An experimental investigation is carried out in a single-cylinder, constant speed, low heat rejection (LHR) diesel engine to study the effects of adding N-Isopropyl-N'-phenyl-1, 4-phenylenediamine (IPPD) as on oxidant to a Jatropha Methyl Ester (JME)-diesel blend comprising 20% JME and 80% diesel (JME20) on the combustion, performance, and emission, parameters of the test engine. The investigation is carried out in the diesel engine using the following fuels: diesel, JME20, and IPPD doped JME20 in an LHR mode. Four different concentrations of IPPD viz 500 ppm, 1000 ppm, 1500 ppm, and 2000 ppm are doped with JME20 in the investigation. For LHR mode, the piston crown is coated with two layers of thermal barrier coating (TBC) materials. The first layer is NiAl coating with a thickness of 0.15 mm and another layer is YSZ+CeO2 coating with a thickness of 0.3 mm. The experimental results reveal that there is an appreciable reduction in the brake specific fuel consumption (BSFC) noticed with the IPPD doped JME20 fuels compared to that of JME20 and diesel at full load. The value of BSFC for the JME20 fuel observed at full load is 0.69 kg/kWh, and it is 0.67 and 0.64 kg/kWh for the JME20A2 and JME20A3 fuels, respectively. At full load operation, the BSFC is improved about 10% for JME20-A3 than that of the JME20 fueled conventional diesel engine. Further, due to the combined effects of micro-explosion and the secondary atomization phenomena associated with the IPPD doped JME20 fuels, the unburnt hydrocarbon (HC) and carbon monoxide (CO) emissions are lesser by about 30.6% and 22.4%, respectively, compared to those of diesel operation at full load. The smoke opacity was reduced by about 11.5%, at full load condition for JME20 A3 in the LHR engine.


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    Title :

    Experimental Studies of LHR Diesel Engine Fueled with Antioxidant Doped JME Biodiesel Blends


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    WCX SAE World Congress Experience ; 2022



    Publication date :

    2022-03-29




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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