If we have two probes on a turbine on one bearing and they are 90 degree apart now if the shaft is rotating in a pure ideal circular motion the phase angle between two readings is 90 degree , but if the shaft moves in elliptical motion or any other motion does the phase angle remains 90 or...
I have a start up curve of steam turbine , from load 0 mega to 120 megawatt , the pressure at the inlet is constant so in this case the flow rate only is the factor that increases the load , then after 120 mw the pressure increases until the load reaches maximum ,
so 1. what affects the...
The graph of the control valve of the turbine has opening vs flow rate , so what if we increase flow rate from boiler at a fixed opening of valve will the pressure upstream valve increase ? Any other things will occur ?
"I know that each measuring sensor on turbine reads different frequencies and combine them to one frequency ." this means that on each bearing I have 2 probes in different axis , each measures a reading and then combine the readings of two into one graph which is time vs displacement , as I saw...
The experts came and they did there analysis and I was watching the curves on their computer and they were focusing and I didn't want to disturb them of such a question as all I need to know is what they represent not their physical meaning , The image is not clear as it is from the net and the...
There was a problem with a steam turbine and some vibration expert study it using a software calling vibro sight . A graph is called trend analysis and it is between time on x- axis and displacement on y-axis. The displacement starts from 0 , 10 , 20 , 30 , 40 , 50 and 60 and at each...
we are measuring vibrations on steam turbine on bearing 1 and bearing 3 . we found that amplitude of bearing 1 is slightly changing but at a same phase angle which is 262 degree . Also the amplitude of bearing 2 is slightly changing but at same phase angle which is 162 degree . I understand...
In API 650 standard , item 5.2.1 C) , the design internal pressure shall not exceed 18 kpa , and since atmospheric pressure is 100 kpa so does this statement means that internal pressure shall not exceed 118 kpa ? also the external pressure shall not be less than 100.25 kpa ?
In condenser of power plants , the vacuum is created due to condensation , now if temperature change in the condenser , the pressure will change to be the saturation pressure at the new temperature , so as I understand the temperature controls the pressure in the condenser not vice versa is that...
In condenser of power plants , the vacuum is created due to condensation , now if temperature change in the condenser , the pressure will change to be the saturation pressure at the new temperature , so as I understand the temperature controls the pressure in the condenser not vice versa is that...
we have a control valve at which water enters at temperature 140 c and pressure 10 bars , after the control valve causes pressure drop flashing occurs in a pipe that is 2 meters long , the pipe material is of class C3D (carbon steel)of 100 mm so do we leave the pipe as it is short or upgrade the...
