Mechanical Engineering

compensation of load by connecting a compensating device which adjust the real and reactive power in the distribution side or load side.

Depends on what pipe you are asking about. Most pipe such as PVC has a max heat rating for internal and external temperatures. this is why regular white PVC should never be used for hot water from a hot water heater which can be 120 degrees (F) or more and melt regular PVC. That is why they recommend using CPVC which has a higher temperature rating. Depends on what pipe you are asking about. Most pipe such as PVC has a max heat rating for internal and external temperatures. this is why regular white PVC should never be used for hot water from a hot water heater which can be 120 degrees (F) or more and melt regular PVC. That is why they recommend using CPVC which has a higher temperature rating.

A condensing turbine uses all the energy from the steam going from high pressure turbine to secondary turbine to condensing turbine then sends the condensate back for reheating. where a non condensing turbine just uses the high pressure aspect of the steam then returns the low pressure stream back to be reheated. Condensng turbines utilises the entire available drop from high pressure to the vacuum in the condenser; a back pressure turbine only utilises only the top part, whereas an exhaust steam turbine utilises only th bottom part of the pressure drop. Hope that helps.

A truss is a framework consisting of beams, girders, or rods which lie in a single plane. It is used in large spans and heavy loads, providing a support for bridges and roofs.

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Ansi 150 is a pressure grade of flange ie. Ansi #150 Flange. For steel flanges this is specified by ANSI B16.5.

Even with the fantastic analytical tools we have today, almost never is a product developed that has no problems on the first prototype. Something unanticipated always shows up. Also, the experience of doing something really helps, so usually after designing and making a product prototype, ideas for improvements come. It's usually a few cycles before the improvements become so minor they are not worth the next iteration. It can be extremely difficult to know when to stop development on a product.

A tower speaker with usually an 8 inch or bigger sub-whoofer in it A tower speaker with usually an 8 inch or bigger sub-whoofer in it

Pewter melts at 300 degrees Celsius and 572 degrees Fahrenheit.

In a dry liner the coolant runs in channels in the block, and the liner is only like a sleeve stuck in a metal hole. Poorer cooling, but an easier build.

Varies depending on the electroylite solution used (several). Can be hard to soft. Electroless Nickel is typically a more advanced form of (industrial) plating and the low phosphorus variety can achieve hardness's up to Rockwell "C" rated or HRC 60 which is very hard, like hardened steel.

So, is it an industrial coating (electroless) or is it being plated over steel to receive a chrome finish (automobile bumper)?

Typically the introduction of impurities into nickel actually makes it harder as pure nickel is quite soft and malleable.

Hope this helps.

To measure things, or is that just too obvious? A.K.A. Vernier Callipers

High hotwell level will get the cooling water tubes of condenser submerged in the condensate hence cooling efect will be reduced consequentaly vacuum will drop.

Low hotwell level will lead to low suction pressure of Condensate Extraction Pump hence it may lead to cavitation.

Transition metals are less reactive than alkali metals and alkaline-earth metals. They tend to be shiny and conduct thermal energy well.

Hope this helps!~ I first I didn't get it either. : )

A Conveyor belt's head pulley is also known as the drive pulley, its on this end of a conveyor system where the motorized pulley is installed. At this point the conveyed material is discharged "wherever" and the belt wraps around and begins its return cycle.

The head pulley is at the discharge so that the conveyed material is "pulled" through the system vs. having the tail pulley motorized which would be forcing the system to "push" the belt containing the conveyed material.

Two main different combustion regime: diffusion flame is generated when fuel and oxidizer are provided separately and then mixes with each other and reacts in the mixing zone; while premixed flame is generated when fuel and oxidizer are totally mixed and goes to burning after ignition. The main difference is that premixed flame forms a propagating wave front and diffusion flame tends to be stable. Due to that, premixed flame is more sensitive to acoustics, i.e. flashback and blow-off. On the other hand, the mixing is a key factor for diffusion flame. If mixing is not enough, we suffers with high soot and unburnt hydrocarbon emissions. The flame thickness is different a lot, and premixed flame is much thinner. In terms of environment issue, NOx emission is relatively higher in premixed flame than in diffusion flame due to higher flame temperature. In application, safety is a main concern for premixed flame, so that stabilization is always applied in practice. Diffusion flame is more widely applied, especially on aircraft and power station.

in details

You just take an example as rect section with A=17.6*10=176 mm2 and your I section too has same area of 176 mm2.

Calculate moment of inertia of rectangular section I = bd3/12 = 1466.66 mm4

For I section, Width of both flange = 20 mm, thickness of both flange = 4 mm, web length=16 mm, web thickness = 4mm. This gives you the same area A=176 mm2

Now Calculate moment of inertia of I section I =8938 mm4 (Do it from any online converter or by calculations)

Now compare both Moment of inertia, I section has approx six times better moment of inertia as compared to rectangular section. Put up this moment of inertia values in deflection and bending stress equations and try to compare both. This is because the material is put up in such a way to get maximum moment of inertia with minimum material and min weight. Finally this is the reason why I beams are preferable over rectangular beams

Once Put up this moment of inertia values in deflection and bending stress equations and try to compare both. you will get it in sec

According to BS 970 080M40, EN08 normalised steel is a medium strength steel. Suitable for stressed pins, shafts studs, keys etc. Available as rolled or normalised. Supplied as square bar, or round bar or flat.

It is not.. A globe , needle , ball valve are used for throttling

For expansion either a shock absorber , diaphragm tank or air chamber are used to allow for expansion

Circulating fluidised bed combustion

Various metals as CI is sometimes call pig iron

the one that had smaller least count wil be more accurate