What are you doing right NOW??? ;)

Pinkpoison · Jul 10, 2015

Skull One said:
Contemplating the best way to simulate air flow over a set of copper or aluminum tubes with fins while simultaneously simulating R410A flowing through the tubes while it is changing state from a either a liquid to gas or gas to liquid.

And no, sadly, I am not joking.

I was doing that yesterday

Skull One · Jul 10, 2015

ardchoille said:
Copper would be best, would it not? Sounds like you're making liquid oxygen or liquid nitrogen.

Actually it's for the evaporator and condenser coils of the AC units we build. Copper is the better material for heat transfer under most conditions but aluminum costs less and also less likely to be stolen. So we have to weigh return on investment when you are talking about as much as a $5K to $8K difference in price for the unit based on the coil material alone.

Skull One · Jul 10, 2015

Poisonivy said:
I was doing that yesterday

Have you figured out how to account for the air bubbles in the tubes? The bubbles tend to make a difference in lowering the transfer rate of energy. And I need to account for that.

Pinkpoison · Jul 11, 2015

Skull One said:
Have you figured out how to account for the air bubbles in the tubes? The bubbles tend to make a difference in lowering the transfer rate of energy. And I need to account for that.

Well I gave it a lot of thought and then thought Oh blow it and went shopping instead

scifan57 · Jul 11, 2015

Listening to Patsy Cline on my iPhone.

scifan57 · Jul 12, 2015

Beginning this weeks episode of my never-ending battle against the Laundry Monster.

J. A. · Jul 12, 2015

scifan57 said:
Beginning this weeks episode of my never-ending battle against the Laundry Monster.

It's like the Lernaean Hydra, isn't it?

scifan57 · Jul 12, 2015

J. A. said:
It's like the Lernaean Hydra, isn't it?

Every time you cut off one head, several more grow to replace it.

Pinkpoison · Jul 13, 2015

Sat up in bed drinking my morning cuppa and hoping it doesn't rain for the antiques fair.

scifan57 · Jul 13, 2015

Poisonivy said:
Sat up in bed drinking my morning cuppa and hoping it doesn't rain for the antiques fair.

I hope you had good weather for the antiques fair.

Pinkpoison · Jul 13, 2015

scifan57 said:
I hope you had good weather for the antiques fair.

Thanks sci, We got about half way round and the rain started, Light at first but heavy after a while, The dealers started to pack up but we saw most of it, I was really enjoying it up to then, It was a nice fair.

scifan57 · Jul 13, 2015

Poisonivy said:
Thanks sci, We got about half way round and the rain started, Light at first but heavy after a while, The dealers started to pack up but we saw most of it, I was really enjoying it up to then, It was a nice fair.

Better luck next time.