Project on electric car to increase the battery back up

[raghavendra]

hi friends i am working on project that is to generate electricity by using turbine which is integrated in the front portion of an electric car to charge the battery in turn which is used to propel the car. may i know how much efficient it is and what are the problems may occur to implement this idea, such as drag force etc.

 

[JaredJames]

To put it simply: Any energy you gain from the turbine will be significantly less than what you will lose from the engine due to the drag it produces.

Put simply, it will increase energy usage overall.

 

[jack001]

Your efficiency may decrease due to generation of residual force during generation of electricity in the winding. So better to not to apply this kind of arrangement as electric car power generation is too low..

 

[xxChrisxx]

This sort of thing can work, but you need it to work only when the engine is on overrun (ie no power input). A ducted system that has a flap that closes when the engine is under load for example. However regenerative braking systems will work better than turbines.

It's such an obvious thing to do to add a fan to gain. Why isn't it done everywhere?
The answer is becuase you don't really gain anything and it's just something else to go wrong.