Gasoline, diesel, JP8, and naphtha as fuel?

[EdDanzer]

What are some of the differences when using gasoline, diesel, JP8, and naphtha as a fuel in an internal combustion engine?
Can they all be spark ignited?
Can they all be compression ignited?
Could a common injector be used?
Could port injection be used or is direct injection best?
What compression ratios do each need for best combustion?

Any other thought or ideas would be appreciated.

 

[25362]

When speaking only of petroleum fuels, you have listed hydrocarbon groups of different boiling ranges and therefore, also differing molecular lengths and chemical structures. Gasoline, naphtha, kerosine (= JP-8) and diesel, have, in this order: decreasing volatilites, increasing BP, mol. weights and viscosities, etc. Although there is not a small overlap between the fractions mentioned, their use in internal combustion engines (stationary or mobile, spark -piston or turbine- or diesel) needs different preparation and ignition procedures. Naphthas and keros are generally grouped together in this sense.

There are marked differences in specs. among the eastern and western countries, that, on further analysis, make the comparison more difficult.

 

[EdDanzer]

I’m interested in what the differences between engine designs are for each fuel, and how this differences effect combustion of the fuel.