The main difference between a diesel and a steam engine is the diesel engine is an internal combustion and the steam engine is external combustion.
The diesel engine is designed to use diesel, which reaches combustion at high (relatively to petrol) pressure and temperature. If petrol is injected into a diesel engine, then combustion will take place in a, very different than it was designed, way, which will eventually destroy the engine. But there are engines that have been designed to burn diesel or petrol. They call them bifuel engines. Old farmer tractors used to have this kind of engines.
The Diesel cycle engine was named after the German engineer who invented it, Rudolf Diesel. A Diesel engine uses two principles: air gets hot when you compress it, and fuel will ignite if it gets hot enough. The engine compresses air introduced into the cylinder to a very high pressure. When fuel is injected it immediately ignites.
diesel
In dual combustion cycle heat is added at constant volume which increases the efficiency of cycle, whereas heat addition at constant pressure limits the maximum pressure of the cycle.
The auto combustion pressure for a diesel engine is 580 psi. This is compared to the 200 psi of the gas powered engine.
The calorific value of fuel is the quantity of heat produced by its combustion at a constant pressure and under normal conditions. For diesel, the calorific value is 44,800.
Stoich for combustion of deisal is different and pressure required as well. Carbs only work with combustion point and air requirements of gas.
HDI is High pressure Direct Injection engine that is found in diesel cars. Fuel is injected into the combustion changer under high pressure.
Gasoline engine is an internal combustion engine where a diesel is an internal compression engine. Gasoline is highly flammable and explodes when an electrical spark is applied to it where diesel explodes when it is put under pressure
In terms of engines, an external combustion engine such as a steam engine burns fuel outside of the pressure cylinder used to drive the piston. An internal combustion engine such as a petrol or diesel engine burns the fuel inside the pressure cylinder used to drive the piston.
Rather than introducing a spark to promote combustion, the diesel fuel is continually compressed in four cycles until it reaches a point where the pressure causes it to combust.
Diesel Engine combustion chamber types : Swirl port combustion chamber type and Preignition port combustion chamber type.
Petrol and diesel engines are internal combustion engines. The internal combustion that turns the engine and powers the wheels is created by the combustion of fuel. No fuel, no combustion, and nothing to drive the wheels.
The main difference between a diesel and a steam engine is the diesel engine is an internal combustion and the steam engine is external combustion.
Internal combustion engine is where the fuel is ignited in the cylinder to make the piston move, petrol or diesel. A steam engine has an external pressure vessel to supply the steam to the cylinder to push the piston. the is no combustion in the engine as such.
Actually in CI engine,we use Diesel as a fuel and diesel burn at lower temp than petrol and also at constant temp, so for obtaining desirable temp we are working at constant pressure. And inject the fuel on compressed air at constant pressure.