Advantages of Diesel Engines

There are many advantages of diesel engines some of them are here:

• They burn less fuel than a petrol engine performing the same work, due to the engine higher temperature of combustion and greater expansion ratio. Gasoline engines are typically 30% efficient while diesel engines can convert over 45% of the fuel energy into mechanical energy.

• They have no high voltage electrical ignition system, resulting in high reliability and easy to damp environments.Due to absence of coils, spark plug wires, etc., also eliminates a source of radio frequency emissions which can navigation and communication equipment, it is especially important in marine and aircraft applications, and for preventing interference with radio telescopes.

• The long-life of a diesel engine is generally about twice that of a petrol engine due to the increased strength of parts used. Diesel fuel has better lubrication properties than petrol as well. Indeed, in unit injectors, the fuel is employed for three distinct purposes: injector lubrication, injector cooling and injection for combustion.

• Diesel fuel is distilled directly from petroleum. Distillation yields some gasoline, but the yield would be without catalytic reforming, which is a more costly process.
•  Diesel fuel is safer than petrol in many applications. Although diesel fuel will burn in open air using a wick, it will not explode and does not release a large amount of flammable vapors. The low vapor pressure of diesel is especially advantageous in marine applications, where the accumulation of explosive fuel-air mixtures is a particular hazard. For the same reason, diesel engines are immune to vapor lock.
• For any partial load the fuel efficiency mass burned per energy produced of a diesel engine remains nearly constant, as opposed to petrol and turbine engines which use proportionally more fuel with partial power outputs.
• They generate less waste heat in cooling and exhaust.
• Diesel engines can accept super or turbo-charging pressure without any natural limit, constrained only by the strength of engine components. This is unlike petrol engines, which suffer detonation at higher pressure.
• The carbon monoxide content of the exhaust is minimum.
• Biodiesel is an easily synthesized, non-petroleum-based fuel which can run directly in many diesel engines, while gasoline engines either need adaptation to run synthetic fuels or else use them as an additive to gasoline ethanol is added to gasohol