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Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.12 [2005] >
IJEMS Vol.12(6) [December 2005] >
| Title: | Optimizing diesel engine parameters for emission reduction using Taguchi method: Variation risk analysis approach – Part II |
| Authors: | Nataraj, M
Arunachalam, V P
Dhandapani, N |
| Issue Date: | Dec-2005 |
| Publisher: | CSIR |
| IPC Code: | F02B |
| Abstract: | Taguchi
parameter design research methodology allows one to make products or processes
robust to uncontrollable noise factors and will also reduce the number of
experiments to be carried out to arrive an optimized system. The main objective
of this work is to study the various operating parameters of diesel engine to
propose modified engine parameter (optimum) settings for reduction in NOX,
HC, CO and smoke concentrations simultaneously in diesel emission by applying
Taguchi parameter design concept. Taguchi L18 (21 37) quality design concept mixed orthogonal array has
been used to determine the S/N ratio (dB), analysis of variance (ANOVA) and F0 test values for
recognizing most significant engine operating parameters that influence exhaust
emission. The experimental results give an idea about how the variations in
engine settings like nozzle spray holes, piston-to-head clearance, nozzle
protrusion, injection control pressure, start of injection timing and swirl level
alter the pollutant (NOX, HC, CO and smoke) intensity in emission.
Considering these significant engine-operating parameters, verification of the
improvement in the quality characteristics for emission reduction has been done
through confirmation test with reference to the chosen initial or reference
parameter settings. These confirmation test results prove that the optimal
combination of diesel engine parameters obtained from the investigation
reducing the pollutant levels in exhaust emission in reality. |
| Page(s): | 505-514 |
| ISSN: | 0975-1017 (Online); 0971-4588 (Print) |
| Source: | IJEMS Vol.12(6) [December 2005]
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