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The Society of Mechanical Engineers an elite student initiative incorporation operating under the Department of Mechanical engineering, Faculty of Engineering and Technology, SRM University, Ramapuram organized a departmental exhibition of the projects done by final year students on April 4, 2012 at the campus. The projects are the parts of the curriculum focused on bring out the practical applications of the learnt engineering concepts and to overcome the practical constrains associated with it.
This concept enables the students to study and analyze the various engineering systems and enables them think differently to achieve them. The project was presented by the first batch of mechanical engineering students of the campus, Dr. Abdul Ghani ,The Dean , Dr. Antony Michael Raj, The Vice-principal , Mr. K.C. Udaiyakumar, The Head of Department-Mechanical , the staff members for various departments observed the projects and appreciated the students for their efforts.
Students irrespective of engineering discipline witnessed the exhibits and were delighted to hear from the teams their experience and the concept which was tried to be achieved. This exhibit was a great inspiration for the junior students and changed their perspective of a final year project.
Steadily escalating oil prices, increased environmental concerns, and poor international politics have sparked new interests for alternative fueled vehicles. There are numerous alternative fuel technologies including gasoline-hybrids, ethanol, bio fuels, LPG, CNG, etc., These technologies are changing rapidly and consumers having difficulty trying to decipher which type of fuel is the most worthy investment. This study provides a simple breakdown of the pros and cons of the alternative fuel technologies as well as their availability, environmental effects, etc. the main idea behind biogas retrofitted multifuel engine is to modify an existing vehicle engine to arrive at a flexible multifuel platform suitable for operating with various liquid and gaseous fuels.
The Homogeneous Charge Compression Ignition Engine, HCCI, has the potential to combine the best of the Spark Ignition and Compression Ignition Engines. The engine operates with high compression ratio and lean mixtures giving CI engine equivalent fuel consumption or better. HCCI means that the fuel and air should be mixed before combustion starts and that the mixture is auto ignited due to the increase in temperature from the compression stroke.
Thus HCCI is similar to SI in the sense that both engines use a premixed charge and HCCI is similar to CI as both rely on auto ignition for combustion initiation. The HCCI combustion process puts two major requirements on the conditions in the cylinder, I)The temperature after compression stroke should equal the auto ignition temperature of the fuel/air mixture ii) the mixture should be diluted enough to give reasonable burn rate.
This project harvests energy from speed breaker by making gear arrangement and using electronic gadgets. When vehicle is in motion it produces various forms of energy, due to friction between vehicles wheel and road i.e. rough surface heat energy is produced. The principle involved is potential energy to electrical energy conversion.
There is a system to generate power by converting the potential energy generated by a vehicle going up on a speed breaker into kinetic energy. When the vehicle moves over the inclined plates, it gains height resulting in increase in potential energy, which is wasted in a conventional rumble strip. When the breaker comes down, the sprocket is fitted to a spring which in turn is fitted to a chain mechanism which in turn rotates a geared shaft loaded with recoil springs. The output of this shaft is coupled to a dynamo to convert kinetic energy into electricity. This project is a prototype of the above explanation and would generate a maximum of 12 volts.
The present invention is related to the field of automatic food processing machines, particularly in the field of dosa making. This invention has the provision for completely automatic functions with only one switch for the machine to start and stop. It is also compact compared to the other devices of this character.
The machine has been made for residential purpose after examining the statistical data on the size, shape and cost requisite .Time requirement of the specific processes that are involved in making the dosa from rice and dal led to the finding of the bottleneck which is the batter grinding system. Thus the time for making a dosa is reduced by utilizing a mixer instead of the grinding chamber, which utilizes a 500w, 18krpm to grind the rice and dal in less than three minutes.
A regenerative brake is an energy recovery mechanism which slows a vehicle or object down by converting its kinetic energy into another form, which can be either used immediately or stored until needed. This contrasts with conventional braking systems, where the excess kinetic energy is converted to heat by friction in the brake linings and therefore wasted.
The most common form of regenerative brake involves using an electric motor as an electric generator. In electric railways the generated electricity is fed back into the supply system, whereas in battery electric and hybrid electric vehicles, the energy is stored in a battery or bank of capacitors for later use. Energy may also be stored mechanically via pneumatics, hydraulics or the kinetic energy of a rotating flywheel.
The generation of power using differential gear of the vehicle .In this prototype, motor is used instead of an engine. Through a belt drive it is connected to the differential gear. Output shaft from the differential gear contains two sprockets. Similarly a shaft, with a sprocket, of similar dimension is attached parallel. Using a chain drive, the alternator is coupled and the bulb attached to it glows once it starts working. Similarly if power with high torque is required, alternator is to be coupled with the shaft attached at the bottom. This is based on the principle that energy can neither be created nor be destroyed but can be transformed from one form to another. This helps in generation of power while the vehicle is in the running condition.
Robotics is a combination of different engineering fields combine to form the field of Mechatronics of which Robotics is a part.The robot that we made is a command and control robot. This robot will take commands from the user in the form of control signals and performs the required action.
The idea behind this robot is to provide a line of defence to a bomb disposal squad against the life threatening risk, faced by them in the event of an explosion. It provides the squad a safe distance to dispose off a bomb, which he normally has to do being physically present on the site.
At the present fossil fuel are depleting very fast and over a period of time there will be severe scarcity of the same. To avoid this type of problems we need other type of energy sources like non-conventional energy sources. In the modern trend automobiles have certain disadvantages soon as fuel cost relative to mileage, pollution and less efficiency. Hence, we have made an attempt to design and fabricate an ultimate system (Solar Car) which would produce effective result than the existing system.
This will be very useful to the future needs of the world. Goal of this project was to implement the most efficient and less polluting vehicle. In our project, vehicle is operated by solar energy. Solar energy is converted into electrical energy by the solar cell. It is stored by a battery 12 Volt D.C. Then it is used to drive the D.C motor.
A turbocharger is effectively an air pump using engine exhaust gases to deliver better engine efficiency and performance. These exhaust gases drive a turbine wheel, which is coupled to a compressor. This supplies more air at increased pressure to the engine’s combustion chamber than a normally aspirated configuration would.
The compressed air very hot as a result of both compression and friction, so an intercooler is used to reduce the temperature-increasing the density and allowing even more air into the combustion chamber. The increased air density from the intercooler, a large amount of fuel can be used while maintaining the same air-fuel ratio, which results in more power and increased efficiency from a smaller engine with lower levels of SMOG forming and GHG emissions.
The turbocharger now becomes a fundamental emissions control addition, notably for NOx reduction.Turbocharging coupled with high pressure fuel injection and advanced combustion solutions makes combustion not only more thorough and fuel efficient, but also cleaner.
A hydrogen vehicle is an alternative fuel vehicle that uses hydrogen as its onboard fuel for motive power. The power plants of such vehicles convert the chemical energy of hydrogen to mechanical energy either by burning hydrogen in an internal combustion engine, or by reacting hydrogen with oxygen in a fuel cell to run electric motors. Widespread use of hydrogen for fueling transportation is a key element of a proposed hydrogen economy. Hydrogen fuel does not occur naturally on Earth and thus is not an energy source, but is an energy carrier. However, it can be produced from a wide range of sources that are intermittent, too diffuse or too cumbersome to directly propel vehicles.