Vajram Ramesh - IP - Academia.edu (original) (raw)
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Papers by Vajram Ramesh - IP
Computer-Aided Design and Applications, 2012
Energy Reclamation Application (E.R.A) makes use of the exhaust energy which is considered as was... more Energy Reclamation Application (E.R.A) makes use of the exhaust energy which is considered as waste and converts the kinetic energy into electricity. It provides cleaner, greener & smarter energy. E.R.A. is applicable to all vehicles, by which cleaner & greener vehicle driving is possible. This paper discusses the device to make use of the exhaust gas produced to generate electricity so as to run the electronic equipment present in the car such as HVAC units, music player, power windows, power seats, power door locks, horns, wipers & washers, ignition systems, starting systems and many other components. Today's car exhaust converters rely on the high catalytic power of the transition metals Pt., Pd or Rh for a reduction of the NO x, CO content in the emission. Unfortunately, the performance of these materials is substantially reduced under highly oxidizing conditions (as e.g. in diesel engines), presumably through oxide formation. Ru, on the other hand, does not seem to suffer from this drawback displaying remarkable conversion rates (CO + 1/2 O 2-> CO 2) even with high oxygen concentrations at the surface. The Platinum or Rhodium as per the specifications of the vehicle can be replaced by the use of Ruthenium (Ru) to achieve higher efficiencies of catalytic conversion at lower cost. Studies for the (mCO+ nO)/Ru(0001) system show that for the systems that form in nature where CO occupies the top site, with increasing oxygen coverage, the adsorption energy of CO can remain practically unchanged or even exhibit a slight increase. Chemical reactions at surfaces lead to CO oxidation, Co-adsorption of CO and O, CO oxidation: surface reaction and finally Laser-induced CO2 formation. The position of the catalytic converter is shown in the diagram.
Journal of Industrial Engineering, International, 2009
This paper discusses the simulation study carried out for proposing one-piece lean line layout wi... more This paper discusses the simulation study carried out for proposing one-piece lean line layout with features of Lean Manufacturing. The lean initiatives that can be addressed are, introducing Kanban replenishment system, better work-in-process, changing the layout, visual management techniques, standardized work for the reduction of cycle time, number of workers, number of setups. To improve the layout in a pump manufacturing industry, VISIO 2007 and Pro Model-Process Simulator Software are used. Pro Model simulation modeling software is a powerful yet easy-to-use simulation tools for modeling all types of systems and processes. Pro Model software is designed to model manufacturing systems ranging from small job shops and machining cells to large mass production, flexible manufacturing systems, and supply chain systems. The study has discussed the lacuna in the existing flow line and has suggested a new one-piece lean line design using the simulation software. The validation is carr...
Energy Reclamation Application (E.R.A) makes use of the exhaust energy which is considered as was... more Energy Reclamation Application (E.R.A) makes use of the exhaust energy which is considered as waste and converts the kinetic energy into electricity. It provides cleaner, greener & smarter energy. E.R.A. is applicable to all vehicles, by which cleaner & greener vehicle driving is possible. This paper discusses the device to make use of the exhaust gas produced to generate electricity so as to run the electronic equipment present in the car such as HVAC units, music player, power windows, power seats, power door locks, horns, wipers & washers, ignition systems, starting systems and many other components. Today's car exhaust converters rely on the high catalytic power of the transition metals Pt., Pd or Rh for a reduction of the NO x, CO content in the emission. Unfortunately, the performance of these materials is substantially reduced under highly oxidizing conditions (as e.g. in diesel engines), presumably through oxide formation. Ru, on the other hand, does not seem to suffer f...
Value Stream Mapping technique involves flowcharting the steps, activities, material flows, commu... more Value Stream Mapping technique involves flowcharting the steps, activities, material flows, communications, and other process elements that are involved with a process or transformation. In this respect, Value stream mapping helps an organization to identify the non-value-adding elements in a targeted process and brings a product or a group of products that use the same resources through the main flows, from raw material to the arms of customers. In this study, a practical study carried out in a manufacturing industry for the manufacture of Machining center is discussed. The main aim was to draw the current state value stream mapping for the main components like Base, Column, Cross Slide, Milling Head and Table. Further, the paper has identified some of the processes which can be carried out by the sub contractor and suggested measures to be taken up by the higher level management in reducing the non value added process. It discusses the reduction in the set up time and cycle time t...
This paper discusses the simulation study carried out for proposing one-piece lean line layout wi... more This paper discusses the simulation study carried out for proposing one-piece lean line layout with features of Lean Manufacturing. The lean initiatives that can be addressed are, introducing Kanban replenishment system, better work-in-process, changing the layout, visual management techniques, standardized work for the reduction of cycle time, number of workers, number of setups. To improve the layout in a pump manufacturing industry, VISIO 2007 and Pro Model-Process Simulator Software are used. Pro Model simulation modeling software is a powerful yet easy-to-use simulation tools for modeling all types of systems and processes. Pro Model software is designed to model manufacturing systems ranging from small job shops and machining cells to large mass production, flexible manufacturing systems, and supply chain systems. The study has discussed the lacuna in the existing flow line and has suggested a new one-piece lean line design using the simulation software. The validation is carried out by creating the wooden prototypes representing the cells and involving the workers to do the assembly of the pump. Standard time study charts are used to calculate the cycle time and change over time.
Computer-Aided Design and Applications, 2012
Energy Reclamation Application (E.R.A) makes use of the exhaust energy which is considered as was... more Energy Reclamation Application (E.R.A) makes use of the exhaust energy which is considered as waste and converts the kinetic energy into electricity. It provides cleaner, greener & smarter energy. E.R.A. is applicable to all vehicles, by which cleaner & greener vehicle driving is possible. This paper discusses the device to make use of the exhaust gas produced to generate electricity so as to run the electronic equipment present in the car such as HVAC units, music player, power windows, power seats, power door locks, horns, wipers & washers, ignition systems, starting systems and many other components. Today's car exhaust converters rely on the high catalytic power of the transition metals Pt., Pd or Rh for a reduction of the NO x, CO content in the emission. Unfortunately, the performance of these materials is substantially reduced under highly oxidizing conditions (as e.g. in diesel engines), presumably through oxide formation. Ru, on the other hand, does not seem to suffer from this drawback displaying remarkable conversion rates (CO + 1/2 O 2-> CO 2) even with high oxygen concentrations at the surface. The Platinum or Rhodium as per the specifications of the vehicle can be replaced by the use of Ruthenium (Ru) to achieve higher efficiencies of catalytic conversion at lower cost. Studies for the (mCO+ nO)/Ru(0001) system show that for the systems that form in nature where CO occupies the top site, with increasing oxygen coverage, the adsorption energy of CO can remain practically unchanged or even exhibit a slight increase. Chemical reactions at surfaces lead to CO oxidation, Co-adsorption of CO and O, CO oxidation: surface reaction and finally Laser-induced CO2 formation. The position of the catalytic converter is shown in the diagram.
Journal of Industrial Engineering, International, 2009
This paper discusses the simulation study carried out for proposing one-piece lean line layout wi... more This paper discusses the simulation study carried out for proposing one-piece lean line layout with features of Lean Manufacturing. The lean initiatives that can be addressed are, introducing Kanban replenishment system, better work-in-process, changing the layout, visual management techniques, standardized work for the reduction of cycle time, number of workers, number of setups. To improve the layout in a pump manufacturing industry, VISIO 2007 and Pro Model-Process Simulator Software are used. Pro Model simulation modeling software is a powerful yet easy-to-use simulation tools for modeling all types of systems and processes. Pro Model software is designed to model manufacturing systems ranging from small job shops and machining cells to large mass production, flexible manufacturing systems, and supply chain systems. The study has discussed the lacuna in the existing flow line and has suggested a new one-piece lean line design using the simulation software. The validation is carr...
Energy Reclamation Application (E.R.A) makes use of the exhaust energy which is considered as was... more Energy Reclamation Application (E.R.A) makes use of the exhaust energy which is considered as waste and converts the kinetic energy into electricity. It provides cleaner, greener & smarter energy. E.R.A. is applicable to all vehicles, by which cleaner & greener vehicle driving is possible. This paper discusses the device to make use of the exhaust gas produced to generate electricity so as to run the electronic equipment present in the car such as HVAC units, music player, power windows, power seats, power door locks, horns, wipers & washers, ignition systems, starting systems and many other components. Today's car exhaust converters rely on the high catalytic power of the transition metals Pt., Pd or Rh for a reduction of the NO x, CO content in the emission. Unfortunately, the performance of these materials is substantially reduced under highly oxidizing conditions (as e.g. in diesel engines), presumably through oxide formation. Ru, on the other hand, does not seem to suffer f...
Value Stream Mapping technique involves flowcharting the steps, activities, material flows, commu... more Value Stream Mapping technique involves flowcharting the steps, activities, material flows, communications, and other process elements that are involved with a process or transformation. In this respect, Value stream mapping helps an organization to identify the non-value-adding elements in a targeted process and brings a product or a group of products that use the same resources through the main flows, from raw material to the arms of customers. In this study, a practical study carried out in a manufacturing industry for the manufacture of Machining center is discussed. The main aim was to draw the current state value stream mapping for the main components like Base, Column, Cross Slide, Milling Head and Table. Further, the paper has identified some of the processes which can be carried out by the sub contractor and suggested measures to be taken up by the higher level management in reducing the non value added process. It discusses the reduction in the set up time and cycle time t...
This paper discusses the simulation study carried out for proposing one-piece lean line layout wi... more This paper discusses the simulation study carried out for proposing one-piece lean line layout with features of Lean Manufacturing. The lean initiatives that can be addressed are, introducing Kanban replenishment system, better work-in-process, changing the layout, visual management techniques, standardized work for the reduction of cycle time, number of workers, number of setups. To improve the layout in a pump manufacturing industry, VISIO 2007 and Pro Model-Process Simulator Software are used. Pro Model simulation modeling software is a powerful yet easy-to-use simulation tools for modeling all types of systems and processes. Pro Model software is designed to model manufacturing systems ranging from small job shops and machining cells to large mass production, flexible manufacturing systems, and supply chain systems. The study has discussed the lacuna in the existing flow line and has suggested a new one-piece lean line design using the simulation software. The validation is carried out by creating the wooden prototypes representing the cells and involving the workers to do the assembly of the pump. Standard time study charts are used to calculate the cycle time and change over time.