Saturday, November 17, 2012

Energy conversion in an Automobile or car

simple energy conversion in a CAR (automobile):

Fuel-->Engine-->Alternator-->Voltage regulator-->

-->Car Electrical system-->Car Power line-->Motor-->Starter


Gasoline or petrol is a petroleum-derived liquid mixture, primarily used as fuel in internal combustion engines


A machine designed for the conversion of energy into useful mechanical motion

From Latin in + gen (gignere = create, beget)

When an engine's output is mechanical energy, it is called a prime mover


An alternator is an electromechanical device that converts mechanical energy to alternating current electrical energy

Also called AC electrical generator

A car alternator powers the automobile's electrical system , and charges the battery when the car is running

Voltage regulator

A device or circuit that maintains constant output voltage in spite of changing line voltage and/or load current

Car electrical system

The car's electrical system supplies power to the car's radio, lights, clock, cellular phone, cigarette lighter, rear window defrosters, electric door locks, etc.

Car power line

Power generated is transferred through power lines then to the car's accessories and auxillary equipment that consumes power


A device that converts electrical energy into mechanical energy


A starter is a device driven by an electric motor that initiates rotational motion in an internal combustion engine before it can power itself

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