In API 650 according to item 5.1.5.9 e , the fixed roof tanks require top angle of minimum sizes and this angle is a curb angle that is attached to both shell and roof , now item 5.9.3.1 say that when the angle is located 0.6 m below the top of shell , so we must put angle at the top , so I am...
When our supplier provides the drawing of high pressure and low pressure feedwater heaters , there is a part of shell called skirt , its position is after tubesheet in LP heater and its position is at steam inlet in HP heater , so what is the skirt ? IS it a part of shell ? what is its function...
I need to know if the secondary stresses is different from residual stresses ? , also is the secondary stresses in the pressure vessel important ? AS i know that the secondary stresses comes combined with the primary stresses not alone so can we neglect the secondary stress and if not why ...
I have a heat exchanger of material SA516-70 , I need to know the creep range of this material and other material , where can I find such a data whether in a code or website ?
I was reading in ansi hi standards for pumps and there is a table called pump test acceptable grades , what i understand is that if we have a specific design of a pump say head of 10 bar at rated flow ,, so when the tests are made and due to fluctuations and vibrations , the readings foe example...
I know that centrifugal pumps produces head which has a value equals to the system resistance ,, but what is the case of compressors ? do they have curves like pumps ? Does their head or pressure changes with the system resistance ? How the compressibility factor of gases is involved ?
In heat transfer equations sometimes they use Q=m*Cp*deltaT = m* delta H ,, and sometimes uses Q=U*A*delta T ,, so when to use each equation ? in heat exchangers they use the first equation then the second one so i got confused a little , AT last does the two equations equals each other ?
On the left we have a system with a pump and two branches , a pump produces head of 10 bars and Q of 5 m3/h according to the system requirments. On the left the pressure came uot of the pump 10 bars it drops to reach 9 bars at point 3 then the 9 bars drops in branch 1 to reach 1 bar at its end...
Hey , in the image i uploaded if we have a pump and its pump curve as shown , the pump is a single speed pump so its only one H-Q curve ,,, If our system required flow and head is at point 1 so at what point it will intersect the pump curve and also if our system required flow and head is at...
We have a system with a centrifugal pump with only one speed which means one H-Q curve . Now the system flow rate needs changes in 3 modes . I=mode 1 it needs Q=10 m3/h and H= 3 bars , mode 2 it needs Q=15 m3/h and H= 3.2 bars , mode 3 it needs Q = 20m3/h and Q=3.4 bars .. WE will install a...
