chiller question

[iceman3000]

i have a chiller with a water flow rate of 42 L/s,the water temp in is 12c and the water temp out is 6c,what is the duty in kw??

[nike123]

i have a chiller with a water flow rate of 42 L/s,the water temp in is 12c and the water temp out is 6c,what is the duty in kw??


http://www.fordhamprep.org/gcurran/sho/sho/lessons/lesson210.htm

[iceman3000]

why is it a dumb question again??

[wambat]

i have a chiller with a water flow rate of 42 L/s,the water temp in is 12c and the water temp out is 6c,what is the duty in kw??

I get 42L/s = 554 gal/min (UK) with a ~10.5*F TD
so Q = 554gpm x 500 x10.5/12000 btu/ton = 242 tons or 852 KW

[nike123]

why is it a dumb question again??

No, that is part of my signature and not part of my reply to you!:D

[Pooh]

Iceman
you should be able to do the maths on this one, the only other thing you need is the specific heat of water which should be in KJ/Kg then just multiply it out.

Ian

[frank]

Assuming that it is just water without any glycol, the specific heat of the water would be 4.19kj/kg and the mass would be 1kg/l

With a flow rate of 42kg/s, and a dt (T1 - T2) of 6K, you would get:

Q = mcdt (mass flow x specific heat x temp difference)

Q = 42 x 4.19 x 6

Q = 1055.88kW

[frank]

I've moved this thread to the Air Conditioning section.

Still waiting on the Boss to create a Chiller Section

[GXMPLX]

I've moved this thread to the Air Conditioning section.

Still waiting on the Boss to create a Chiller Section

This only smells like a chiller question! It should go to Fundamentals!

[Pooh]

Frank
stop doing their homework for them please otherwise we will have to send you the certificate.

Ian

[US Iceman]

Uhh Ohh, looks like the teacher caught the student!:D

[frank]

Sh*t!!

Sorry Teach.

Promise I won't do it again :o

Can I go out to play now sir????

P.S.

Did I get 10/10??? :D

[Pooh]

Frank
sorry mate only 9 out of 10, you spelt your name wrong again.

Ian