why vaccume required in turbine?

Answer Posted / 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



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Explain the importance of thermodynamics laws in mechanical engineering?

643


what is the different between mechanical starter vs electrical starter? Solid stage starter? Soft starter?

1882


Explain the formula of heat loss in a pipe.

647


how to minibar working

930


Why the ship cranes are not having counter weights irrespect of industrial & civil construction cranes are having counter weights.

1644






What is blower? Partlist of blower.

1382


diffuser increases pressure but in turbine pressure is decreasing when steam passing through casing?

2975


Question for mech.engineer in dmrc

1432


How would you increase the volume efficiency of centrifugal pump?

1504


What for admirality brass used ?

658


How does a modern submarine move?

628


general diesel engine we are using 15w 40 oil unfortunatley our oiller mis used the oil hudralic oil refilled when he doing the service which kind proplem coming in future?

1781


Wasco Interview 1-the type of transducer that convert mechanical movement into a voltage 2-pump 2500 psi and 100 MG select it 3-modes of heat transfer 4-the difference bet PSIA and PSIG 5-the function of relief valve and no return valve (check valve ) 6-types of bearing general catogires 7-function of bearing 8-compressor surge 9-pump cavitation 10-define critical speed 11-compression ratio decease volumetric ratio ........... 12-using inter-cooling in multi stage compressors to ....... 13-using cascade system in refrigerator function ? 14-define performance and efficiency .

1635


I am doing 3rd year mechanical engineering. I want to place in good mechanical engineering core company. So please guide me how to prepare for interviews, and what can i do for placed in good company?

1419


How can we calculate the per hour productivity of a hydraulic rock breaker,for excavator..

1149