Re:Ask HN: Do I place the fan so that it blows air inwards o...
by taneq on Monday May 28, 2018 @03:58AM
(#17171180)
If this is because you want to feel cooler, place the fan so it blows cool air inwards onto you. You'll get far more benefit from having air blown on you than you will from just dropping the ambient temperature around you.
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Re:Ask HN: Do I place the fan so that it blows air inwards o...
by strawcomb on Monday May 28, 2018 @05:03AM
(#17171402)
Fans -> cool human via wind-chill [1]
Air conditioning -> cool human by cooling environment
Re:Ask HN: Do I place the fan so that it blows air inwards o...
by cbr on Monday May 28, 2018 @08:19AM
(#17172026)
You can also use fans to cool the environment, trading hot inside air for cooler outside air. For example https://en.wikipedia.org/wiki/Whole-house_fan
Re:Ask HN: Do I place the fan so that it blows air inwards o...
by innocentoldguy on Monday May 28, 2018 @12:35PM
(#17173308)
Whole house fans are great. They cool the house, clear out the 150º air radiating from the attic, and also take a lot less energy than air-conditioners. I use both, but my air-conditioner runs a lot less since I installed the attic fan.
Re:Ask HN: Do I place the fan so that it blows air inwards o...
by taneq on Wednesday May 30, 2018 @01:41AM
(#17185352)
Same. Well, it's an evaporative air conditioning unit but 90% of the time we don't turn on the evap function (which is only really useful on days which are very dry and not too hot) but just run it as a fan in the evenings. Blows all the hot air out of the house and replaces it with cool night air in minutes.
Re:Ask HN: Do I place the fan so that it blows air inwards o...
by amelius on Monday May 28, 2018 @05:25AM
(#17171487)
Better yet: keep yourself wet while using the fan. The evaporation of water molecules cools you down.
Re:Ask HN: Do I place the fan so that it blows air inwards o...
by Sammi on Monday May 28, 2018 @05:44AM
(#17171541)
I've walked around music festivals for days in the sun with a water bottle, and used more water for soaking the hair on my head than for drinking. Works wonders :)
Re:Ask HN: Do I place the fan so that it blows air inwards o...
by jschwartzi on Monday May 28, 2018 @10:50AM
(#17172691)
When I'm in a snowfield under the sun I'll smear snow on myself and stuff it down my shirt. Has the same effect.
Re:Ask HN: Do I place the fan so that it blows air inwards o...
by cgriswald on Monday May 28, 2018 @11:16AM
(#17172856)
Just be aware that you will also be getting a larger dose of dust and allergens.
Re:Ask HN: Do I place the fan so that it blows air inwards o...
by croon on Monday May 28, 2018 @05:20AM
(#17171471)
Assuming temperature in room is lower than your temperature (likely).
It only accelerates the speed at which your skin temperature moves to match the air temperature through convection.
If you can move air elsewhere to lower the temperature of the room, that is better long term.
Re:Ask HN: Do I place the fan so that it blows air inwards o...
by jakobegger on Monday May 28, 2018 @06:45AM
(#17171714)
The cooling effect of moving air is mainly because of evaporation of sweat. So it is more important how humid the air is, than how warm. Warm dry air blowing on you will cool you, warm humid air won’t.