Design and fabrication of dual chargeable bicycle

With the increase in fuel prices, pollution content in atmosphere and due to gradual end of the non renewable sources of energy we have to alter the source of our energy in our vehicles. Considering all these reasons we have to switch over to other sources of energy instead of using conventional sources such as petrol which in future will be going to extinct. One way to alter the energy source is to go for electric vehicles or e bikes. Electric driven vehicles uses battery as a source of energy which provide power to motor which in turn provide  torque to wheels .The old design of electric bicycle was having only a single mode of charging, it was just capable to travel 15 km through battery and was not ergonomically good. The new design uses a low rpm alternator for charging the battery by keeping it in contact with front wheel .A Motor of 0.5hp provides torque to the rear wheel and the gear ratio is kept 5:2 .battery discharging time is approximately 2 hrs and charging time through alternator is 1 hour and the bicycle can attain a maximum speed of 15 km/hr. This work is more beneficial in hilly region and confined areas like college campus and schools, generating zero pollution, zero noise effect and no fuel consumption. Keywords: Dual chargeable bicycle, EABs, EPBs, Battery, Alternator, Controller

Investigations on Material Removal Rate of AISI D2 Die Steel in EDM using Taguchi Methods

Electrical discharge machining (EDM) process is one of the most commonly used non conventional precise material removal & world class standard non contacting machining processes. The work piece must be a conductive electricity material which is submerged into the dielectric fluid for better erosion. This process widely used for machining of hard, brittle, component   material,  complex geometry, intricate shapes, making moulds & deep holes by arc erosion in all kinds of electro conductive materials. The workpiece material selected in this study is AISI D2 Die Steel. The input parameters are voltage, current, pulse on time and pulse off time. L9 orthogonal array was selected as per the Taguchi method. The data have been analyzed using Minitab15 Software. The effect of above mentioned parameters upon machining performance characteristics such as Material Removal Rate (MRR) is studied and investigated on the machine model C-3822 with PSR-20 Electric Discharge Machine.  The copper alloy was used as tool material. Keywords: EDM, MRR, ANOVA, Taguchi method, AISI D2 Die steel, copper electrod

Investigations on Tool Wear Rate of AISI D2 Die Steel in EDM using Taguchi Methods

EDM has become an important and cost-effective method of machining extremely tough and brittle electrically conductive materials. It is widely used in the process of making moulds and dies and sections of complex geometry and intricate shapes. The workpiece material selected in this study is AISI D2 Die Steel. The input parameters are voltage, current, pulse on time and pulse off time. L9 orthogonal array was selected as per the Taguchi method. The data have been analyzed using Minitab15 Software. The effect of above mentioned parameters upon machining performance characteristics such as Tool Wear Rate (TWR) are studied and investigated on the machine model C-3822 with PSR-20 Electric Discharge Machine.  The copper alloy was used as tool material.The results obtained showed that the optimum condition for tool wear rate (TWR) is A3, B2, C2, D3 i.e. Ton (40µs),Toff (8 µs), Ip (8 amp) and Vg (60V). The order of process parameters influencing the tool wear rate is Toff 12>"> Ip 12>"> Ton 12>"> Vg. Hence, pulse off parameter has more contribution to tool wear rate whereas gap voltage has the least contribution. As per the optimal level of parameters, the optimum value of TWR is 0.117 mm3/min. These results were validated by conducting confirmation experiments and found satisfactory. Keywords: EDM,TWR, MRR, ANOVA, Taguchi method, AISI D2 Die steel, copper electrod

Role of Cloud Computing Technology in Agriculture Fields

Use of Cloud computing technology in agricultural areas has greater chance in the overall development of India. An effective implementation of cloud computing is encouraging in agricultural sector. Cloud Computing is emerging today as a commercial infrastructure that eliminates the need for maintaining expensive computing hardware, software, Information technology, staff, infrastructure, recourses and their maintenance. Cloud computing is a network-based environment that focuses on sharing computations, Cloud computing networks access to a shared pool of configurable networks, servers, storage, service, applications & other important computing resources. In modern era of cloud computing technology very helpful for centralized the all-agricultural related data bank (Soil-related, weather, Research, Crop, Farmers, Agriculture marketing, fertilizers and pesticide information) in the cloud.  In this paper, also discuss Computing model, characteristics, deployment model, cloud service model, cloud benefits and challenge of cloud computing in agriculture field. Keywords: Cloud computing, Community model, Hybrid model, Public model, Private model, Agriculture, IaaS, Paas & Saa