Hi,
Trying to make sure I'm not doing something really dumb. Working with pipe support guys to see how a new piping arrangement effects an existing pressure vessel nozzle. Nozzle is on a cylindrical shell, perpendicular to the shell.
Looking to calculate the vessel spring constant (flexibility)...
Hi,
I'm looking to calculate the amount of 14% NaOCl solution to dose a water flow rate of 2000 m3/hr and leave 1 mg/l of residual Chlorine.
I assumed it was a simple calc, 1 mg/l = 1 ppm, so 2 litres needed an hour. At 14% that 2/.14 = 14.3 l/hr, was my thought.
However a colleague told...
Hello,
I've just been working on a project using a Voith Vorecon variable speed gearbox. An interesting piece of kit but with some problems, cost being one!
Does anyone know of available alternatives to this technology, for high speed (12,000 rpm output) and high power (2MW+).
Thanks
Hello all.
Background - Am purchasing a new 4 stage (single shaft) GT driven centrifugal compressor, approx 17 MW shared between the 4 stages. We have a number of side streams coming in an out, result the majority of the work is done by the 3rd stage, and 3rd stage discharge pressure sets the...
Hello,
We've got a 2 stage natural gas compressor driven by a speed increasing gearbox, powered by a Rolls Royce Avon 2648 GT. On the coupling between the GT and gearbox is a torque meter. The coupling is being replaced as part of an upgrade and I want to make sure the new coupling is designed...
Hello,
If I have a compressor with known speed and gas power required, can I simply use those two parameters to calculate the torque required. I.e. Torque = power/angular velocity.
Can I further use the fan laws to calculate the power and therefore the torque at lower speeds which would give me...
Hello,
Not sure this is the correct forum for this, if not let me know if there is a more appropriate one.
Am working on a offshore platform where we are having serious power turbine reliability problems (on gas/diesel dual fuel machines) traced to dirty diesel.
The diesel piping is around 2m3...
Hello,
On an offshore oil platform we have an Aero derivative gas turbines with a diesel back-up supply. With the GT vendors scope is a high pressure gear pump which is regulated using a spill back valve. The platform diesel system is circulated by a centrif pump. Manufacturer’s data on the...
I have a 4.5MW 11kV 3ph 50HZ squirrel cage electric motor driving a gas compressor on an offshore platform. If the onboard GT is down the compressor will be run from a sub sea cable, I am told we cannot start the motor with the SS cable because the starting current is too high. Our...
