Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  1. Hurricanes

    Mechanically induced residual stresses passed to a thermal analysis

    Hi, I was hoping someone might be able to point me in the right direction to find resources on how to do a mechanical to thermal analysis in Ansys. Basically I want to yield and permanently deform a steel pipe in the transient mechanical solver, resulting in a solution with residual stress...
  2. Hurricanes

    Tank inlet nozzle location

    Is there any engineering/hydraulic reason for putting the inlet to a tank at its base? A friend works at a processing plant, and the consulting engineers designing a new processing circuit have put the inlet to a tank at its base. Liquid is pumped into the tank, theres a check valve to prevent...
  3. Hurricanes

    Pressure Surge and MAOP

    Hi BigInch, Why am I looking at AS 4041? Because AS 2885.0-2008 Figure 1.1 and AS 2885.1-2012 Figure 4.1 are quite a bit different than those 1997 figures. Figure 4.1 shows the break between pipeline and station piping. And then, section 6.1 of AS 2885.1: Design of station pipework shall comply...
  4. Hurricanes

    Pressure Surge and MAOP

    BigInch, Thanks, for the explanations. Just to be clear, the system is designed to AS2885.1. AS2885.1 splits piping up and defines what is considered part of the pipeline and what is facility or station piping. B31.3 (actually AS4041 is preferred... but software tends not to have Australian...
  5. Hurricanes

    Pressure Surge and MAOP

    Its a AS2885 pipeline, so B31.4 applies generally speaking. But in this case it could be argued that it is 'station piping' and B31.3 should be used. Maybe I am totally on the wrong track, but doesn't the effect of surge on the pipeline depend on the pipe layout? A stiff piping system is...
  6. Hurricanes

    Pressure Surge and MAOP

    We have a pipeline and there is a pressure surge due to fast valve closure. A dynamic hydraulic analysis has been done to determine the magnitude of the resulting pressure surge. So far so good. Now, I always though the next step was to take the pressure surge, put it into pipe stress software...
  7. Hurricanes

    Gender Based Hiring Quotas in Australia

    So... I work for a large-ish consultancy in Australia. Recently they have introduced quotas. 50% of new hires must be female. Also, as there is a lack of female representation in senior positions, preference must be given to a female rather than a male when promotion time comes around. I think...
  8. Hurricanes

    Two Phase Flow Textbooks

    Thanks Mike, I think I will purchase that book. Davefitz, I have done that, but nothing compares to a good textbook that can sit on my shelf and serve as a reference forever more.
  9. Hurricanes

    Two Phase Flow Textbooks

    Hi all, Can anyone recommend a good textbook or books that deal with two phase flow? Steam-condensate is what I am mainly looking for, but any gas-liquid flows are of interest to me. The fluid and thermo texts I have are a bit too basic, only touching on two phase flow without going into any...
  10. Hurricanes

    Residual stresses in roped bends

    Thanks. I note that buckling seems to be the main concern in A402.3.4, and an allowable strain limit may be used - 0.5% as stated in AS2885.1 seems a good limit to use.
  11. Hurricanes

    Residual stresses in roped bends

    We have an above ground oil line made from linepipe. Along the pipelines run there are multiple roped bends. One of the roped bends has a bend radius smaller than the others. When the stress in the pipe due to bending the pipe into place is calculated, it is found to be significant. I am...
  12. Hurricanes

    Charging engineering students more for their education

    I don't really understand the reaction to this. I went to uni in NZ. A Bachelor of Engineering was around three times the cost of a BA. Why? We had labs and software requirements which ate up more cash than what you'd need for a typical BA course. We also did straight engineering. My course...
  13. Hurricanes

    Continue Working or Pursue a Graduate Degree?

    I have to agree with Greg. If you didn't like pressure vessel design, you're not going to enjoy pipe stress analysis. Go for the PhD. If I was in your shoes, my biggest worry would be the subject of my thesis.
  14. Hurricanes

    maintaining objectivism (when all about are losing their's) ...

    Fine. Cairns is hot. Christchurch is cold. You'll get sunburnt far quicker in Chch than Cairns. Why would this be?
  15. Hurricanes

    maintaining objectivism (when all about are losing their's) ...

    The point I am making is that while that piece from 1994 infers UV levels are dropping and the ozone hole is therefore hardly an issue in this regards is poor. Forget about the colour of your skin, go 30 minutes in the summer sun in Christchurch and compare it with 30 minutes in the summer sun...
  16. Hurricanes

    maintaining objectivism (when all about are losing their's) ...

    Um, is that not what that piece from 1994 is saying? "Even so, the bottom line is not CFCs, chlorine, or even ozone levels. From a health and environmental standpoint, the only worry is UV levels. And guess what? The only actual measurements of UV penetrating to the ground show that UV levels...
  17. Hurricanes

    maintaining objectivism (when all about are losing their's) ...

    There's increased UVB levels due to the lack of ozone compared to countries with full ozone coverage.
  18. Hurricanes

    maintaining objectivism (when all about are losing their's) ...

    Ozone hole - try hanging out in the sun in Australia or New Zealand without sunscreen on.
  19. Hurricanes

    Consensus Science

    Interesting piece on a paper here. They believe CFCs not CO2 are the main driver in global warming. http://online.wsj.com/article/PR-CO-20130530-909921.html
  20. Hurricanes

    Pressure as a function of coordinates

    Is there a straight forward way of varying a pressure or force in workbench mechanical such that the pressure/force is described by an equation containing one or two spacial coordinates? I can put in a normal pressure as a function of one of x, y or z, but I want a normal pressure as a function...

Part and Inventory Search

Back
Top