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Is there any way that I can calculate the properties of flow(in a pipe) after choke? Let's assume I have a long horizontal pipe and the flow could be Adiabatic or Isothermal. Because of huge flowrate I have a choke somewhere at the middle of the pipe(and I can calculate that). But what would be...

Hi, I am offering few courses in the oil industries for engineers here in Canada from four years ago. Now, I am planning to offer them in the States(TX)in near future and I want to do the required changes in my presentations. Regarding Units, do I need to get rid of all SI units and put them in...

I want to start to look around to find client for my engineering services(one-man company/consultant). Should I approach energy companies(like Conocophillips, Shell etc)or other engineering companies(like Bechtel, Fluor)? Thanks

Hi, Is there any thing that prevent me from putting my hourly fee for consultation on my website? Thanks for replies

Hi, In our project the acronyms used on P&ID for motor controls are: XGM XSR: run status XCR: start stop command XA: common trouble alarm XA: L/R status I found these acronyms in "instrumentation handbook" but there is no explanation for them. Can anyone please explain them for me? Thanks

I want to launch a course for process engineers (in EPC industry)in the state. Which city is better to start? (I am aware of Huston, what else?) Regards

I am not civil engineer and I don't want to design a trench-sump for an industrial building (Indoor Plant). But I am just wondering if there is a rule of thumb to estimate the number of required sump for such buildings. I have seen very small and very big buildings with only one sump! How do...

There is a discussion with my colleagues: Which one in more reliable: Instrument air (IA) or electricity? The question raised when we were talking about the fail position of a switch valve which actuates by IA (energized by a solenoid). Is there more chance of loosing IA or electricity? Thanks...

I haven't seen much pressure control loops for liquid lines. There are few, and they are mainly related to protect an asset or for safety purposes (very similar to SIS systems). Am I justified to say:" pressure control loops in liquid lines are few and mainly for protection and not for...

How can we decide if a pipe should be U/G or A/G? As far as I know, A/G is the default because is cheaper. But for some specific reasons, it is better to do U/G. One of these reasons could be "protection", like fire water or potable water. Is that correct? Regards

Based on "Double Jeopardy", I can say: "There is no car accident can happen in this village/city/mega city at the same time". Is that correct?!

I know it depends of bunch of things, but is there a thumb rule which says: if your suspended solid is more than xx ppm, it is better to remove it (by bag filter etc.) before sending it through pipeline? Pipeline is on a hill and slurry is in worst case 1% or 10,000 ppm. Thanks

Does anybody have experience in business of offering workshops for engineers that can share? I am not thinking about "edge technology" training, I am thinking about courses to cover gap for freshly graduated engineers. Thanks

What do you do in first ten days of work in a new work place? Things could be related to your phone, your computer, your colleagues etc. Thanks for all your replies

Does anybody have any idea about viscosity of sludge from the bottom of API separator? I know it could be a range because it is a function of couple of parameters. Thanks

Guys, Can you introduce me some articles or books about waste water from each refinery unit (Like VDU, CDU, Alkylation etc.)and preferably with typical water analysis? Thanks

In my last day of work in a company, the Process department manager said "I have a recommendation for you, You need to be more visible". What do I need to do? Thanks for replies

Is dead head acceptable in a multi stage centrifugal blower?(I mean blockage in discharge side) I am familiar with dead head in centrifugal pumps and know it is not good for pump, but I am not sure about blower. We have a blower in intermittent service with fixed flow rate. Thanks for replies

Probably you will notice English is not my mother tongue. I like to know if publishing a technical article in a popular magazine or writing a technical book help us to progress in our career or not. I am asking this because I need to expend lots of my energy on this for success. I need to ask...

Hi, Does self priming mean required NPSH of a pump is zero? Thanks for replies