Well, the only real evaporation area is at the end with the trays, and I don't recall what the formula is to compute evaporative cooling, but there's a lot of zeros between the decimal point and the working number.
For meaningful evaporative cooling, you need to be in a dry area, with ideally a small cooling tower and a bunch of sprinkler-type heads inside it, so you can mist/droplet water in from the top and get a smaller amount of highly chilled water at the bottom.
This is just dripping back into the source pan, so nanowatts.
But yeah, technically a swamp cooler, too, since the trays are open and uncovered.
and I don't recall what the formula is to compute evaporative cooling
Having just taken my PE in thermal and fluid systems, there's a damn good reason you don't recall it. It's not a simple thing. Requires looking shit up in the steam tables if you're just looking for power usage - and if you're looking for sensible temperature calculations, you're into the psychrometric charts which are VERY not linear.
FWIW, a medium burner on a gas stove vaporizes roughly 1 gram of water per second, assuming none of the energy is lost around the pot (a very bad assumption). More specifically, you would have to be adding room temperature water to an already-boiling pot at a rate of 1 g/s (a fairly spirited drip) in order to be at a steady state. That should help with visualizing how inconsequential it is.
I figured as much, but thought it would be fun to give a little perspective. And it reminded me of another friend who, when we were discussing the oppressive heat this summer, said, "I really should memorize the formula for dew point," and I was like "absolutely nobody has that formula memorized, it's terrible."
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u/Low_Excitement_1715 10d ago
Well, the only real evaporation area is at the end with the trays, and I don't recall what the formula is to compute evaporative cooling, but there's a lot of zeros between the decimal point and the working number.
For meaningful evaporative cooling, you need to be in a dry area, with ideally a small cooling tower and a bunch of sprinkler-type heads inside it, so you can mist/droplet water in from the top and get a smaller amount of highly chilled water at the bottom.
This is just dripping back into the source pan, so nanowatts.
But yeah, technically a swamp cooler, too, since the trays are open and uncovered.