Diesels are at the top of the Dead Pool – on account of their particularly diesel exhaust byproducts, specifically particulates (aka, soot) and oxides of nitrogen (aka NOx). But diesels are much more fuel-efficient than gas-burning engines because they are compression ignition engines.
Well, compression and heat.
Instead of a spark to set off the explosion, the air/fuel charge is progressively squeezed (and thereby, heated) as the pistons ascends within its cylinder until – boom! – it ignites spontaneously.
More of the potential energy contained in the fuel is translated into useful mechanical energy.
This is why diesels go farther on a gallon of fuel than gas-burners.
No comments:
Post a Comment