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Author Topic: Evaporation in very hot climates.  (Read 3802 times)

ptb_ptb

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Evaporation in very hot climates.
« on: July 31, 2012, 05:50:37 am »

This is what the wiki says:

Quote
Evaporation occurs when water or magma is at a depth of 1/7. Simply having 2/7 standing water is enough to prevent evaporation.  ...

Murky pools are an exception. In hot or scorching environments a murky pool can evaporate even when it is completely full.

It doesn't seem to be accurate.  I've tested a dug (not constructed) pool of water in a scorching climate embark and it evaporates pretty quickly even if initially filled to 7/7.
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acetech09

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Re: Evaporation in very hot climates.
« Reply #1 on: July 31, 2012, 05:53:50 am »

There are two different kinds of 'evaporation' in this game. The 'evaporation' that happens with 1/7 liquids in any temperature is hardcoded, probably to simulate, to some extent, ground absorption as well as evaporation.

Scorching climates actually boil water sometimes due to the heat, and that's probably why your dug pools are going away quickly.
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ptb_ptb

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Re: Evaporation in very hot climates.
« Reply #2 on: July 31, 2012, 05:55:25 am »

Scorching climates actually boil water sometimes due to the heat, and that's probably why your dug pools are going away quickly.

Ouch. Surface temperatures in dwarf world can reach 100 deg Celsius?  Incidentally building a roof over the pool stopped the water disappearing.
« Last Edit: July 31, 2012, 06:05:22 am by ptb_ptb »
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Valtam

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Re: Evaporation in very hot climates.
« Reply #3 on: July 31, 2012, 06:05:34 am »

They can go farther up and down from our normal temperatures (yes, there's even something below our current cero degree), so if the wiki says that scorching climates can go anywhere up from 10078 šU, expect things to get hot around 10180 šU, water boiling point.

Sorry for the pun.

In any case, try to do your dug pool underground.
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Loud Whispers

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Re: Evaporation in very hot climates.
« Reply #4 on: July 31, 2012, 06:22:55 am »

Scorching climates actually boil water sometimes due to the heat, and that's probably why your dug pools are going away quickly.

Ouch. Surface temperatures in dwarf world can reach 100 deg Celsius?  Incidentally building a roof over the pool stopped the water disappearing.

Water evaporates slowly at room temperature. Although to answer your question... It can get hot. Very hot. Hot enough to vaporize Dwarves in the extreme.

ptb_ptb

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Re: Evaporation in very hot climates.
« Reply #5 on: July 31, 2012, 06:41:59 am »

Scorching climates actually boil water sometimes due to the heat, and that's probably why your dug pools are going away quickly.
Ouch. Surface temperatures in dwarf world can reach 100 deg Celsius?
Water evaporates slowly at room temperature.
Er, evaporate <> boil. (Apparently so in real life and Dwarf Fortress). That being the point of the earlier posts.
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Loud Whispers

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Re: Evaporation in very hot climates.
« Reply #6 on: July 31, 2012, 06:50:15 am »

Scorching climates actually boil water sometimes due to the heat, and that's probably why your dug pools are going away quickly.
Ouch. Surface temperatures in dwarf world can reach 100 deg Celsius?
Water evaporates slowly at room temperature.
Er, evaporate <> boil. (Apparently so in real life and Dwarf Fortress). That being the point of the earlier posts.
I think vaporizing counts too :P

Quietust

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Re: Evaporation in very hot climates.
« Reply #7 on: July 31, 2012, 10:59:35 am »

Water isn't boiling away in scorching environments - it's just rapidly evaporating via a mechanism distinct from that which causes 1/7 liquids to dry up. It can also happen in non-scorching environments during "dry seasons" when the grass also starts to turn yellow.
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ptb_ptb

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Re: Evaporation in very hot climates.
« Reply #8 on: July 31, 2012, 11:54:48 am »

Water isn't boiling away in scorching environments - it's just rapidly evaporating via a mechanism distinct from that which causes 1/7 liquids to dry up.

OK. So it looks like the wiki needs editing again.  ^ ^;
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Quietust

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Re: Evaporation in very hot climates.
« Reply #9 on: July 31, 2012, 12:13:40 pm »

Technically speaking, it is possible for standing water to actually boil away, but in that case it will actually turn into steam, and anything hot enough to do that will probably also set the grass on fire...
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Kilroy the Grand

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Re: Evaporation in very hot climates.
« Reply #10 on: July 31, 2012, 02:01:47 pm »

I remember the days when if it rained in a scorching biome everything outside would be cooked.

I also like the fact that things can be colder than absolute zero, although they often dont do much.
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