5 replies to this topic

[Sudden Death]

hi i am designning a condenser wherein subcooling can also be done
i have done condensation part
but i dont know what is to be done in subcooling part
can u just tell what is to be done

the entire condensation i have followed it from richardson and Coulson Volume 6
i have also refered D.q. kern but got really messed up with all the terms in D,q ,kern

if possible can anyone just send me the entire design procedure including subcooling

[Art Montemayor]

Sudden:

What kind of "design" do you mean - Process of Mechanical?

I have to presume you mean Process design, since this is a Chem Eng Forum. If that's the case, then all you have left to do is supply sensible cooling to the condensed liquid - and this is the easiest portion of the process heat transfer design.

To subcool the resulting condensed liquid you supply sensible heat transfer and the applicable equation is:

Q = W Cp (T2 - T1)

where,

Q = total sensible heat transfered out of the liquid, btu/hr;
W = liquid flow rate, lb/hr;
Cp = average Specific Heat of the liquid, Btu/lb-oF;
T2 = saturated liquid temperature as it is condensed, oF;
T1 = sub-cooled liquid product temperature, oF.

I don't know about other respondents, but don't depend on me supplying you with "the entire design procedure including subcooling". That's the perfect way for you NOT to learn how to resolve the problem. I want to help you - not hurt you.

[Sudden Death]

thanks for ur reply
i want all the equation used in the calculation of condenser design

[Art Montemayor]

Sudden:

I notice that you either didn't read my detailed response or you refuse to answer my questions.

Most of what I know about Process Heat Transfer is detailed and explained very well (complete with detailed example problems) in Don Kern's classic book by the same name.

You would be wise to read, study, digest and apply all that you find in that book. That's how you become an engineer - not by having someone giving you all the "right" equations "used in the calculation of condenser design".

If you continue to refuse the advice of professional engineers who have been there and done that, you will surely find that Suddenly you will find yourself flunking out of University.

I hope you take this advice seriously and dedicate yourself to mastering Don Kern's book.

[rocky]

?

[you]

Sudden:

I notice that you either didn't read my detailed response or you refuse to answer my questions.

Most of what I know about Process Heat Transfer is detailed and explained very well (complete with detailed example problems) in Don Kern's classic book by the same name.

You would be wise to read, study, digest and apply all that you find in that book. That's how you become an engineer - not by having someone giving you all the "right" equations "used in the calculation of condenser design".

If you continue to refuse the advice of professional engineers who have been there and done that, you will surely find that Suddenly you will find yourself flunking out of University.

I hope you take this advice seriously and dedicate yourself to mastering Don Kern's book.

My friend 'Art Montemayor' , I hope that all students read your advice and they should say to Thank you because you show them the right way to be a ggod ENGINNER.
Bravo pour vos conseils ( I hope you understand french )