Robsalv, JStephen
Thank you for your kind support.
This is no case study, this is for real. I work in Brazil doing tank design for people who knows nothing about tanks where only a few professionals know something. This is why I am in this forum, because there's nothing related to storage...
Dear forum fellows,
A client ask me to design a UAN32 Storage Tank for his facilities. I'm a tank designer, but, as I never did one before, I had to do some research. I found out that UAN32 is extremely corrosive. Although the use of corrosion inhibitors reduces the problem, tank liner and...
Casflo,
Unfortunately I could not pick up the right value of expansion factor Y as dp/p1 (=22/22.5=0.97) falls out of the graphic area. Same for the Reynolds Number and discharge coefficient. I think my client doesn't know what is asking, because according to ISO 5167 for orifice plates, in...
Hi casflo, thanks
When I said it's not critical flow, the client said: "Orifice shall be used and calculated as Restriction orifice, not a flow meter"
Using Crane, am I looking to the right calculations?
Dear fellows,
I could use some help involving restriction orifice plate (square-edge) according to RW.Miller calculations.
Datasheet specifies:
gas/vapor
Upstream pressure (pf1) 22bar
Pressure drop (delta p) 20bar
Inlet temperature (Tf1) 40°C
Compressibility factor (Z) 0.93
Specific heat ratio...
Dear group fellows,
As I promissed, I came back and I'd like to share what I found.
First of all, things in Brazil are different and technology is hard to find. Suppliers are in a few number and my options to heat the tank were reduced. I did a checklist, but in the end, only 4 items were...
As I promissed, I'm back to inform that investigations are going on and I received quotation from suppliers of Eletric Trace Heating and Eletric Immersion Flanges (bayonets). The price is the almost the same for the two options. Of course, trace heating requires thermal insulation, the other one...
Dear fellows,
Thank you all for sharing the knowledge here placed. There are some many things to put in the balance. As I noticed, each one has its own solution (heat tracing, steam bayonet heaters, eletric heaters, heating coils). I did not get to the decision yet, but I already contacted...
MJCronin,
Unfortunately, this kind of power is not in my hands. I'm simply a mere mortal.
LittleInch, MJCronin,
Thanks, I got the information about CAPEX or OPEX, and the reply was: low CAPEX, high OPEX (in the first years).
Hi LittleInch,
Nice to talk with you. You're right: there are many variables to consider. That's why I'm here, as in Brazil the information is very hard to find. Wish I could "google" in portuguese and get what I'm looking for. Lucky me I did some english courses.
Here is what I found about...
Dear fellows,
I have a 19m DIA x 21m bunker fuel tank (HFO) and I need to heat it, but there are so many solutions that I myself got confused. Doing my research I found "suction heater" to be the most elegant choice, but is it economical worthy? Anyone has any suggestions or advice? What is the...
Gentlemen, I would like to appeal to your experience.
Which arrangement is best choice for the tank heating system?
Arrangement 1:
Heat exchanger (TEMA type BEU) inside the tank,
Water boiler (water from the nearby river) using the same bunker fuel as combustible;
Arrangement 2:
Pipe insert...
Duwe6
Be sure to include a water-draw-off nozzle, or a sump with nozzle to remove settled water.
I'm considering the draw-off sump. Thank you.
MJCronin
- Venting of light hydrocarbons
I suppose you're talking about a circulation vent? What about an IFR along with a cone structure supported...
Dear Community,
I would like to ask a question about Emergency Relief Valve & Pressure/Vacuum Relief.
Following API-650 appendix F, I calculated a max design pressure of 9,6 kPa. I suppose I’ll have to limit our PV at 9,6 kPa or less.
But, I do not want to use anchorage, and if I use this...
