Facebook PixelCar radiator fans can replace windmills as a renewable source of energy
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Car radiator fans can replace windmills as a renewable source of energy

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Shireesh Apte
Shireesh Apte May 08, 2022
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The radiator fan in a car currently is designed to spin either in response to a thermostat or continuously upon engine turnover. In either case, the power to turn the fan is provided by the car battery. If the fan were to be placed in front of the radiator (as opposed to the back as it currently is now), it could effectively harness the wind to turn it when the car is in motion. This 'pinwheel' could then be used as a generator to power another battery (the 'windmill battery') in the car. When the car pulls up at a petrol (gasoline) station, the engine could be kept running and the windmill battery could be used to feed power into the grid using the car's ignition coil as a step up transformer to create a positive voltage gradient between the windmill battery and the power grid. These 'millions of windmills' could obviate the need to build gigantic windmills. The vehicle operators/owners could be given credits on how much electricity they upload to the grid and use those credits toward a reduction in gasoline price.
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Povilas S
Povilas S3 days ago
I don't know much about car engines, but it seems to me that there must be a reason why the fan is in the back of the radiator and why it is powered by car's battery, all this is probably necessary to effectively cool the radiator. Nobody would use additional energy if it was easy to avoid it. Do you propose using two fans then - one for cooling the radiator and another one solely for generating power from an airflow caused by the car's movement?
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Shireesh Apte
Shireesh Apte3 days ago
Povilas S No, just one fan, just as you turn the direction of the fan during summer or winter in your house, to blow hot air up or down, all you would need to do is change the vane incline so that it would blow air toward the radiator (at the back) instead of toward it (to the front) as it is done now.
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Povilas S
Povilas S2 days ago
Shireesh Apte Why do you think this isn't already the case in cars then? I mean it would save energy and be way more worthy
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Spook Louw
Spook Louw5 months ago
This would be great! Do you have any idea how much power you would be able to generate on a fan of that size?
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Shireesh Apte
Shireesh Apte4 months ago
Spook Louw Thank You. Assuming a car battery is 12 V, 500 Ah, it can hold a charge of 1.2 KWh. Assuming it takes 30 minutes driving to fully recharge a battery, and assuming 1 hour driving per day, that would be 2.4 KWh of charge per day. 10 days driving would power a house for 1 day (24 KWh). you would need a battery to store 24 KWh and upload to the grid every 10 days. 50 million cars driving 10 days would power the entire single family housing stock of the US for 1 day. This is a first approximation.
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