can we use the hot dry air coming out from a vent to generate electricity?

Answer 1

If you're talking about forced air, it would be counter-productive. For any kind of generator to produce electricity, it would naturally require enough air movement to overcome the resistance of turning your generator. (And, the more you want to 'produce', the greater the movement of air would have to be.) What produces the movement of air in the first place is a fan inside the heater itself. So to increase the air movement you have to increase the electricity used. So it's like a catch-22. The more electricity you want to generate, the more is going to be used; thereby eliminating any extra useful energy.

Answer 2

You may possibly use a turbine and generator if the air is coming out with any degree of pressure. A turbine can still be used if the air is relativly hot, light-weight materials should be used to increase the output.

Answer 3

you could but how big a vent? it would be better to use the hot air to heat a liquid to turn a genaraor to make electricity

Answer 4

Yes . you can use it if the air coming out of the vent is forcible enough to turn a turbine which can be used to rotate a dynamo.
All chemical and bi-chemical reaction should involve transfer of electrons from one substance to another . If we can trap those electrons we can generate elecricity for our domestic use.

Answer 5

Theoretically yes. If say, you routed that hot air up through a pipe, and inside that pipe was a small fan, and that fan was connected to a tiny(!) generator, you could produce a small current flow.

Answer 6

This has been tried with hot air emanating from polititians. Although in plentiful supply and very cheap to produce it proved unreliable in both the short and long terms.

Answer 7

may be yes but you should be much carefull about the pressure can return back inside the engine and can broke it down