Vijander Kumar - Academia.edu (original) (raw)
Papers by Vijander Kumar
Depletion of fossil fuel resources is the main cause of hike in fossil fuel price which lead to c... more Depletion of fossil fuel resources is the main cause of hike in fossil fuel price which lead to concern for alternate resources of energy such as nuclear energy, renewable energy resources but Fukushima Daiichi accident was a turning point in the call for renewable energy. Now it is considered that renewable energy resources are more desirable source of fuel than nuclear power due to the absence of risk and disasters. In order to meet challenges, future energy policies should put more emphasis on developing the potential of energy sources, which include hydro energy, solar energy biofuel energy, wind energy all these comes under renewable energy resources. By replacing fossil fuels with renewable energy sources Co 2 emission in environment can be reduced which is the main factor for greenhouse gas effect. In this paper, the alternative resources of renewable energy are studies.
In the present research work an attempt is made to understand the effect of TIG welding parameter... more In the present research work an attempt is made to understand the effect of TIG welding parameters such as welding current, gas flow rate, welding speed, weld torch angle that are influences on responsive output parameters such as weld penetration, width, fusion area, micro hardness, and tensile strength of welding. Taguchi method is used to get the optimal parameters. In Taguchi method, L9 orthogonal array is used for experimentation. The effort made to investigate optimal machining parameters and their contribution for producing better weld quality and higher Productivity. After welding test for weld penetration, weld width, fusion area, tensile test, and micro hardness have been conducted. The significance of the factors on overall output feature of the weldment has also been evaluated by analysis of variance (ANOVA).
Bioscience Biotechnology Research Communications, 2018
In order to fulfi l the energy demand of world, there is a need to adopt a new energy system whic... more In order to fulfi l the energy demand of world, there is a need to adopt a new energy system which is based on use of renewable energies resources. Emphasis should be on integration of the various forms of renewable energy like solar energy, geothermal energy, wind energy and biofuels energy. These energy resources have potential to replace the dependency of world on fossil fuels if proper policies for utilization of these resources have to be adopt. Change in climate and independency of energy are master stroke for bioenergy development. Many researcher have focused on the biofuels performance in reducing carbon emissions, with questions marks on their potential in this respect. Governments of many countries are setting targets to enhance the proportion of biofuels in their energy mix for the purposes of fulfi ll their energy security and rural development. There are lot of benefi ts of biofuels energies like job creation and diversifi cation of the economy in rural areas, reliable market for agricultural produce especially for energy crops especially in developing countries. In present review different biofuels sources with their impact on environment and amount of production biomass in world has been discussed
Bioscience Biotechnology Research Communications, 2018
Biofuel based energy is likely to be promoted to reduce the dependency on fossil fuels. The most ... more Biofuel based energy is likely to be promoted to reduce the dependency on fossil fuels. The most common alternative fuel is FAME biodiesel that is produced by trans esterifi cation. But some disadvantages are also associated with biodiesel; new technologies are under investigation for the production of other biofuels. In the present study green diesel was produced by hydro processing of waste cooking oil. The performance and emission characteristics of green diesel were investigated in single cylinder CI engine. The results were also compared by the corresponding results obtained by conventional diesel fuel. The engine was tested in a series of steady state operating conditions at different load by keeping constant speeds of 1500 rev/min. The performance parameters like brake thermal effi ciency (BTE %), specifi c fuel consumption (SFC in kg/h) and emissions parameters like HC, CO 2 , CO and NOX emissions were investigated. It was observed that BTHE of green diesel is 23% and 21.76% for petro diesel at 20% load, at 40% load it is 34.24% for green diesel and 25.8% for petrol diesel at 60% load it is 35.93% for green diesel and 31.74 for petro diesel at 80% load it is 38.24 for green diesel and 31.66 % for petro diesel at 100% load it is 31.6% for both green diesel and petro diesel These results show that BTHE increases for green diesel fuels at all load except full load condition. From the results, it was found that for green diesel BSFC(kg/kwh) is1.83 for green diesel and 2.57 for petro diesel at no load condition and at full load it is 0.267for green diesel and 0.270 for petro diesel which is less as compare to petro diesel. It was observed that CO (%VOL) at load (%) 20,40,60,80,100 for green diesel are 0.06, 0.03,0.02,0.02,0.03 and for petro diesel are 0.06,0.04,0.03,0.03 and 0.04 respectively. It is observed that HC (PPM) emission at load (%
International Journal of Research in Engineering and Technology, 2016
The present work deals with optimization of welding process variables by using Metal inert gas we... more The present work deals with optimization of welding process variables by using Metal inert gas welding. In this process input variables are voltage (V), current (A) and welding speed(S) with tensile properties, hardness, and penetration as responses of low carbon steel (ASTM A29). The design of experiments based on Taguchi orthogonal array [L9], acquires Analysis of variance (ANOVA) to determine the influence of parameters with the optimal condition.
International Journal of Engineering, Science and Technology, 2017
Three input machine parameters namely current, welding speed and gas flow rate at three different... more Three input machine parameters namely current, welding speed and gas flow rate at three different levels have been considered in order to find out the influence of parameters on weld bead geometry, i.e. weld bead width, penetration and angular distortion. Taguchi method has been used in order to analyse the effect of various parameters on the weld geometry. Orthogonal array L9 has been applied for conduct in the experimentation. Based on the experimental data, the mathematical model has been developed using analysis of variance (ANOVA). It is found that TIG welding with flux powder SiO 2 increases the penetration and decreases the bead width, and tends to reduce angular distortion of the welds.
Bioscience Biotechnology Research Communications, 2019
IJAAST, 2018
Depletion of fossil fuel resources is the main cause of hike in fossil fuel price which lead to c... more Depletion of fossil fuel resources is the main cause of hike in fossil fuel price which lead to concern for alternate resources of energy such as nuclear energy, renewable energy resources but Fukushima Daiichi accident was a turning point in the call for renewable energy. Now it is considered that renewable energy resources are more desirable source of fuel than nuclear power due to the absence of risk and disasters. In order to meet challenges, future energy policies should put more emphasis on developing the potential of energy sources, which include hydro energy, solar energy biofuel energy, wind energy all these comes under renewable energy resources. By replacing fossil fuels with renewable energy sources Co 2 emission in environment can be reduced which is the main factor for greenhouse gas effect. In this paper, the alternative resources of renewable energy are studies.
Depletion of fossil fuel resources is the main cause of hike in fossil fuel price which lead to c... more Depletion of fossil fuel resources is the main cause of hike in fossil fuel price which lead to concern for alternate resources of energy such as nuclear energy, renewable energy resources but Fukushima Daiichi accident was a turning point in the call for renewable energy. Now it is considered that renewable energy resources are more desirable source of fuel than nuclear power due to the absence of risk and disasters. In order to meet challenges, future energy policies should put more emphasis on developing the potential of energy sources, which include hydro energy, solar energy biofuel energy, wind energy all these comes under renewable energy resources. By replacing fossil fuels with renewable energy sources Co 2 emission in environment can be reduced which is the main factor for greenhouse gas effect. In this paper, the alternative resources of renewable energy are studies.
In the present research work an attempt is made to understand the effect of TIG welding parameter... more In the present research work an attempt is made to understand the effect of TIG welding parameters such as welding current, gas flow rate, welding speed, weld torch angle that are influences on responsive output parameters such as weld penetration, width, fusion area, micro hardness, and tensile strength of welding. Taguchi method is used to get the optimal parameters. In Taguchi method, L9 orthogonal array is used for experimentation. The effort made to investigate optimal machining parameters and their contribution for producing better weld quality and higher Productivity. After welding test for weld penetration, weld width, fusion area, tensile test, and micro hardness have been conducted. The significance of the factors on overall output feature of the weldment has also been evaluated by analysis of variance (ANOVA).
Bioscience Biotechnology Research Communications, 2018
In order to fulfi l the energy demand of world, there is a need to adopt a new energy system whic... more In order to fulfi l the energy demand of world, there is a need to adopt a new energy system which is based on use of renewable energies resources. Emphasis should be on integration of the various forms of renewable energy like solar energy, geothermal energy, wind energy and biofuels energy. These energy resources have potential to replace the dependency of world on fossil fuels if proper policies for utilization of these resources have to be adopt. Change in climate and independency of energy are master stroke for bioenergy development. Many researcher have focused on the biofuels performance in reducing carbon emissions, with questions marks on their potential in this respect. Governments of many countries are setting targets to enhance the proportion of biofuels in their energy mix for the purposes of fulfi ll their energy security and rural development. There are lot of benefi ts of biofuels energies like job creation and diversifi cation of the economy in rural areas, reliable market for agricultural produce especially for energy crops especially in developing countries. In present review different biofuels sources with their impact on environment and amount of production biomass in world has been discussed
Bioscience Biotechnology Research Communications, 2018
Biofuel based energy is likely to be promoted to reduce the dependency on fossil fuels. The most ... more Biofuel based energy is likely to be promoted to reduce the dependency on fossil fuels. The most common alternative fuel is FAME biodiesel that is produced by trans esterifi cation. But some disadvantages are also associated with biodiesel; new technologies are under investigation for the production of other biofuels. In the present study green diesel was produced by hydro processing of waste cooking oil. The performance and emission characteristics of green diesel were investigated in single cylinder CI engine. The results were also compared by the corresponding results obtained by conventional diesel fuel. The engine was tested in a series of steady state operating conditions at different load by keeping constant speeds of 1500 rev/min. The performance parameters like brake thermal effi ciency (BTE %), specifi c fuel consumption (SFC in kg/h) and emissions parameters like HC, CO 2 , CO and NOX emissions were investigated. It was observed that BTHE of green diesel is 23% and 21.76% for petro diesel at 20% load, at 40% load it is 34.24% for green diesel and 25.8% for petrol diesel at 60% load it is 35.93% for green diesel and 31.74 for petro diesel at 80% load it is 38.24 for green diesel and 31.66 % for petro diesel at 100% load it is 31.6% for both green diesel and petro diesel These results show that BTHE increases for green diesel fuels at all load except full load condition. From the results, it was found that for green diesel BSFC(kg/kwh) is1.83 for green diesel and 2.57 for petro diesel at no load condition and at full load it is 0.267for green diesel and 0.270 for petro diesel which is less as compare to petro diesel. It was observed that CO (%VOL) at load (%) 20,40,60,80,100 for green diesel are 0.06, 0.03,0.02,0.02,0.03 and for petro diesel are 0.06,0.04,0.03,0.03 and 0.04 respectively. It is observed that HC (PPM) emission at load (%
International Journal of Research in Engineering and Technology, 2016
The present work deals with optimization of welding process variables by using Metal inert gas we... more The present work deals with optimization of welding process variables by using Metal inert gas welding. In this process input variables are voltage (V), current (A) and welding speed(S) with tensile properties, hardness, and penetration as responses of low carbon steel (ASTM A29). The design of experiments based on Taguchi orthogonal array [L9], acquires Analysis of variance (ANOVA) to determine the influence of parameters with the optimal condition.
International Journal of Engineering, Science and Technology, 2017
Three input machine parameters namely current, welding speed and gas flow rate at three different... more Three input machine parameters namely current, welding speed and gas flow rate at three different levels have been considered in order to find out the influence of parameters on weld bead geometry, i.e. weld bead width, penetration and angular distortion. Taguchi method has been used in order to analyse the effect of various parameters on the weld geometry. Orthogonal array L9 has been applied for conduct in the experimentation. Based on the experimental data, the mathematical model has been developed using analysis of variance (ANOVA). It is found that TIG welding with flux powder SiO 2 increases the penetration and decreases the bead width, and tends to reduce angular distortion of the welds.
Bioscience Biotechnology Research Communications, 2019
IJAAST, 2018
Depletion of fossil fuel resources is the main cause of hike in fossil fuel price which lead to c... more Depletion of fossil fuel resources is the main cause of hike in fossil fuel price which lead to concern for alternate resources of energy such as nuclear energy, renewable energy resources but Fukushima Daiichi accident was a turning point in the call for renewable energy. Now it is considered that renewable energy resources are more desirable source of fuel than nuclear power due to the absence of risk and disasters. In order to meet challenges, future energy policies should put more emphasis on developing the potential of energy sources, which include hydro energy, solar energy biofuel energy, wind energy all these comes under renewable energy resources. By replacing fossil fuels with renewable energy sources Co 2 emission in environment can be reduced which is the main factor for greenhouse gas effect. In this paper, the alternative resources of renewable energy are studies.