MECHANICAL ROCKS

What is condensation? When the temperature of vapour is reduced below its saturation temperature, condensate occurs.(In which vapour is converted into liquid.) Film wise condensation           ·           Most heat transfer surface on a heat exchanger are made of wettable materials.           ·           During condensation, a film of condensate spreads over these surfaces. As the more vapour condensation on the outside of the film its thickness increases and under the action of gravity the film flows continuously over the surface.           ·           A thermal gradient exists in the film and as a result it acts as a resistance to heat transfer .       ...

connecting rod ·           The figure shows the connecting rod. ·         Its consist of small end bore, big end bore, nuts and bolts, cap,          oil hole etc... ·         The function of connecting rod is to convert reciprocating          motion of the piston into the rotary motion of the crank shaft. ·          It is fitted between the piston and crankshaft. ·          It is made from alloy steel or duralumin in by drop forging. ·          Now a days it is also cast from malleable or spheroidal graphite C.I. WORKING                  The small end of the connecting rod  has either a solid eye or a split eye used c...

Introduction A microprocessor is multipurpose, programmable, clock driven, resister based electronic device that reads binary instruction from the storage device called Memory, binary data as input and process data according to those instructions and generates the result as an output. A central processing unit (CPU) built on a single chip is called a microprocessor . The microprocessor contains electronic circuits with a large number of electronic components (such as transistors, resistors etc...) integrated into a single component called chip . Evolution of Microprocessor Growth of Microprocessor has been several stages starting from 4-bit to present 64-bit processor and multi-core designs. A computer-on-a-chip is a variation of a microprocessor or which combines the microprocessor core (CPU), some memory and input/output (I/O) lines, all on a single chip. ·        4- bit design ·     ...

Introduction Turbojet engine takes its oxygen supply from the surrounding atmosphere. The turbojet engine consist of a diffuser, compressor, combustion chamber, turbine and a expansion nozzle. The air is compressed in to the chamber, heated and expanded by the fuel combustion and then allowed to expand out through the turbine in to nozzle were it is accelerated to high speed to provide propulsion (moving forward) Working Principle : - Atmospheric air enters into the diffuser with the same velocity as that of the propulsive unit. The function of the diffuser is to convert the kinetic energy of entering air in to pressure energy of it. High pressure air now enters into the compressor were its pressure is further increased and its temperature also increases correspondingly. The high pressure and high temperature compressed air now inters in to a combustion chamber in which a liquid fuel is injected through a ring of injectors by means of a pump. In the c...

Water jet cutting  works by forcing a large volume of water through a small orifice in the nozzle. The constant volume of water traveling through a reduced area causes the particles to accelerate.

                TATA MOTORS' ZICA IS NOW CALLED TIAGO  launched may be  on 28th march 2016 cost nearly 5.0 lakh Tata Tiago Specifications Engine Options 1.2-litre, three-cylinder VCTi Revotron Petrol Power – 83.8bhp @ 6,000rpm Torque -114Nm @ 3,500rpm 1.05-litre, three-cylinder Revotorq Diesel Power – 69.04bhp @ 4,000rpm Torque – 140Nm @ 1,800rom – 3,000rpm Transmission Options 5-speed manual Tata Tiago Color Options –  Sunburst Orange, Platinum Silver, Striker Blue, Pearlescent White,   Dimensions Length – 3,746mm Width – 1,647mm Height – 1,535mm Wheelbase – 2,400mm Ground Clearance – 170mm Kerb Weight – 1080kgs Fuel Tank Capacity – 35-liters Suspension System Front – Independent; Lower Wishbone, McPherson Strut with Coil Spring Rear – Semi-Independent, Twist beam with dual path strut Braking system Front – Disc Brake Rear – Drum Brake   ...

ROBOTICS Introduction Robot is an automatically controlled material handling unit that is widely used in the manufacturing industry robots are generally used for high volume production. The term robot was derived from Czech language in 1920 which means forced labour. the official definition for the robot was given by robot institute of America Definition An industrial robot is a reprogrammable, multifunctional manipulator designed to move material, parts, tool (or) special devices through a variable programmed motions for the performance of variety of tasks. A manipulator is mechanical element that consist of series of joints and links. HISTORY OF ROBOTS Science fiction has contributed lot in the development of robots. Mid 1700's - human sized mechanized dolls were developed. Mid 1800's - mechanical dolls were able to play music. 1952         - First NC machine was developed. 1953  ...