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#13196 - 09/16/07 11:31 PM Square Tank Design
amit-frames Offline
Member

Registered: 07/30/07
Posts: 4
Loc: pune,maharashtra,India.
Does anybody know how to do square tank design?
I am using Roark and Young for thickness calculations,
but how should I determine the size of Stiffners to be used?

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#27839 - 06/01/09 02:16 AM Re: Square Tank Design [Re: amit-frames]
azmibulut Offline
Member

Registered: 06/01/09
Posts: 2
Loc: YALOVA TURKEY
you can use the following formula for determining stiffening frame size ;


Z = (0,062 x 0,036 x G x H3 x l) / S

G : specific gravity of liquid
H : height of tanks, inches
l : difference between stiffenings, inches
S : stress value of plate, psi
Z : section modulus, in3

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#27849 - 06/01/09 08:10 AM Re: Square Tank Design [Re: azmibulut]
Richard Ay Offline
Member

Registered: 12/13/99
Posts: 6226
Loc: Houston, Texas, USA
You should review ASME Section VIII on "rectangular vessel" design. API-650 is for cylindrical bottom founded tanks only.
_________________________
Regards,
Richard Ay - Consultant

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#27873 - 06/02/09 12:38 PM Re: Square Tank Design [Re: Richard Ay]
azmibulut Offline
Member

Registered: 06/01/09
Posts: 2
Loc: YALOVA TURKEY

yes Richard, you are right. This design is applicable for ASME.

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#34718 - 05/02/10 10:26 PM Re: Square Tank Design [Re: azmibulut]
Shabeer Offline
Member

Registered: 12/26/07
Posts: 266
Loc: india
hai Richard,

shall i use API-620 for rectangular tank design.

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#34727 - 05/03/10 07:38 AM Re: Square Tank Design [Re: Shabeer]
Richard Ay Offline
Member

Registered: 12/13/99
Posts: 6226
Loc: Houston, Texas, USA
I'm not sure, I haven't studied API-620.
_________________________
Regards,
Richard Ay - Consultant

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#34730 - 05/03/10 07:45 AM Re: Square Tank Design [Re: Shabeer]
Ray_Delaforce Offline
Member

Registered: 01/02/03
Posts: 743
Loc: Houston, TX
Hello Folks

There is a procedure in ASME Section VIII, Division 1 for rectangular tank design. It is available in our PV Elite software as we address ASME in general for pressure vessel analysis. That software is available should you require it.
_________________________
Sincerely,
Ray Delaforce
CADWorx & Analysis Solutions
Hexagon PPM

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#37882 - 09/13/10 08:01 AM Re: Square Tank Design [Re: Ray_Delaforce]
tundeoyinbo Offline
Member

Registered: 09/13/10
Posts: 3
Loc: Lagos, Nigeria
Good Afternoon everyone,

I am currently designing an underground tank to be used as sump tank to receive slugs and condensates from a Pig Line.

Kindly confirm if Pressure Vessel Handbook by Eugene Megysey is adequate for such design. Wouldn't the procedure in ASME Section VIII Division 1 for rectangular tank be an over-design since it is under pressure? In my case I am designing to atmospheric pressure.

Also i need someone who has designed for underground tanks using the standard UL 53!

Thank you
_________________________
Oyinbo Olatunde

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#46683 - 01/10/12 07:42 PM Re: Square Tank Design [Re: amit-frames]
zul Offline
Member

Registered: 07/24/11
Posts: 15
Loc: Malaysia
Dear All,

how to calculate local stress due to nozzle load for rectangular tank.

All know, WRC 107 & 297 only cover for cylindrical & ellipsoidal shape.

Pls help to advise.

regard,

ZUL

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#47028 - 01/28/12 10:57 PM Re: Square Tank Design [Re: amit-frames]
zul Offline
Member

Registered: 07/24/11
Posts: 15
Loc: Malaysia
Dear All,

Pls advise ?

Zul

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#47035 - 01/29/12 10:40 PM Re: Square Tank Design [Re: amit-frames]
Richard Ay Offline
Member

Registered: 12/13/99
Posts: 6226
Loc: Houston, Texas, USA
FEA.
_________________________
Regards,
Richard Ay - Consultant

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#48282 - 04/11/12 07:59 AM Re: Square Tank Design [Re: Richard Ay]
WHMUGHAL Offline
Member

Registered: 04/11/12
Posts: 2
Loc: United Arab Emirates
Hi Richard / Ray ,

In PV Elite ASME Section VIII Div.1 Appendix 13, could be used for double wall rectangular tanks ?

Also provision for additon of Tie-Rod for controling defelction is available in PV Elite ?

Regards,

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#48426 - 04/20/12 05:45 AM Re: Square Tank Design [Re: amit-frames]
gipb4u Offline
Member

Registered: 05/18/09
Posts: 24
Loc: mumbai india
FEA is the right method
_________________________
P08IP708

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#68931 - 05/01/17 04:55 AM Re: Square Tank Design [Re: amit-frames]
Deepak_Sethia Offline
Member

Registered: 10/05/14
Posts: 1
Loc: Dubai, UAE
HI,

Can we use nozzle pro to calculate local stress due to nozzle load for rectangular tank.


Regards,

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#68932 - 05/01/17 07:25 AM Re: Square Tank Design [Re: amit-frames]
Ray_Delaforce Offline
Member

Registered: 01/02/03
Posts: 743
Loc: Houston, TX
Hello amit-frames

The original issue was the design of rectangular vessels, and later stiffeners came into the mix. The answer to that question is still ASME VIII, Division 1 Appendix 13. CodeCalc has the functionality to do that analysis complete with stiffeners. So, that part of the question is really 'put to bed' now.

Next the issue of underground tanks was raised. The problem there is the fact that the pressure profile exerted by the soil is not just one pressure. Appendix 13 can only handle one pressure (external or internal), so the method in CodeCalc has to be used with extreme caution.

The issue of double wall rectangular tanks was raised. The method in ASME Appendix 13 does not address that, following which CodeCalc cannot do it either.

The issue of external loads on Nozzles was discussed. There are two methods available in PV Elite or CodeCalc. That is WRC 107, or the use of the Paulin Research group software NozzlePRO which is available from Intergraph, and it works with PV Elite or as a stand-alone programme.

One final word on the use of the Forum. It is better to concentrate on one issue rather that adding other issues that are not directly related. This is not a strict rule, but it is much easier to concentrated on one subject at a time.
_________________________
Sincerely,
Ray Delaforce
CADWorx & Analysis Solutions
Hexagon PPM

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