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What to do about turbine rotor differential expansion?
my LP turbine differential expansion increase ,when rated gland steam temperature maintain.
How do you lower turbine differential expansion?
by controlling main steam flow
What is expansion turbine?
differential expansion is refer to differential distance between rotor blade and fix blade.rotor expand toward generator and casing expand toward control valve.when temperature increase ,expansion in casing and rotor.so rotor mass is less than casing which rotor expand more than casing.
What is positive differential expansion of steam turbine?
Differential expansion means gap between fixed Blade & rotating blase of a turbine.. When steam enters into the turbine, rotor tends to expand towards generator side & casing tends to expand towards control valve side. If differential expansion increase then there is a possibility of reducing axial gap between rotor & fixed blades. When differential expansion is positive its means rotor expand more than the casing expansion. There is a limit upto +ve 5. If increases than +ve 5 it means we have to check front side tie rods status.
What are the three layers formed during gastrulation and what do they make?
Cell movement (differential expansion)
What is the advantage of bimetal thermometer?
A biometallic thermometer measures temperature. It uses a differential thermal expansion of metals that are bonded together into a strip. Another name for these thermometers is differential thermometer.
What has the author Hugh Raymond Beveridge written?
Hugh Raymond Beveridge has written: 'An expansion problem connected with a system of partial differential equations' -- subject(s): Partial Differential equations
Turbine differential expansion should be positive or negative?
Turbine diff expansion can be positive or negative and depends on the convention used. The usual convention is that positive expansion is rotor expanding faster (hotter) than fixed components. Expansion is dictated by steam flow, gland steam temperatures etc
What happens to the bimetallic strip when the iron is hot?
When the iron is hot, the bimetallic strip will bend towards the iron due to differential expansion of the two metals in the strip. This bending occurs because the metal with higher thermal expansion coefficient will expand more, causing the strip to curve towards that side.
Why would it be easy to crack a glass bottle when filled with water and subjected to a flame?
The temperature contrasts would cause differential expansion of the bottle which, being brittle, would cause the glass to crack.
What has the author P Quittner written?
P. Quittner has written: 'Superlinear parabolic problems' -- subject(s): Differential equations, Elliptic, Differential equations, Parabolic, Differential equations, Partial, Elliptic Differential equations, Parabolic Differential equations, Partial Differential equations
Cause of increase in LP Turbine differential expansion?
1. Low vacuum at high loads 2. High HRH temp 3.High steam flow 4. high gland steam temperature
