Eli5: Why are nuclear power plants smoke stacks shaped so differently from others?

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If it’s just for steam why make it different?

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Anonymous 0 Comments

They’re cooling towers like others have mentioned but in addition to that, not all nuclear plants have cooling towers. Some just rotate water from e.g. a lake or a sea.

For example, the Olkiluoto nuclear power plant: [https://en.wikipedia.org/wiki/Olkiluoto_Nuclear_Power_Plant#/media/File:Olkiluoto_Nuclear_Power_Plant_2015-07-21_001_(cropped).jpg](https://en.wikipedia.org/wiki/Olkiluoto_Nuclear_Power_Plant#/media/File:Olkiluoto_Nuclear_Power_Plant_2015-07-21_001_(cropped).jpg)

The high towers there aren’t for smoke but for exhausting the ordinary air from inside the power plant. In case of a radioactive leak, any contaminated air is pushed high enough that it’s spread to the atmosphere instead of contaminating the site. Under normal operating conditions they don’t really offer any particular benefit though.

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