Open Cycle Gas Turbine is an internal combustion engine that operates on rotary motion instead of reciprocating motion.This turbine works on the principle of Brayton Cycle. In this gas turbine, the air is taken from the atmosphere which works as working fluid and after completion of cycle it is released to the atmosphere again. These turbine are…
Hydraulic Diameter is the characteristics length that is used to calculate the Reynolds Number (Re) to determine whether a flow is turbulent or laminar. It is used when handling flow in non-circular tubes and channels. Hydraulic diameter converts a cross-section of any geometrical shape into a circular cross-section. Using the Reynold Number (Re), it can be…
In this article we will see the design and working of Velox Boiler which is used steam power plant. First lets see the principle of its working. Principle of Volex Boiler :- Volex Boiler is based on the fact that when the vlocity of gas becomes more than the velocity of sound, the transmission of…
Chip Thickness ratio is defined as the thickness of chip before cutting to the thickness of chip after cutting. During cutting the cutting edge of tool is positioned at a certain distance below the original. This corresponds to the thickness of the chip prior to chip formation t1 and as the chip is formed along the…
Watt governor is the simplest form of centrifugal governors. Centrifugal governors are special type of governors with a feedback system that controls the speed of an engine by regulating the flow of fuel or working fluid.Watt governor has two fly balls attached to two arms of negligible masses. Watt governor is used to supply the…
As the name suggests, the Shaper Machine is used to give different shapes to the workpiece.Shaper Machine is commonly used to produce flat surfaces, grooves, slots, etc.In shaper machine, a single point cutting tool is used which reciprocates and rubs the workpiece and removes unwanted metal from the workpiece in the form of chips. Image…
Slotter Machine is a resiprocating machine in which, the ram which holds the tool resiprocates in vertical direction and the cutting process is done only in the downward stroke and not in the downward stroke. This machine is similar to a shaper or planar machine. The working principle of Slotter Machine is same as that of Shaper Machine. The only difference between a shaper machine and slotter machine is…
A quick return mechanism is an system to produce a resiprocating effect such that time taken by system in return stroke is less time taken by it in the forward stroke.In quick return mechanism, a circular motion is converted into reciprocating motion just like crank and lever mechanism but it has return stroke time is…
Laser Beam Machining is a thermal machining process which uses laser beam to produce heat and remove material from workpiece. In this machining, metal is removed from workpiece by melting and vapourizing of metal particles in a controlled from its surface using heat from laser.Laser Beam machining is widely used in cutting sheet and drilling…
A clutch is a mechanical device which is used to transmit rotating motion or torque from one shaft to another shaft when required. Clutch provides a temporary connection between input and output shaft. Clutch is situated between the engine and the gearbox. Using the clutch, we can engage and disengage power transmission from one shaft…