In a diesel engine, the fuel-air mixture is introduced at room temperature and burned inside the cylinder. After the fuel is burned, the combustion products are discharged at atmospheric pressure and high temperature. The heat generated during the combustion of fuel is partially converted into work to drive the car (or any load) and remaining is wasted to the atmosphere through exhaust gas and coolant. The heat generated by combustion of fuel is converted into the work because of the pressure created by the combustion process. The efficiency of the engines is between 20 and 30 %. This paper highlights provision for incorporating a heating vessel for preheating air before admitting into the cylinder of a diesel engine. The heating vessel comprises heating elements for heating the air flowing past said heating element, and a body for mechanically holding and electrically contacting said heating element. The effect of preheated air on standard diesel fuel engine indicated a good result on emission control. NOx and CO emissions at intake air temperature of 55 °C were less when compared at intake air temperature of 32 °C. Higher inlet air temperature causes lower ignition delay, which is responsible for lower NOx formation. Uniform or better combustion is occurred due to pre-heating of inlet air, which also causes lower engine noise. Easy vaporization and better mixing of air and fuel occur due to warm up of inlet air, which causes lower CO emission.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Design and Fabrication of Air Preheater for Diesel Engine


    Additional title:

    Lect.Notes Mechanical Engineering


    Contributors:


    Publication date :

    2014-05-03


    Size :

    7 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




    Design and Fabrication of Air Preheater for Diesel Engine

    Sharma, Vikas / Babu, J. M. / Naresh, R. et al. | TIBKAT | 2014



    Portable engine preheater fired by propane

    HOBART RICHARD LEE / HOBART JOHN BENNETT | European Patent Office | 2016

    Free access

    PREHEATING METHOD AND PREHEATER OF MAIN ENGINE OF SHIP

    KIM HYOUNG KWON | European Patent Office | 2016

    Free access