Can electricity be made from diesel?

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    Diesel Electricity
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Discussion Overview

The discussion revolves around the feasibility of generating electricity from diesel fuel using generators. Participants explore the mechanics of generators, the role of fuel in powering engines, and the processes involved in converting mechanical energy to electrical energy. The conversation touches on various energy sources and excitation methods for generators.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • Some participants suggest that generators can operate on various fuels, including diesel and gasoline, to produce electricity.
  • It is noted that generators have a residual magnetic field that allows them to self-excite, although complete demagnetization would require an external electrical source to remagnetize.
  • One participant proposes that diesel fuel is used to start an engine, which then generates mechanical power that is converted into electrical energy by the generator.
  • There is a question regarding the use of permanent magnets for initial excitation, with some participants seeking clarification on how this relates to starting the engine.
  • Discussion includes the need for a starter mechanism to get the prime mover rotating, which may involve various electrical sources or methods.

Areas of Agreement / Disagreement

Participants express varying levels of understanding regarding the mechanics of generators and the role of different energy sources. There is no consensus on the specifics of excitation methods or the relationship between fuel and mechanical power generation.

Contextual Notes

Some assumptions about the operation of generators and the definitions of terms like "self-excitation" and "permanent magnets" remain unresolved. The discussion does not clarify the exact conditions under which different excitation methods are employed.

stickythighs
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I went to a traveling carnival a few weeks ago, and I noticed that the carnival had several generators to power the rides. My guess is the generator ran off either diesel or gasoline in order to make electricity, although the electricity from the generator might have came from a battery.

Can a generator without a battery create electricity from diesel fuel?

Can a generator without a battery create electricity from gasoline?
 
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The method of turning the generator (or alternator) doesn't matter.
It can be diesel, gasoline, water power, or even a hand crank.

Generators have a residual magnetic field that allows them to self excite.
If for some reason the generator becomes completely demagnetized then a battery or some other electrical source is required to remagnetize it.
 
NoTime said:
The method of turning the generator (or alternator) doesn't matter.
It can be diesel, gasoline, water power, or even a hand crank.

Generators have a residual magnetic field that allows them to self excite.
If for some reason the generator becomes completely demagnetized then a battery or some other electrical source is required to remagnetize it.

Some have permanent magnets as well for the initial excitation.

CS
 
notime and stewartcs,

I'm guessing that the diesel fuel is to start an engine in order to create mechanical power. The generator then turns the mechanical energy into electrical energy. Is this correct?

I am not sure what you mean when you say that some have permanent magnets for the initial excitation. Do you mean that a magnet is used to start the engine?
 
stickythighs said:
notime and stewartcs,

I'm guessing that the diesel fuel is to start an engine in order to create mechanical power. The generator then turns the mechanical energy into electrical energy. Is this correct?

The diesel fuel is the chemical energy source for the mechanical energy (the prime mover in a generator) that will be converted into the electrical energy.

stickythighs said:
notime and stewartcs,
I am not sure what you mean when you say that some have permanent magnets for the initial excitation. Do you mean that a magnet is used to start the engine?

In order for the generator to produce useable electrical power, the armature must be excited by a separate field. The field poles are energized by residual magnetism, an external source such as a battery, permanent magnets, self-excitation, or possibly some combination.

Here is a little info on field excitation:

http://en.wikipedia.org/wiki/Excitation_(magnetic)

To get the prime mover rotating, you'll need some type of starter. This may be another electrical source such as a bus (electrical bus that is), batteries, air, etc.

Hope that helps.

CS
 

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