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Hello there! Greetings for the day! I have been thinking for a while about this and hence putting it before you for my better understanding. Refer Annex-E (Seismic Design of Storage Tanks): What is the meaning of "The Design level Peak Ground acceleration parameter (Sp)and what is the unit of...

Hello there! Greetings for the day! I have been thinking for a while about this and hence putting it before you for my better understanding. Refer Annex-E (Seismic Design of Storage Tanks): What is the meaning of "The Design level Peak Ground acceleration parameter (Sp)and what is the unit of...

Thank you all for your valuable responses. what other conditions that i will have to take care if i select nozzle on head? The selection of nozzle on ellipsoidal head is due to space constrain. Yes it is a TEMA BEM exchanger. rgrds

What problems shall i face if i design an exchanger with a nozzle of 32" mounted on ellipsoidal head of 60"? shell side pressure (cooling water) =10kg/cm2. channel side pressure (CO2) =3.5 kg/cm2. MOC= SS. Degign temp= 65 degree. regrds

What is the Equivalent material for SA 537 Cl.1 in PD 5500 design code?

For pipe size of 12" and more you can use plate material for nozzles. That's the break even point considering economics

I was expecting this. Thank you.

it is a vertical tank ofcourse. apologies. design pressure- atmospheric pressure. material- 304L

Dear MJCronin greetings!! I am sorry for not mentioning details as i thought people working in HC industry would be aware of the process parameters. Anyways, its never too late to learn. Ammonium Nitrate Tank is used to store AN in molten condition. The Tank has atmospheric design pressure and...

Please help me with the design code applicable for AN Melt tank. is it API 650? rgrds

thank you everybody

okay. So should i consider providing only secondary Wind Girder in Cone roof tanks? And what about Internal Floating Roof Vertical Tanks (IFRVT)?

API 650 provides loacation of Secondary wind girder not primary wind girders. It is calculated based on transposed height. That is documented.Primary wind girder can be located near the top shell course but do we have any range? i want to alter the location of PWG because of change in fire...

Somebody please explain how to select the location of a primary wind girder. regards

Hi there! Greetings.. I am designing a tank for worst seismic zone and having Dia=20m & Ht.= 18m (liquid ht=17.5). Through the calculation , i am getting the Anchorage ration, J= 3.8 and therefore Anchor bolt size is coming out to M56 (36Nos.). The requirement is quite high and i am not sure...

Dear fellows! Greetings! please help me out the problem i am facing now.My quesry is about Equation E-4.6.1-1 of API 650, 2013. it says '...However, Ai>= 0.007and for S1> 0.6...Ai> 0.5S1.(I/Rwi)= 0.625Sp(I/Rwi)" Here, please be noted that i am getting S1 value which is greater than 0.6 and Ai...

I have a problem while designing a tank for Seismic Analysis as per API 650, 2013. The tank is located in India hence the applicable code for Seismic is IS-1893 & Zone given is V. For zone V the value of z is 0.36. My concern is how to calculate the values of Ai & Ac, where Ai is Impulsive...