Optimization of Performance and Emission Characteristics of Diesel Engine with Biodiesel Using Grey-Taguchi Method

Table 5

Calculated grey relational coefficient of all responses and grey relational grade with weightage.

Weighting factor	0.3	0.3	0.3	0.01	0.01	0.03	0.01	0.04	Total = 1
No. of exp.	Grey relational coefficient
	BP	BSFC	BTE	CO	HC	CO2	O2	NO𝑥	Overall grey relation grade
1	0.33765	0.333333	0.333333	0.514286	0.430168	0.586592	0.43927	0.982634	0.373445
2	0.333333	0.338321	0.340414	0.507042	0.37931	0.644172	0.417464	1	0.378041
3	0.33642	0.425944	0.386093	0.692308	0.516779	0.660377	0.405343	0.857323	0.417256
4	0.335961	0.462224	0.419843	0.837209	0.793814	0.644172	0.407235	0.697125	0.435404
5	0.333886	0.354246	0.382147	0.878049	0.905882	0.628743	0.409384	0.580342	0.38742
6	0.406158	0.631127	0.476157	0.878049	0.681416	0.538462	0.455316	0.532132	0.512611
7	0.400941	0.636456	0.498413	0.857143	0.531034	0.538462	0.464714	0.522308	0.517082
8	0.400289	0.67522	0.551299	0.923077	0.562044	0.549738	0.453247	0.479181	0.544128
9	0.407054	0.695535	0.612821	0.9	0.865169	0.517241	0.47035	0.44177	0.570799
10	0.414748	0.566512	0.552407	0.642857	0.706422	0.527638	0.465644	0.82704	0.527902
11	0.505474	0.918667	0.732055	1	0.719626	0.458515	0.532418	0.39294	0.698241
12	0.499549	0.830083	0.674644	0.972973	0.616	0.454545	0.538165	0.359259	0.649848
13	0.513915	0.917668	0.864036	0.972973	0.546099	0.462555	0.529189	0.398474	0.738431
14	0.491898	0.723657	0.646022	0.8	0.606299	0.439331	0.556175	0.473831	0.60921
15	0.508724	0.749971	0.840584	0.857143	0.777778	0.458515	0.524418	0.436095	0.68211
16	0.667872	1	0.848695	0.972973	1	1	0.333333	0.974175	0.853667
17	0.673761	0.998456	0.935102	0.923077	0.587786	0.384615	0.678988	0.374311	0.827772
18	0.638985	0.870237	0.781823	0.837209	0.445087	0.381818	0.678328	0.362714	0.730059
19	0.640462	0.853863	0.850008	0.9	0.626016	0.390335	0.649907	0.355311	0.748546
20	0.656787	0.810048	1	0.9	0.733333	0.39924	0.619893	0.333333	0.785884
21	0.881464	0.894241	0.702223	0.537313	0.810526	0.606936	0.426129	0.642992	0.806833
22	1	0.864383	0.716782	0.333333	0.333333	0.333333	1	0.380819	0.809582
23	0.933053	0.852765	0.754927	0.553846	0.398964	0.339806	0.900645	0.352911	0.799523
24	0.884278	0.809076	0.768489	0.692308	0.546099	0.34202	0.845036	0.351086	0.778791
25	0.986204	0.805587	0.986363	0.765957	0.636364	0.344262	0.821176	0.342238	0.875081