Hello, I was hoping some people here could tell me about their careers as pipeline engineers, if they started with a mechanical engineering degree. I don't mean process engineering - I'm considering the paths I can take with my degree (mech eng).
I currently have 3 years experience in mining -...
In AS4041 (Australian Pressure Piping standard) there is a section and clause that I am trying to understand. It is also (I've been told) in the one of the B31 codes. It is 3.10.3 (variations of pressure, mainly point (iii) and onwards).
It reads as follows:
3.10.3 Variations in normal...
Hello,
In the design of a recent pipeline a fellow engineer and I discovered that the largest transient pressures in our pipeline would be caused by a pressure relief valve activating, and an operator shutting off the pipeline while it was activating. We were wondering if this is normally...
Not sure if this is the right forum, but...
We have a mechanical specification for hydraulic machinery that lists all rock breakers must operate at pressures below 180 bar.
I've had a look at a number of rock breakers on the market and pressures far above this (over 300 bar) are common. My...
We're using stainless steel fittings on a pipeline containing emulsion (HFA fluid for coal mining longwall). The 5km pipeline(other than the fittings for isolation points, drain points, etc.) is HDPE. This is all due to a client request.
The line requires pressure reducing stations. These have...
Simple question with a probably not-so-simple answer: How do you generally account for the losses in pipelines caused by air pockets, that (as far as I've been told) can intruduce a restriction in the pipe (by reducing the effective cross sectional area) at the point where they're located?
I have some conflicting information from Vinidex (Aus HDPE pipe manufacturer) on the allowable pressures for their HDPE pipes.
Australian Standard 4130 lists a MAOP (maximum allowable operating pressure) for PE pipes. Doing the calculations from the standard for 35 degrees (celcius) and PN25...
Australian standard AS 1692 "Steel tanks for flammable and
combustible liquids" states -
"2.2.7 Liquid seal
Every fill pipe, suction pipe or dip pipe that enters through the top of the tank and that is likely to be opened to atmosphere at some time during normal filling, shall be provided with...
A grad engineer and I are just getting into piping and pipe supports. There's one issue we don't agree on so far
I believe a pipe elbow at a certain rating (eg200psi) does not require additional supports to relieve the tensile stresses in the pipe. My friend is of the opinion that an...
I'm looking for advice on tank design parameters - basically I've been given a tank and been left with the task of sizing the inlet, outlet, baffle plates, and overflow pipe, and positioning them.
Pipe sizing, baffle plates, the need for a vortex reducer (and its design) - could anyone point me...
Hi,
I've been tasked with designing a suitable setup for a vehicle washbay that draws water from a relatively small (~30kL) tank and pumps it to hoses and water cannons with operating points of 650kPa. The flow rates are ~20L/s for the cannons and ~2.5L/s for the hoses. The pump supplies 21L/s...
Simple question, I'm after a butterfly valve which transmits a signal or can provide some sort of indication when used of whether it's fully closed or not fully closed. Can anyone tell me where I could find one / what I'm after?
I'm after about 3" diameter, I'd like to place them below a water...
We're designing a washbay for vehicle cleaning using fixed water cannons and a pressurized hose reel arrangement.
Companies are able to supply exit velocities their products will achieve but are unable to provide us with details of the stream we can expect at 10m, 20m, etc and how effective it...
