Where thrust bearing located in steam turbine?
The thrust pads will be there at the front or non drive end of the turbine side....These are usually used to limit the axial displacement of the rotor( Means to minimize the movement of rotor axially in order to maintain the axial clearance between the moving blades and the fixed blades of steam turbine rotor).....
Difference between air refregeration cycle and reversed carnot cycle?
the Carnot cycle has 2 constant specific volume processes (heat in & heat out)
the air refrigeration cycle is based on a brayton cycle which has two constant pressure processes.
If the test is set to load-control , it means that the stress will not drop once the fracture become unstable. In displacement control the stress may drop at unstable fracture.
What is turbine overspeed trip?
Typically two balls with springs holding them down, When the turbine spins too fast, the centrifugal force pushes the balls past the resistance of the springs at which point they hit a lever that stops steam/compressed gas flow to the turbine and the turbine shuts down. They are designed to keep the turbine from going so fast that it damages itself or the piece of equipment it is driving.
What is steam turbine governor valve?
In large turbines, a valve controls steam flow to groups of nozzles. The number of open valves controls the number of nozzles in use according to the load. A bar-lift or cam arrangement operated by the governor opens and closes these valves in sequence. Such a device is a multi-port valve. Using nozzles at full steam pressure is more efficient than throttling the steam.
In Venturi meter losses are less so coefficient of discharge is higher whereas in orifice meter due to no convergent and divergent cones there are more losses and hence its coefficient of discharge is less.In venturi meter losses are low due to steamline shape of the diffuser and the pressure gradient is not abrupt as in case of orifice meter.
What is the difference between mold and cavity?
mould is a hollowed out block that is filled with a liquid like plastic , glass, metal, ceramic raw material. while cavity is a small passage for flow of material in mould or die.
Aerodynamic shapes are those that tend to minimize or eliminate the production of turbulence in a liquid medium (including air and gasses) as the medium and the shape move relative to one another. It makes no difference if the shape is moving through the medium, or the medium is moving around the shape. The point is the same: lower turbulence. Aerodynamic shapes typically have tapered leading edges that present to the stream. Then they typically widen to their maximum width and continue to taper to their trailing edge. The waterline of a kayak or canoe are good example of a typical aerodynamic shape.
What is a grinding machines and how to use a grinding machine?
A grinding machine uses an abrasive wheel to final machine precision components to fine tolerances ,it is possible to achieve accuracy down to less than .001mm.There are 3 general types of grinding machine,Internal which machines bores,external which grinds outside diameters.and surface which grinds flat surfaces on components.There are other types of specialized grinding machine like gear/spline grinders etc .
The grinding wheel rotates at high speed and is "dressed/trued up" by passing an industrial diamond over its surface.
The wheel is then bought into contact with the work piece which will also be rotating when internal or external grinding or moving from left to right beneath the wheel when surface grinding.The work piece is now moved accross the face of the wheel to remove fine amounts of material until the required size is reached.
Ther are many factors to take into account when grinding.ie type or grade of wheel used,rotational speed of wheel,speed of work piece,speed that wheel is moved/traversed accross workpiece.The way the wheel is dressed/trued up will affect how it cuts, and the surface finish achieved.
What is the means of A234 WPB?
A234 WPB is a code for pipe fittings. The code is a standard established by ASTM to refer to pipe fittings made of wrought carbon steel that can withstand moderate to high temperatures.
What are dangerous laminating machine?
a laminating machine is safe as long as you dont stick your hands in the roller
WHAT is the difference in hydraulic oil servo 68 to HLP 46?
viscosity differs.
servo68 normal application
hlp46 high pressure requirement and precision movement required like in rolling mills of roll force cyclinder
Cold bending of tubes is permitted in asme?
Yes - Cold bending is allowed by ASME B31.3. The requirements are detailed in Section 332. Generally the most difficult aspect of cold bending to ASME B31.3 standards is the requirement that the pipe not exceed 8% of the outside nominal diameter for internal pressure and 3% for external pressure. Thin wall tube and pipe generally require a mandrel bend.
What are the effects of humidity on gas turbine performance?
an increase in relative humidity will increase the Gas turbine output. and thermal efficiency. when the ambient tempeature is high at that time also if RH is high it will have a slight positive impact on GT output & Efficiency.
What do you mean by head of pump?
Total pump head is the sum of suction and discharge pressure in mtr.
ie. 1 bar =10.33 metres of water column
Monel is a nickel alloy, SR probably means stress relieved.
What does HSI stand for in the drilling industry?
In the field of oil/gas drilling, it refers to hydraulic horsepower per square inch.
Tension = Module x deformation
Deformation= 2,51x10^-3 = 0,25%
What gauge steel is 187 thick?
Between 6 and 7 gauge.
6 is thicker at .194 inch.
7 is thinner at .179 inch.