Question { Facebook, 54242 }

what is the abrivation of GE- 9FA and 9E gas turbines

Answer

9 = Its third stage / exhaust is 9ft and you will observe
the same for other frames i.e. 7 & 5 etc

E = Model

Question { Lanco, 20603 }

in power plant lube oil system, if oil mist/vapour
eliminator is not running what are all the consequences
occur in system?

Answer

In turbines bearing are sealed either by steam or by air,
and that steam or air has higher pressure than lube oil,
which keep travelling continuously towards lube oil and
then to main oil tank, a mist eliminator / vapor extractors
is installed on the tank to remove the steam / air vapors
in order to maintain the purity of lube oil, otherwise it
will be contaminated and its purity and acidity will be
changed quickly.

Question { 14139 }

which type of shaft is preferred for power transmission,
solid or hollow one?

Answer

In heavy power transmission hollow shaft is used. For
example in case of gas turbine and steam turbine where you
need to transmit thousand of horse powers from turbine to
generator, the hollow shafts are used because of its
stiffness and mass ratio.

Question { Honda, 21887 }

what will happen if petrol is fed to diesel engine and disel
is fed to petrol engine?in any case engine will run or not?

Answer

Both the engines will not work

1) Diesel Engine: Only air is compressed and fuel (diesel)
is injected when air is hot enough to ignite / combust the
fuel, petrol has not got this property but need an spark
which is not a provision of diesel engine therefore diesel
engine will never work on petrol.

2) Petrol Engine: If engine is two stroke it will never
function, but in case of four stroke diesel petrol may
ignite if engine is of higher compression ratio 1/14 or
more even then it will not work properly. Remember in
petrol engine both air and fuel as compressed together,
which will create many complication i.e. timing of
ignition, presence of spark plug. However petrol engine
will not work on diesel.

Question { Wallem, 11662 }

what is the different between gate valve and globe valve?

Answer

Gate valve is non regulator means full close or full open
positions only, while globe valve is regulator.