7 replies to this topic

[sabcoolin]

Hello,

I am suppose to calculate heat loss from an insulated storage tank, so i was looking if someone has an excel template that i can use.

Thank you

[Robert Montoya]

Dear sancoolin; you have two way for calculate the loss heat from isolated or refrigerated tank.

First way; rigorous using "Predict Storage Tank Heat Transfer Precisely By J.Kumana and S.Kothar" In the attachment file you can find the excel calculations (was made by Montemayor I think) and the article. (quite accurately)

Second way using short equations (is in Spanish I am sorry) the accuracy is more or less 5%, in the attachment you can find the article.


Finally for refrigerated or isolated tanks loss heat should be given by vendor.

Attached Files

•  Storage Tank Heat Loss Calcs - Rev.1 31.12.2010 (1).xls   94KB   1768 downloads
•  Estimación de la pérdida de calor en tanques.pdf   216.91KB   804 downloads

Edited by roberdani12, 02 July 2012 - 12:13 PM.

[sabcoolin]

Thank youfor your reply.

[kkala]

Thanks for the heat loss article for tanks, quite useful. See http://www.cheresou...er-coefficient , post No 4, A2, indicating that need.

Edited by kkala, 26 April 2012 - 11:36 AM.

[Robert Montoya]

Dear all, here in the attachment there is another reference "Guide to Storage Tanks and Equipment" this is a good guide.

Attached Files

•  Guide to Storage Tanks and Equipment.pdf   3.4MB   1147 downloads

[eduardoeduardo]

Dear french

 

In cells c-273, 273, 274 I find mistakes as

 

1.- Stephan Boltmann cte is in englis unitis instead of SI units

2.- Temperatures not need to add 460 if those are expressed in ºk

 

 

 

 

 

 

 

(6,67/10^8)*C52*((C262^4)-(C258^4))/(C262-C258)=5,548 w/m2ºK

 

(6,67/10^8)*C52*((C262^4)-(C258^4))/(C262-C258)=5,548

 

 

[Ming Hooi]

I have used this spreadsheet to estimate the steam requirement for a molten sulphur storage tank project, with great satisfaction ! Thanks heaps !!!

[Giuseppe Lombardi]

I suggest a great text. Transpor Phenomena by Bird, which treats a lot of this kind of examples.

Giuseppe