Can someone explain something to me:
I believe when throttling h1=h2.
When calculating enthalpy drop across a FIXED converging nozzle then kinetic energy is caluclated using the following formula:
h1-h2 = v2^2/2 - v1^2/2
If the nozzle is converging then there will be an increase in kinetic...
Can somebody aid my understanding:
I am re-studying thermodynamics at the moment 6 years on from when I last studied it and could do with some clarification:
If at the inlet to a steam turbine the pressure is at say 150bar and 550 degrees then there will be a respective enthalpy which is a...
I'm looking for some advice:
I am trying to determine the allowable stress in a lifting attachment we have had manufactured. The lifting attachment is a mild steel block that bolts to the component to be lifted with a lug to enable a shackle to be fitted; two of these blocks are then fitted to...
But I am looking for the worst case scenario and surely the two theories should give an answer approximately the same; or as in this case I haven't got two exactly comparable formulas; so as detailed below I would still expect the beam theory stress to be the most severe case?
Thanks for your responses. I also share the same copy.
There is one other thing that I can't get my head around:
I have treated this as a simply supported beam and calulated the stress at the centre with a point load as shown below and get 227N/mm2; this to me would be a more severe condition...
Can somebody provide some clarification:
I am calculating the stress in a plate with the following dimensions:
41" long by 30" wide and the plate is 3/8" thick. The plate is simply supported along the 41" length sides, with the short lengths free. I have calculated the stress using beam theory...