Hi all,
I have a doubt if we can use a nozzle neck made from plate for a new nozzle in API 650 tank existing. It will be the first time that we do it to use a plate for a new nozzle according to API 650. I hope someone can help me.
Thanks in advance,
Dear all,
I have a question regarding hot tap procedure in an existing tank. We have to include a new nozzle in an existing tank using hot tap system (according to API 653 and 2201), and i would like to know if i can use a regular or low type nozzle. It's important because the elevation of the...
Hi all,
I have to design a new flare ko drum, but i don't know all the considerations that i have to take into account. The temperature conditions can change in few seconds form 20 to 300 Celsius degrees.
Do i need to calculate the life cyclic according asme VIIi div2¿
Thanks in advance.
Dear all,
I have to design a bladder water hammer for a refinery. We have to achieve to avoid the water hammer between the buque and the storages tanks of the refinery.
I have a pressure design of 19 bar but with the water hammer we can increase the pressure until 22 bar. My question is that...
Dear all,
I have a question about the piping stress of the pipes of a new tank.
The desing of the tank is according API650 11TH AD3, with the stress of the pipes we have found out the local stress of the tank nozzles, but the displacements of the pipes are lower that table E-8.
I understand...
Dear all,
I have a question about the calculation of the backing strip. TEMA indicates that the equation in order to calculate the thickness of the backing device is: type A T=SQRT(WHY/BS) A and for type B T=SQRT(2WHY/BS). My case is configuration Type B according TEMA.
The question is that...
Hi all,
I have to check an existing heat exchanger type AES with the configuration type D of split ring. I know that TEMA indicates two equations for shear and bending. I would like to know when it's usefull this kind of split ring and how calculate the value of W.
Thanks in advance.
Hi all,
I have to design a new API tank, and i'm not sure which is the suitable material for my service. My service conditions are:
Product: Crude
Pressure: Atm
MIN / Max temp: 0 / 93ºC
I have seen that in other projects our client they have used the material A573 Gr70, but in this case they...
Hi all,
I have to attach a new fitting in a existing tank. The fitting type is a coupling 1" 3000#.
The thickness of the shell is greater than 10 mm, so i'm not sure if i can weld the new fitting according the type b of figure 5-8 from API 650. In this sketch, API indicated a nozzle with...
Hi all,
I'm doing the design of a floating head exchanger with microprotol.
I have a problem because the software indicate the following warning 'Tubesheet Loading conditions T0 [test condition] : longitudinal membrane stress in the tubes exceeded'.
What can i do in order to solve the...
Hi all,
I have to include a fired in a fired heater bottom. For this, i have to do several modifications in the bottom. One is to cut and modify the bottom beams, because the new burner will be installed in the middle of the fired heater.
someone has experience about this???
Thanks,
Hi,
I need information about lateral agitators for tanks. I don't know when it's useful to install a static agitator or when it's better install a swivel system +-30º.
Can anyone help me??? If anyone have information about that, please share it.
Thanks for all,
Hi all,
I have a piping system with a pipe of NPS 32". The specification of the pipe is API 5L (thk 8.7 mm) and i have a corrosion of 1.5 mm.
When i try to do the calculations according WRC 107, i have a problem because my software (microprotol) say me that the ratio d/t is higher than 100...
Hi all,
I have to design several heat exchangers for heating vacuum residue, but i don't have information about the corrosion of this product versus temperature.
Could anyone advice where i can find out this information??
If anyone have information, please share it.
Thanks,
Hi all,
I would like to know the correct way in order to calculate the dead load. The definition of this term in API 650 is not clear for me.
Now i'm doing a new spreadsheet for calculation of tank according api 650, if anyone can send me examples of calculation, it would be very useful for...
Hi all,
I never have designed an external floating roof, but now i0m working in a project with this kind of equipment.
I have a lot of questions about the topic. Can anyone give a guideline in order to start???
How many pontoons have an external floating rood??
Thanks,
Hello,
I have a commodity with a concentration of 0,5% of H2S04 and a temperature of 200ºC, and, I don't know if this concentration is very acid.
Someone can help me??
Thanks,
