MECHMAZONE A New Innovation by the Department of Mechanical Engineering,

SNS College of Engineering.

VOLUME 2,ISSUE 1 [2015-16]

GREETINGS TO ALL, The motive that led to the conception of MECHMAZONE is to impart knowledge

about the recent trends in Mechanical Engineering. The benefit of Mechanical Engineering is that it empowers people to make true their new-fangled ideas. It lets human kind to be productive and leads to creative ideas and such novel innovation is MECHMAZONE. This technical bulletin provides a platform for our students to bring forth their technical views.

MESSAGES

Dr.S.N.SUBBRAMANIAN, CHAIRMAN, SNS GROUP OF INSITUTIONS

As the era of technical innovations has started, technocrats should be encouraged and their innovations should be tapped for better future. The perception of MECHMAZONE was made possible by the budding technocrats of Department of Mechanical Engineering. I wish them all success for their endeavours.

Dr.N.GUNASEKARAN, PRINCIPAL, SNS COLLEGE OF ENGINEERING

In this fast moving world, where everything is rapid and improvement is required

every moment. I wish that launching the Technical Bulletin go past the thousand mile mark and reach the zenith of success

Dr.R.SUDHAKARAN, HEAD OF THE DEPARTMENT, MECHANICAL

For a vehicle progressing with gears, proper meshing of gears is necessary and for an

engineer to progress he needs to mesh his ideas with others. The combined effort of Mechanical engineers has resulted in the technical bulletin MECHMAZONE.I appreciates all the staff and students who worked behind the screen and made the vision reality. I wish them all the very best that their future efforts be successful.

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VISION AND MISSION STATEMENT OF THE DEPARTMENT

VISION

As a department in a vibrant institution, we will be a premier choice for the talented,

prospective students. Be recognized by employers and our alumni as a source of outstanding engineers, entrepreneurs and leaders in the field of Mechanical Engineering, where the best of teaching, learning and research synergize.

MISSION Department of Mechanical Engineering is committed to,

DM-I

Knowledge Dissemination

Establish itself as a world-class academic center through expert pedagogical methods and modern laboratories.

DM-II Research

Provide ample research opportunities aimed at promoting research activities among students and faculty members.

DM-III Industrial

Collaboration

Promote continues industry institute collaboration aimed at promoting employability, entrepreneurship and leadership aptitude among students.

DM-IV Social Ethics

Prepare the students to be psychologically strong and emotionally balanced, imbibed with social consciousness and ethical values.

PROGRAM EDUCATIONAL OBJECTIVES

PEO-I

Core Acquaintance

Apply /Expand their knowledge in basic science for shining in various disciplines of Mechanical Engineering with the emphasis on design, Thermal, Materials and Manufacturing.

PEO-II Engineering Ethos

Enrich expertise to meet the global standards with ethical and social responsibility.

PEO-III Interpretive

Resolve industrial, social and environmental problems with modern engineering tools.

PEO-IV Leadership

Develop skills to lead a team, by effectively communicating at both technical and interpersonal skill levels.

PEO-V Lateral Thinking

Think rationally and pursue every day learning contributing to the development of the profession, nation and safety

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PROGRAM OUTCOMES AND PROGRAM SPECFIC OUTCOMES

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PO –1 Engineering knowledge: Apply the knowledge of mathematics, science, engineering fundamentals, and an engineering specialization to the solution of complex engineering problems.

PO-2 Problem analysis: Identify, formulate, research literature, and analyze complex engineering problems reaching substantiated conclusions using first principles of mathematics, natural sciences, and engineering sciences

PO-3

Design/development of solutions: Design solutions for complex engineering problems and design system components or processes that meet t h e specified needs with appropriate consideration for the public health and safety, and the cultural, societal, and environmental considerations.

PO-4 Conduct investigations of complex problems: Use research-based knowledge and research methods including design of experiments, analysis and interpretation of data, and synthesis of the information to provide valid conclusions

PO-5 Modern tool usage: Create, select, and apply appropriate techniques, resources, and modern engineering and IT tools including prediction and modeling to complex engineering activities with an understanding of the limitations.

PO-6 The engineer and society: Apply reasoning informed by the contextual knowledge to assess societal, health, safety, legal and cultural issues and the consequent responsibilities relevant to the professional engineering practice.

PO-7 Environment and sustainability: Understand the impact of the professional engineering solutions in societal and environmental contexts, and demonstrate the knowledge of, and need for sustainable development.

PO-8 Ethics: Apply ethical principles and commit to professional ethics and responsibilities and norms of the engineering practice.

PO-9 Individual and team work: Function effectively as an individual, and as a member or leader in diverse teams, and in multidisciplinary settings.

PO-10

Communication: Communicate effectively on complex engineering activities with the engineering community and with society at large, such as, being able to comprehend and write effective reports and design documentation, make effective presentations, and give and receive clear instructions.

PO-11

Project management and finance: Demonstrate knowledge and understanding of the engineering and management principles and apply these to one’s own work, as a member and leader in a team, to manage projects and in multidisciplinary environments.

PO-12

Life-long learning: Recognize the need for, and have the preparation and ability to engage in independent and life-long learning in the broadest context of technological change.

PSO1 Programming skills: To interpret component drawings and develop CNC program to machine castings using CNC machines.

PSO2 Drawing analysis: An ability to analyze the design and drawings of Auto components to cater the needs of regional industries.

Osmotic Power Generation

Energy consumption is an important aspect in our day to day life. Energy consumption rate is increasing very rapidly everyday .If this continues as such then the world will

one day face shortage of energy. So it’s time to look for more sources of energy

rather than the non-renewable sources of energy and reduce the rate of consumption of non-renewable energy. There are many

forms of renewable energy sources in the world. The abundant renewable energies include solar energy, tidal energy, wind

energy, Geo thermal energy etc Osmotic power or salinity gradient

power is the energy available from the difference in the salt concentration between seawater and river water. Salinity gradient power is a specific renewable energy alternative that creates renewable and sustainable power by using naturally occurring the basic principle involved in osmotic power generation is OSMOSIS. Osmosis is the movement of solvent molecules through a selectively permeable membrane into a region of higher solute concentration, aiming to equalize the solute concentrations on the two sides.

Kinetic Energy Recovery System KERS

KERS means Kinetic Energy Recovery System and it refers to the mechanisms that recover the energy that would normally be lost when reducing speed. The energy is stored in a mechanical form and retransmitted to the wheel in order to help the acceleration. Electric vehicles and hybrid have a similar system called Regenerative Brake which restores the energy in the batteries. The device recovers the kinetic energy that is present in the waste heat created by the car’s braking process.

The angle of the roller determines the ratio of the Variation and therefore a change in the angle of the roller results in a change in the ratio. So, with the roller at a small radius on the input disc and at a large radius on the output disc the Variation produces a ‘low’ ratio. Moving the roller across the discs to a large radius at the input disc and corresponding low radius at the output produces the ‘high’ ratio and provides the full ratio sweep in a smooth, continuous manner.

In essence a KERS systems is simple, you need a component for generating the power, one for storing it and another to control it all. Thus KERS systems have three main components: The MGU, the PCU and the batteries. They are simply laid out as in the diagram below:

V.K Arunkumar II-Mech

E.Gugan II-Mech

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Active Magnetic Bearings

Magnetic bearing is a bearing which supports a load using magnetic levitation.

Magnetic bearings support moving machinery without physical contact, for

example, they can levitate a rotating shaft and permit relative motion without friction

or wear. In active magnetic bearings (AMB) a stable equilibrium is achieved by

means of one or more control loops. The use of control loop for maintaining the gap between the shaft and bearing differentiate the active magnetic bearings (AMB) from

passive ones. They are in service in such industrial applications as electric power generation, petroleum refining, machine tool operation and natural gas pipelines

Active Magnetic Bearings (AMBs) with their control system inherently offer the possibility of continuously recording bearing forces and rotor displacements. This allows on-line monitoring of critical process parameters and early detection of incipient faults, such that reliability is increased. Furthermore, AMBs can actively influence a machine's behaviour. Thereby, operation can be adjusted and optimized according to process changes. Controller design requires a plant model. Identification, i.e. modelling based on dynamic measurements, is a fast way for obtaining such a model.

Hydraulic Hybrid Vehicle

The Hybrid has hydraulic accumulators for energy storage and power management, hydraulic transformers for efficient power control, and highly efficient and compact in-wheel motors. System behaviour demonstrates that the new control strategy takes advantage of high power density and components, and minimizes disadvantages of low energy density, to achieve enhanced overall efficiency.

EPA is leading the development of hydraulic hybrid vehicles. This breakthrough technology can cost- effectively reduce emissions and drastically reduce fuel consumption while maintaining or improving performance. A delivery vehicle is an excellent application for hybrid technology since its service cycles involve numerous braking events. Hydraulic hybrid technology has significant commercial potential for a wide range of medium-sized vehicles such as urban delivery trucks, shuttle/transit buses, and waste disposal vehicles. Once the accumulator is charged to a desired state, the engine is shut off and power for vehicle propulsion is supplied by the accumulator.

D.Raja manikandan III-Mech

Dominic Edward.D

III-Mech

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Aqua Silencer

Air pollution is most important from the public health of view, because every individual person breaths approximately 22000 time a day, inhaling about 15 to 22 kg of air daily. Polluted air causes physical ill effect decides undesirable aesthetic and physiological effects. Air pollution can be defined as addition to our atmosphere of any material, which will have a dexterous effect on life upon our planet. The main pollutants contribute by automobile are carbon monoxide (CO), unburned hydrocarbon (UBHC), oxides of nitrogen (NOx) and Lead.

Diesel engines are playing a vital role in Road and sea transport, Agriculture, mining and many other industries. Considering the available fuel resources and the present technological development, Diesel fuel is evidently indispensable. Inspire, we cannot ignore the harmful effects of the large mass of the burnt gases, which erodes the purity of our environment every day. It is especially so, in most developed countries like USA and EUROPE. While, constant research is going on to reduce the toxic content of diesel exhaust, the diesel power packs find the ever increasing applications and demand.

Floating Windmills

A floating wind turbine system with a tower structure that includes at least one

stability arm extending there from and that is anchored to the sea floor with a rotatable

position retention device that facilitates deep water installations. Variable

buoyancy for the wind turbine system is provided by buoyancy chambers that are integral to the tower itself as well as the

stability arm. Pumps are included for adjusting the buoyancy as an aid in system transport, installation, repair and removal.

The wind turbine rotor is located downwind of the tower structure to allow

the wind turbine to follow the wind direction without an active yaw drive

system. The relocation of wind farms into the sea can reduce visual pollution if the

windmills are sited more than 12 miles (19 km) offshore, provide better

accommodation of fishing and shipping lanes, and allow sitting near heavily

developed coastal cities. Floating wind parks are wind farms that site several

floating wind turbines closely together to take advantage of common infrastructure

such as power transmission facilities.

G.Santhoshkumar

IV-Mech

R.Ramanichandran IV-Mech

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Chief Editor: Dr.R.Sudhakaran

Editors Faculty: Mr.R.Rajvel

Editors Student: R.Ramanichandran, Ms.R.Agnes