why vaccume required in turbine?
Answers were Sorted based on User's Feedback
Answer / ghetiya punit
to increase the utilisation
of heat in turbine, there was
increase in pressure
different, so to increase the
efficiency of turbine,vaccume
is created in exhaust steam
by condensor.
Is This Answer Correct ? | 47 Yes | 5 No |
Answer / k dineahtej
Boiler steam has to enter with high temperature in to
turbine so that maximum utilization of heat and coverted to
work.
Is This Answer Correct ? | 15 Yes | 4 No |
Answer / sumit mandlik
to maintain a proper pressure intensity in the turbine by
which we can convert the maximum energy of steam into useful
work.
Is This Answer Correct ? | 13 Yes | 4 No |
Answer / kishore338
vaccum is required for free expansion of steam so that work
done of turbine is more
Is This Answer Correct ? | 7 Yes | 0 No |
Answer / vitthalrao
vaccuum is maintained at the end of the turbine i.e. at the entry of the condensor.by doing so, the work output of the turbine increases
Is This Answer Correct ? | 5 Yes | 1 No |
Answer / durga
the pressure head is negative when vacuum is maintained at outlet of turbine which increases the operation head of turbine.Due to this effectiveness of turbine increase.
By the use of bernouli's equation it will be clear.
Is This Answer Correct ? | 3 Yes | 1 No |
Low pressure exhaust steam can't be feed to boiler in steam form , after condensing it can be easily feed to boiler by pumps,
Is This Answer Correct ? | 2 Yes | 0 No |
The last stage absolute temp. of steam will be near to
vacuum pressure. To maintain the dryness fraction of steam
in last stage vacuum required in the down stream of steam
flow. so, vacuum need in condenser.(P1V1/T1=P2V2/T2.)in
condenser there is no temp. drop. so P1V1=P2V2. the volume
of condenser is more than last stage area. so, pr. will be
less than last stage pr.
Is This Answer Correct ? | 2 Yes | 0 No |
Answer / devanesan
By maintaining vacuume in turbine the efficiency of the
turbine will increase by making making maximum heat utilization
also reduce external stress in the rotor by free steam flow to
the condenser.
(for example without vacuum the barring gear speed
will less than the without vacuum speed. due to the
atmosphere pressure some external stress acting on the
rotor.)
Is This Answer Correct ? | 4 Yes | 3 No |
Answer / sourabh yadav
due to vaccum the tep. decreases as a result of which minimum friction is produced due to which there is less heating effect as a consequent we get good work output from the turbine
Is This Answer Correct ? | 2 Yes | 2 No |
What is the purpose of a setting tank?
give the sample format of boq plumbing materials
hi every one, i want to make a coal grinder to mil 3 or 4 tons of coal dust per hour . if you guys help me with photos or some tecnical drawings that would be very kind of you.
wat is the need to run a machine without feed???
State newton's three laws of motion.
Which post you can display your talent without have problem?
what are the different types of screws?
friction force depend upon contact area or not.if depen how
What is the most economical spacing of buttress ?
9 balls are there one of them is of higher wt and remaining all are of same. given is one weighing scale and you can use it two times. How will you find the heavy ball in two trials only.
9 Answers Reliance, TCS, Whirlpool,
Who all falls under the Perview of Excise Duty, we mean who has to pay the Excise Duty, eg: does all mfrs have to pay ED or who has high turnover they should only pay ED, if yes that what is the Turnover limit?
WHY ISOMETRIC VIEW LOOK LIKE 3D?