Hi all,
I have a question about my boiler and the inlet water.
I have no background about the heat transfer and I'm glad if someone
can help me.
Under normal condition, the mixture of 270cc of 100 degrees centigrade
water and 30cc of 0 degree water become 90 degrees in only few seconds
by convection, right?
If the 30cc water is surrounded by a copper tube with 5mm internal
diameter and 6mm external diameter. Lowering of the temperature will
be slower without covection. How long will it takes to reach the
steady state approximately?
How about a stainless steel tube? The heat conditivity of steel is
only 20 something, so the process is much slower. How is the
temperature change in 25sec?
Rough estimation is very useful to me.
Thank you. :)
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