber composite material for lightweight automotive wheel application." Materials Today: Proceedings 46, no. : 7369-7374.

Conference paper
Published: 16 February 2021 in Materials Today: Proceedings
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This research's main objective is to develop new composite material and evaluate the physical and mechanical properties of particleboards made of Bamboo and Sesame stalk bonded with urea–formaldehyde resin. The composite material was prepared by crushing bamboo and sesame stalk and blended with 14.5% of urea–formaldehyde, 3% of hardener, 1.5% of paraffin wax 2.5% of boric acid through hand mixing. Nine samples of particleboards were produced with their proportions through the experiment's Taguchi design (L9) approach. Minitab 16 software package is used for experimental result analysis. Physical and mechanical properties, including internal bonding strength, modulus of rupture, modulus of elasticity, moisture content, water absorption, and thickness swelling tests, were conducted. Internal bonding (IB), Water Absorption, Modulus of Elasticity (MOE), and Thickness Swelling are above the minimum requirement. However, Moisture contents, Modulus of rupture are significantly decreased from the standard. The optimum factors combination for the betterment of performance were bamboo to sesame ratio (2:1), pressure (25 N/mm2), and second level particle size (D2 = 0.5 to 1.5 mm for the surface layer and 1.5 to 2.5 mm for core layer).

ACS Style

Addisalem Adefris Legesse; Shishay Amare Gebremeskel; Velmurugan Paramasivam; Senthil Kumaran Selvaraj. Development and characterization of bamboo - sesame stalk hybrid urea-formaldehyde matrix composite for particleboard application. Materials Today: Proceedings 2021, 46, 7351 -7358.

AMA Style

Addisalem Adefris Legesse, Shishay Amare Gebremeskel, Velmurugan Paramasivam, Senthil Kumaran Selvaraj. Development and characterization of bamboo - sesame stalk hybrid urea-formaldehyde matrix composite for particleboard application. Materials Today: Proceedings. 2021; 46 ():7351-7358.

Chicago/Turabian Style

Addisalem Adefris Legesse; Shishay Amare Gebremeskel; Velmurugan Paramasivam; Senthil Kumaran Selvaraj. 2021. "Development and characterization of bamboo - sesame stalk hybrid urea-formaldehyde matrix composite for particleboard application." Materials Today: Proceedings 46, no. : 7351-7358.

Conference paper
Published: 15 February 2021 in Materials Today: Proceedings
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The area of the welding industry is experiencing unpredictable improvements. In this case study, six sigma using the DMAIC technique is implemented to optimize the friction welding of tube to tube plate using the external tool method. The values are obtained from a research study in the past. The process parameters are prioritized with percentile contribution predicting statistical significance using Analysis of Variance (ANOVA) in the analysis phase. Then optimizing the FWTPET process variables by Response Surface Methodology (RSM) in the improve phase. The predicted values' practical feasibility is checked to be under control using IMR control charts in the control phase. The range of optimum values predicted is under control.

ACS Style

NirmalaDevi Padmarajan; Senthil Kumaran Selvaraj. Sig sigma implementation (DMAIC) of friction welding of tube to tube plate by external tool optimization. Materials Today: Proceedings 2021, 46, 7344 -7350.

AMA Style

NirmalaDevi Padmarajan, Senthil Kumaran Selvaraj. Sig sigma implementation (DMAIC) of friction welding of tube to tube plate by external tool optimization. Materials Today: Proceedings. 2021; 46 ():7344-7350.

Chicago/Turabian Style

NirmalaDevi Padmarajan; Senthil Kumaran Selvaraj. 2021. "Sig sigma implementation (DMAIC) of friction welding of tube to tube plate by external tool optimization." Materials Today: Proceedings 46, no. : 7344-7350.

Conference paper
Published: 15 February 2021 in Materials Today: Proceedings
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A solar dryer assisted by biomass back-up heater was designed and manufactured from locally available materials to dry maize, and the drying model is selected, which better fits the dryer test results. This study tried to address the problem associated with the fact that solar dryers are efficiently operational only when there is sufficient solar energy. The dyer comprises a solar air heater, drying chamber, biomass back-up heater, and airflow systems. The solar heater has a length and width of 2 m × 1 m respectively and is enclosed with a transparent glass that allows the solar energy into the collector. The measurement taken to evaluate this dryer's performance is temperature, moisture content, solar irradiation, and airspeed. The average temperature difference between the ambient and the collector outlet was recorded as 9.6 °C, and 12.8 °C in the solar and biomass assisted dryer. The daily average solar insolation for the test periods of October and December at the site was 673 W/m2. When the system is loaded with 50 kg of wet maize grain at an initial moisture content of 21.3% and dried to 14.4% moisture content in 45 h drying time in the solar dryer, 4.03 kg of moisture is removed. A 50 kg of wet maize grain at an initial moisture content of 22.9% and dried to 14.2% moisture content in 27 h in solar dryer assisted by biomass back-up heater, 5.06 kg of moisture is removed. Solar dryer collector efficiency was estimated as 64.2% with an average drying rate of 0.0746 kg/hr. The solar dryer system efficiency was 20.8%, and solar assisted dryer efficiency was 4.3%.

ACS Style

Ewnetu Tefera Chekol; Velmurugan Paramasivam; Eneyw Gardie; Habtamu Dubale; Senthil Kumaran Selvaraj. Experimental investigation of suitable thin layer drying curve to solar maize dryer assisted for biomass back-up heater. Materials Today: Proceedings 2021, 46, 7389 -7395.

AMA Style

Ewnetu Tefera Chekol, Velmurugan Paramasivam, Eneyw Gardie, Habtamu Dubale, Senthil Kumaran Selvaraj. Experimental investigation of suitable thin layer drying curve to solar maize dryer assisted for biomass back-up heater. Materials Today: Proceedings. 2021; 46 ():7389-7395.

Chicago/Turabian Style

Ewnetu Tefera Chekol; Velmurugan Paramasivam; Eneyw Gardie; Habtamu Dubale; Senthil Kumaran Selvaraj. 2021. "Experimental investigation of suitable thin layer drying curve to solar maize dryer assisted for biomass back-up heater." Materials Today: Proceedings 46, no. : 7389-7395.