Experimental Investigation of a Direct Injection Dual Fuel Diesel-Natural Gas Engine
A Seminar Report On
EXPERIMENTAL INVESTIGATION OF A DIRECT INJECTION DUAL FUEL DIESEL-NATURAL GAS ENGINE
Presented by JAGADEESH PUTTA ME04B118 S8 ME 27
Department of Mechanical Engineering NATIONAL INSTITUTE OF TECHNOLOGY CALICUT KERALA- 673 601 Winter 2007-08
CERTIFICATE
This is to certify that this seminar report entitled “EXPERIMENTAL INVESTIGATION
OF A DIRECT INJECTION DUAL FUEL DIESEL-NATURAL GAS ENGINE “is a bonafide
record of the seminar presented by JAGADEESH PUTTA, Roll no:ME04B118, during winter semester 2007-08 in partial fulfilment of the requirement for the award of B.Tech degree in Mechanical Engineering by the National Institute of Technology, Calicut.
Faculty In-Charge of Seminar Department of Mechanical Engineering N.I.T. Calicut Dated: 16April 2008
CONTENTS
1. Introduction 1.1 Methane as an Alternative Fuel 1.2 Dual Fuel 1.3 Effect of Injection 2. Combustion models 2.1 Theory 2.2 Combustion 2.3 Propagation of flame 3. Characterization of injector 4. Engine Tests 4.1 Engine setup 4.2 Driving cycles 4.3 Experimental parameters 4.4 Notations 4.5 Rate of heat release 5. Results and discussions 6. Conclusions 7. References
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FIGURES AND TABLES
Figures Fig.1 Burning zone before combustion. Fig.2 Definition of burning zone after the initiation of combustion. Fig.3 Electric driving signal and pressure traces measured by a piezoresistive sensor (pinj=10bar, pbomb =2–6 bar). Fig.4 Picture of the methane flux taken with a CCD camera using the shadowgraphy technique. Fig.5 Experimental layout for the dynamic behavior of the injection system. Fig.6 Experimental layout for tests on the engine. Fig.7 Brake-specific emissions for the tested operating conditions Fig.8 Pressure and ROHR histories for the experiments in dual-fuel configuration. Fig.9 Pressure and ROHR histories for the experiments in dual-fuel configuration (n = 2000 rpm) when varying the diesel fuel quantity and
EXPERIMENTAL INVESTIGATION OF A DIRECT INJECTION DUAL FUEL DIESEL-NATURAL GAS ENGINE
Presented by JAGADEESH PUTTA ME04B118 S8 ME 27
Department of Mechanical Engineering NATIONAL INSTITUTE OF TECHNOLOGY CALICUT KERALA- 673 601 Winter 2007-08
CERTIFICATE
This is to certify that this seminar report entitled “EXPERIMENTAL INVESTIGATION
OF A DIRECT INJECTION DUAL FUEL DIESEL-NATURAL GAS ENGINE “is a bonafide
record of the seminar presented by JAGADEESH PUTTA, Roll no:ME04B118, during winter semester 2007-08 in partial fulfilment of the requirement for the award of B.Tech degree in Mechanical Engineering by the National Institute of Technology, Calicut.
Faculty In-Charge of Seminar Department of Mechanical Engineering N.I.T. Calicut Dated: 16April 2008
CONTENTS
1. Introduction 1.1 Methane as an Alternative Fuel 1.2 Dual Fuel 1.3 Effect of Injection 2. Combustion models 2.1 Theory 2.2 Combustion 2.3 Propagation of flame 3. Characterization of injector 4. Engine Tests 4.1 Engine setup 4.2 Driving cycles 4.3 Experimental parameters 4.4 Notations 4.5 Rate of heat release 5. Results and discussions 6. Conclusions 7. References
PAGE NO:
2 2 2 3 4 4 4 5 6 8 8 9 9 10 10 11 14 15
i
FIGURES AND TABLES
Figures Fig.1 Burning zone before combustion. Fig.2 Definition of burning zone after the initiation of combustion. Fig.3 Electric driving signal and pressure traces measured by a piezoresistive sensor (pinj=10bar, pbomb =2–6 bar). Fig.4 Picture of the methane flux taken with a CCD camera using the shadowgraphy technique. Fig.5 Experimental layout for the dynamic behavior of the injection system. Fig.6 Experimental layout for tests on the engine. Fig.7 Brake-specific emissions for the tested operating conditions Fig.8 Pressure and ROHR histories for the experiments in dual-fuel configuration. Fig.9 Pressure and ROHR histories for the experiments in dual-fuel configuration (n = 2000 rpm) when varying the diesel fuel quantity and