Maths question

[Narj]

This has bugged me for a while because I was asked if I could work it out and had no idea how.

Imagine you have a "mixer" tank with two ingress pipes with water at different temperatures (eg: 50*C and 38*C), and one outlet pipe.

How do you work out the temperature of the water at the outlet? At the time I was given a diagram and various other information such as the rate of flow from both ingress being the same and maybe the size of the tank.

Really random question but it was quite some time ago and it's been nagging at me for a while now.

Thanks!

 

[Narj]

It would depend on a lot of things, including where in the tank the inlet/outlet pipes are, is the tank mixed properly? Do you assume it has reached equilibrium before going to outlet?

More of a chemical engineering question than a maths one.

Aha, well that makes me feel less stupid. I was made to feel a bit stupid when I said I had no idea apart from taking the average of the two which is obviously wrong.

Assume this:

 _| |___| |__
|            |
|____   _____|
     | |

Ingress at top, egress at bottom.

EDIT: Just saw post above... cheers.