umj seminar 15 nov 2016 2
TRANSCRIPT
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EXPERIMENTAL STUDY AND SIMULATION OF EXHAUST GAS
RECIRCULATION FOR FOUR CYLINDER ENGINE 2000CC
Dr. Eng. Agung SudrajadDepartment of Mechanical Engineering, Faculty of Engineering
University of Sultan Ageng Tirtayasa Jl. Jend. Sudirman KM 3, Cilegon – Banten, Indonesia
E-mail: [email protected]
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Introduction
• Focus on engine performance is an increase the efficiency of the engine• EGR (Exhaust Gas Recirculation) is flowing back the small amount of
exhaust air of engine• The phenomenon of fluid flow and characteristic of fluid is necessary
to study for analysis of exhaust gas recirculation (EGR) effectiveness
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Finite Volume Method as Karna Finite Volume Method
All of the fluid dynamic flow are using Navier Stoke theoreme:
a) p u v w g x
b) p u v w g x c) p u v w g x
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Engine Test
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Schematic Diagram of Engine Experimental
Note :
1. Lamp2. Amperemetere3. Voltmeter4. Inverter5. Exhaust Pipe6. Dinamo Ampere7. Van Radiator8. Radiator9. Speedometer10.Gas control11.Fuel Tank12.EGR pipe
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Methodology
The experimental conduct of 4 variable of load 200, 400, 600 and 800 Watt. The rotation of engine is 3000 rpm. The fuel used was Pertamina fuel 88 RON. The software for analysis is Cosmos Flow
Start
Problem identify
Research Objective
Literature study
Data Collecting
Basic Theory Simulation
Simulation Results
Data Analysis
Conclusions
Finish
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Results No EGR Condition (%) Re
1 5 16231,442 7 22934,633 10 32302,68
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200 400 600 8000
1000
2000
3000
4000
5000
6000
7000
8000 7437.41
3471.57 2663.37
2330.4
6580.06
3049.86
1946.352153.7
7217.5
3330.82
2254.12067.24
7311.18
3518.75
2510.8
1949.16
Normal
EGR 0.37%
EGR 0.47%
EGR 0.46%
LOAD (WATT)
SFC
(GR/
KwH)
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5% Turbulence Output
7% Turbulence Output10% Turbulence Output
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Conclusions
• The experimental of characteristic of EGR was done.
• Specific Fuel Consumption while using EGR is lowest at valve open 10% by 800 W load
• The valve EGR 0.47 % the velocity of fluid of air inlet is 1.065 x10-3m3/s