If air conditioner efficiency improves when it rains outside, why don't all air conditioners include water sprayers to help cool them?

submitted by magnora7 from self.science

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[–]happysmash27 2 insightful - 1 fun2 insightful - 0 fun3 insightful - 1 fun -  (1 child)

It might be more efficient in terms of electricity, but wouldn't it be less efficient in terms of water usage? That's a big problem in draught-prone areas, and might result in even more energy usage in places which use desalination plants for water.

[–]magnora7[S] 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 1 fun -  (0 children)

But just from a cost perspective, if you can use 10 cents of water and save 30 cents of electricity, then that's a net benefit cost-wise. Which means it consumes less energy overall, which is better for the earth