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: agung@untirta.ac.id

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

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

 

Engine Test

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

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

Results No EGR Condition (%) Re

1 5 16231,442 7 22934,633 10 32302,68

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)

5% Turbulence Output

7% Turbulence Output10% Turbulence Output

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