Mechanical Engineering

3D Image Correlation provides full 3D coordinates of the surface of the material in test, using two camera stereoscopic view, which provides true deformation and strain data. 2D image correlation, uses one camera, providing relative displacement and strain data. As long as strain is greater than 1% and a longer lens is used, 2D can work well. 3D is much safer and more accurate.

it's steel pipe without any processing and packing.

Recrystallization temperature in metal working can be defined as the temperature at which the plastic deformation takes place perfectly. The stresses induced during the process is are grater than the yield strength and less than the fracture strength.

Proof machining means>> If part have too much dispensable material to remove through out machining than machining is done on the same to remove all material till it will have only 2~3 mm to achieve its final dimensions , this process is called proof machining or if part have 1~2 mm material to remove for coming it final dimensions then Cutting tool path proving done & is called proof machining.

main two type of bearing used in steam turbine:(1)thrust bearing (2)general bearing

The guaranteed heat rate, indicated on performance data table of power plant is calculated in accordance with

the following formula:

HR = (Qms x Hms - Qfw x Hfw + Qhrh x Hhrh - Qcrh x Hcrh - Qas x Has + Qmu x Hmu) x 3600 / W

HR = heat rate [kJ/kWh]

W = gross power output [kW]

Q = mass flow [kg/s]

H = enthalpy [kJ/kg]

Subscript:

ms = main steam

fw = boiler feedwater

hrh = hot reheat steam

crh = cold reheat steam

as = auxiliary steam extraction from turbine cycle for boiler users

mu = make up water at condenser

1. Koyana hydroelectric project in Koyana (Maharashtra) on Koyana river.

2. Mahatma Gandhi hydroelectric works in Sharavathi(Karnataka) on Sharavathi river.

3. Mandi hydrolectric scheme in Mandi(Himachal Preadesh) on Uhl river.

there are different types of modulus it depends on what types of stress is acting on the material if its direct stress then then there is modulus of elasticity,if tis shear stress then its modulus of rigidity and when its volumetric stress it is bulk modulus and so on

Peaking is deviations at vertical weld joints, while banding is deviations at horizontal welds of tank shell , regards engr waqas akram, any engg related questions can be asked at waqas429@hotmail.com

11 gauge steel is 0.125 inches thick.

same as the number of tramps

The endurance limit for steel, as a general term, flattens out at around 30ksi stress. As the cycles go to infinity, the endurance level for most steels stays above 25ksi stress.

Lubricant contamination can be many things, but main ones usually are

Water from various sources include moisture in the air, coolant leaks and rain.

Dust and Dirt

Rust

Weld splatter (Build Debris)

Paint

Fibers

Incorrect oils

Wear particles

Soot

Other oils (often incorrectly used)

Worn Seals

The list goes on but these are the usual things to find. Correct filtration should remove most things (except the oil) but it is better to start with very clean oil to start with. New oil is not always clean oil.

A source of gamma radiation is placed on one side of the weld, and a photographic film is placed on the other. Bubbles and weak points will appear on the film.

no some of the heat is radiated away in forms of light and heat waves

The major advantage of this process is that it can form large and complex workpieces in one operation. The finished product has excellent precision and a fine surface finish.

Centrifugal pumps generally obey what are known as the pump laws. These laws state that the flow rate or capacity is directly proportional to the pump speed; the discharge head is directly proportional to the square of the pump speed; and the power required by the pump motor is directly proportional to the cube of the pump speed.

Not Avaliable for retail sales Military only

IT is not accurately 535 c.... The water should be in the super heated condition... So we go to like a higher temperature region and also higher pressure region to change the steam as super heated steam and then the steam is allowed to expand in the steam turbine... now the power gained is much higher than the water flowes at saturated condition like (200 c - 300 c )... so only we are moving to higher temperature and higher pressure region

Upto and including 2 mm.

Max thickness of sheet metal. Personally, I have worked with 4 inch material on a rare occasion, however I work with 1mm (approx. 0.04 in) up to 50.8mm (approx. 2 in ) quite often. The question is somewhat vague, but if you have enough money, you could have a sheet of metal just about as thick as you want.

4.32kl=__l

Steel with a carbon content above 2.0% is considered cast iron so the limit is 2.0%. Grey cast iron starting at 2.5% is basically a mix of ferrite carbides and graphite. Going higher above cast iron is pure carbide or Fe3C at 6.1%. Above that and it's basically a mix of iron graphites.

The ASTM A-10 and, but it was discontinued and replaced by ASTM 283, the term mild steel is not recommendable for engineering use.

stainless steel

From the NYC scaffolding company in the 1920's: Chesebrough Whitney.