/sci/ - Science & Math

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C Mon Sep 5 01:05:33 2011 No.3687756 [Reply] [Original]

Why don't we build massive air conditioners to cool down the Earth? Someone was talking about it on here yesterday and laughed at the idea, I'm guessing because the sheer size of these things would make them nearly impossible to build.

But what if we use simpler designs, and scale them up? Could this lower the Earth's temperature by a few degrees?

>>	Anonymous Mon Sep 5 01:08:33 2011 No.3687765 And the heat would go into space?

>>	C Mon Sep 5 01:09:33 2011 No.3687771 >>3687765 No, I'm talking about the kind of air conditioner that cools things down. I realize that "air conditioner" means to "condition the air", so it could make the air cooler or hotter. I'm talking about cooling the air.

>>	Anonymous Mon Sep 5 01:10:33 2011 No.3687773 y'all bakers toasting in a roll bread

Anonymous Mon Sep 5 01:11:33 2011 No.3687775

>>3687756

>Why don't we build massive air conditioners to cool down the Earth?

Because of the chemicals that they release that would effectively ruin the Ozone, which would end with us hiding in subterranean world to avoid getting fried.
Now considering that you werent aware of this indicates that you havent yet finished your primary school which entitles us all to report you for being underage.

>>	Anonymous Mon Sep 5 01:12:33 2011 No.3687776 >>3687765 What if you coupled the air conditioner with a Sterling engine, and produced energy from some of the heat? You're still producing heat, but at least you're using it in place of coal, for example.

>>	cy Mon Sep 5 01:12:33 2011 No.3687777 >>3687771 >>3687765 you'd have to put the heat somewhere else. preferrably space.

>>	Anonymous Mon Sep 5 01:12:33 2011 No.3687778 >>3687771 On the off chance that you're not trolling, air conditioning can't make heat disappear. Rather, it moves heat from one place to another. It can move heat out your window, but it can't move it off the planet, really.

>>	Anonymous Mon Sep 5 01:13:33 2011 No.3687781 >>3687775 Aren't there new chemicals that don't harm the ozone layer though?

Anonymous Mon Sep 5 01:14:33 2011 No.3687785

I think we should also run a hose from the air conditioner's output back to its input, making the same air so cold that once you let it out of the system, it would instantly disperse (due to diffusion) and drop the whole earth's temperature by like six degrees

>>	C Mon Sep 5 01:15:33 2011 No.3687786 >>3687778 Just wikipedia'd air conditioners and it seems you're right. hmm...then what if you put the heat into space?

Anonymous Mon Sep 5 01:17:33 2011 No.3687794

>>3687786
First, you'd lose heat through the tubing that carries the heat into space. Assuming your tube has a vacuum separating the inside from the outside environment, you'd eliminate this problem, but then how do you get the heat INTO space? You need a radiator, for the same reason that the vacuum in the tube keeps the heat in the tube. It's the same way a thermos works.

>>	Anonymous Mon Sep 5 01:17:33 2011 No.3687793 >>3687786 send heat to poland poland into space

>>	C Mon Sep 5 01:18:33 2011 No.3687798 >>3687793 Actually, that's not a bad idea. We put the heat into something that heats up and cools down really slowly, put a vacuum around it, and send it into space.

>>	Anonymous Mon Sep 5 01:18:33 2011 No.3687799 Why don't we just get a few gigantic (hundreds of tons) ice cubes and drop them in strategic points across the ocean and let the jet streams do the cooling.

>>	Anonymous Mon Sep 5 01:20:33 2011 No.3687802 >>3687799 nice thinking numbnuts, but what if sharks ate the ice cubes

>>	Skunkworks !e1337Hykks Mon Sep 5 01:21:33 2011 No.3687806 >heat something up until it emits lots of light >reflect light into space >???? >PROFIT! Well, yes, but highly impractical.

>>	Anonymous Mon Sep 5 01:22:33 2011 No.3687810 >>3687776 It wouldn't produce enough heat to make the Sterling engine worthwhile to use.

>>	Anonymous Mon Sep 5 01:22:33 2011 No.3687811 ITT: People who have never heard the word "thermodynamics."

>>	Anonymous Mon Sep 5 01:23:33 2011 No.3687815 >>3687802 Sharks hate brainfreeze, but if megashark tries to interrupt, we just send in dinocroc to defeat him.

>>	Anonymous Mon Sep 5 01:24:33 2011 No.3687817 >>3687798 What about the amount of heat generated from the rockets that bring it into space?

>>	Anonymous Mon Sep 5 01:24:33 2011 No.3687819 >>3687781 >Aren't there new chemicals that don't harm the ozone layer though? Like what?

>>	Anonymous Mon Sep 5 01:25:33 2011 No.3687820 >>3687817 Well duh....then you just have the make the rocket that is also a refrigerator.

>>	Anonymous Mon Sep 5 01:26:33 2011 No.3687825 >>3687819 R-410A?

>>	C Mon Sep 5 01:28:33 2011 No.3687834 >>3687817 Another good point. Why don't we make a spaceship that's solar powered? Imagine a giant flat surface, covered with thin solar panels. This powers a fan, which slowly lifts the rocket into space.

Anonymous Mon Sep 5 01:30:33 2011 No.3687837

There's actually one mechanism by which OP's post isn't impossible, for a small closed system: black-body radiation.

You could pump heat into a black body in near-vacuum (harder than it sounds) until it gives off light, and then let the light escape the system.

>>	contributor Anonymous Mon Sep 5 01:35:33 2011 No.3687863 File: 156 KB, 540x701, 1309510037837.png [View same] [iqdb] [saucenao] [google] >>3687756 Global warming doesn't exist Don't be a idiot look at the evdence and the motives of people like al gore!!

>>	Anonymous Mon Sep 5 01:40:33 2011 No.3687872 >>3687834 There would be no air eventually for the fan to spin around in.

>>	Anonymous Mon Sep 5 01:40:33 2011 No.3687873 >>3687863 >a idiot

>>	Anonymous Mon Sep 5 01:53:33 2011 No.3687924 >>3687825 R-410A FTW.

>>	Anonymous Mon Sep 5 01:59:33 2011 No.3687939 >>3687924 >R-410A Environmental effects: Unlike many alkyl halide refrigerants, it does not contribute to ozone depletion, and is therefore becoming more widely used as ozone-depleting refrigerants Hahaha just no.

>>	Anonymous Mon Sep 5 02:06:33 2011 No.3687978 >>3687939 It is really bad for global war.. climate change though. Comparable to to older refrigerants I believe.

>>	Anonymous Mon Sep 5 02:09:33 2011 No.3687984 >>3687771 conservation of energy when somethings heat up, something else is cooling down

>>	Scientist !!ThFjnJh4EkH Mon Sep 5 02:26:33 2011 No.3688017 >>3687756 "Air Conditions" work merely by moving heat from one place to another place. Also, as they do work, they generate heat. So in fact, you ended up with more heat than where you started. Pesky thermodynamics.

>>	Anonymous Mon Sep 5 11:33:33 2011 No.3689606 >>3687873 Look at the data your self, idiot.

>>	Anonymous Mon Sep 5 11:45:33 2011 No.3689648 shoot dust into upper atmosphere reduce sun light bam problem solved

>>	Anonymous Mon Sep 5 11:56:33 2011 No.3689685 GUYS GUYS WHAT IF ARE YOU LISTENING GUYS? WHAT IF WE SENT THE HEAT INTO A BLACK HOLE

>>	Anonymous Mon Sep 5 12:15:33 2011 No.3689779 OP's first thermodynamics?

>>	Anonymous Mon Sep 5 12:49:33 2011 No.3689962 Fucking Entropy, How does it work?

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