2 replies to this topic

[Nagarajan K]

Dear All,

 

As per API 2000.to calculate normal venting there to method Using latitude and all on pg.6 of API 2000 6th Edition.

 

Method-1

Incase of Thermal Out breating

Say for tank Cpacity 30000 m3,Non-Insulated,lattitude < 42 ,(Factor=0.32).

 

i get value of 3424 Nm3/hr.

 

Method-2

But buy using another direct method given in Annexure A,with Flash point<37 nad B.P <149 Deg C.

 

i get value of 2495 Nm3/hr.

 

Why so difference, is it beacuse Method -2 considered B.P and flash point  or something else.?

 

Also Which will correct answer?

 

Another Case

 

Also i want to calculate same for 90000 m3 tank?

 

Method-2 can't be used or i have to explorate the same.

Also it say for calculation of Capacity more then 30000 m3 refer to body of Internation Standard.

 

So shall i use Method-1 ?

 

Pls Help.

 

Regards,

 

NK

[breizh]

Hi,

 

If I'm not mistaken using the search engine in this forum you should find a excel sheet issued by Ankur to support your calculation.

 

Hope this helps

 

Breizh

Edited by breizh, 21 March 2014 - 12:21 AM.

[Nagarajan K]

Hii Breizh,

 

I founded the link.shall get on that.Thanks

 

NK