The Major Distinction Between Diesel And Gas Lies Inthe Type Of Ignition. While Gas Engines Operate Onspark Ignition, Diesel Engines Employ Compressionignition For Igniting The Fuel. With Compression, Theair Is Drawn Into The Engine And Subjected To Highcompression That Heats It Up. The Result Is A Veryhigh Temperature In The Engine, Much High Than Thatof Gas Engines. In Diesel Engines, Air And Fuel Are Both Infused Intothe Engine At Different Stages, As Opposed To Gas Where A Mixture Of Air And Gas Are Introduced. Thefuel Is Injected Into The Diesel Using An Injector Where In A Gas Engine, A Carburetor Is Used For Thisvery Purpose. With Gas Engines, Fuel And Air Are Sent Into The Engine At The Same Time, Then Compressed. The Airand Fuel Mixture Will Limit Fuel Compression, Andthereby Hence The Overall Efficiency. Diesel Enginesonly Compress Air, And The Resulting Ratio Can Be Much Higher. AdvantagesDiesel Engines Are Much More Efficient And Preferable As Compared To Gas Engines Due To Thefollowing Reasons:1. Diesel Engines Have Overcome The Severaldisadvantages Of Earlier Models That Featured Highernoise And Maintenance Costs. Now, They Are Quietand Require Less Regular Maintenance When Comparedwith Gas Engines Of A Similar Size.2. Diesel Engines Are More Rugged And Reliable.3. There Is No Sparking At All As The Fuelignites. The Absence Of Spark Plubs Or Spark Wires Also Helps To Lower Maintenance Cost.4. The Fuel Cost Produced Is 30 - 50 Percentlower Than Gas Engine Fuel Prices.5. Gas Burns Hotter Than Diesel, And Therefore They Have A Shorter Life Span When Theyare Compared With Diesel Engines.(word Count 285)PPPPP
