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# STEAM BLOWING

## STEAM BLOWING

(OP)
dear all,

i am working in chemical cleaning company and i am going to move steam blowing dept so i have some clarification in regarding of steam blowing
how to calculate the CFR value
here consider as only i have pressure and temp value during the blowing
pressure (ksc)= 18
temp(deg cel) =420
so how can calculate CFR

### RE: STEAM BLOWING

There are several websites (including this one) out there that provide a lot of information on this very topic.

I typed "Steam blow calculation" into Google and found a lot of good information. I suggest you review that and if you have specific questions.

### RE: STEAM BLOWING

Use GOOGLE to search for "steam blowing boiler CFR" .... then look at the third and fourth search results

Isn't it more difficult to post a question on the "eng-tips forum" than it is to use GOOGLE ???

MJCronin
Sr. Process Engineer

### RE: STEAM BLOWING

Dear velkoki

CFR value is one of Fluid Dynamic force, please refer to following
the example calculation.
Ma at MCR 400,000 Kgf/hr
Mb at Blowing out 450,000 Kgf/hr
Va at MCR 0.2346 m^3/kgf
Vb at Blowing out 0.2346 m^3/kgf
CFR @ Mass Flow =(Mb/Ma)^2*(Vb/Va)=1.27

Generally, CFR value have to be greater than 1.1~1.2

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