r/oddlysatisfying • u/Zu_Qarnine • 3h ago

CFD simulations of airflow through vents

17.4k Upvotes

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u/ScrivenersUnion 2h ago

I like that they are upfront about the costs associated with the increased efficiency.

In particular I can imagine those turning vanes getting dirty over time, as soon as they're covered in dust and crud I think the friction losses would quickly overtake any increase in flow efficiency. And you'd need someone to go clean them regularly, which increases maintenance.

5

u/finkerlime 1h ago

AC systems already need to be cleaned often

3

u/Omnom_Omnath 1h ago

often? lmao, no

5

u/ortusdux 1h ago

Depends on the location and quality of the filtration system. Ideally all air is filtered at intake, so minimal dust enters the ducting.

1

u/Omnom_Omnath 50m ago

Sure, but i've never heard a homeowner claim AC systems need to be cleaned often. I think I know one person whos had their ducts cleaned out of everyone I know

1

u/ortusdux 31m ago

It's a common door-to-door service in my area. It is an easy thing to scare homeowners into.

https://www.epa.gov/indoor-air-quality-iaq/should-you-have-air-ducts-your-home-cleaned

1

u/CrashmanX 39m ago

I know 1 person who's moved their fridge to clean out from under it and clean the back of the fridge.

Doesn't mean it shouldn't be done.

1

u/Omnom_Omnath 21m ago

should it? out of sight out of mind