Hacker News new | ask | show | jobs
by ddingus 407 days ago
Thank you. I learned something fundamental from your comment that I did not know prior. Well, maybe I did, but how I think about it makes it harder to reason about.

Whatever, it is easier to see for me now. Lol

Seeing the benefit of the fan in terms of increased heat transfer to everything the air touches is easy. Full stop.

1 comments

You're very welcome!

Heat is a fascinating thing. I can really recommend trying to visualize it and "playing around" with it in your daily life to get a stronger intuition for things. Pay attention to the thermal conductivity of the things around you and how that "feels": aluminum or copper extremely high, other metals high, plastics and woods low, fabrics and foams very low. Notice how evaporating water is very powerful at cooling things down, and how condensing water can warm things up. Notice how a small hot object cools slowly but a larger one can reject the same amount of heat very fast. Inspect the back of your fridge, or the inside of an A/C, and understand what's going on and where the energy is.

Well, your comment is timely. I am part of a project about to embark on some highly specialized thermal simulation.

I will be doing exactly what you suggested to me here.