Table 6 Comparison of Brake Thermal efficiency (B_The), Brake Specific fuel consumption (BSFC), volumetric efficiency (Vol_Eff %) of experimental and ANN predicted values.

From: Predictive modeling and optimization of SI engine performance and emissions with GEM blends using ANN and RSM

Test Case

B_The (%)

BSFC (g/kW hr)

Vol_Eff (%)

Exp

Pred

error %

Exp

Pred

error %

Exp

Pred

error %

1

26.95

27.185

0.871

336.391

337.325

0.278

57.6868

57.149

0.93225

2

32.95

33.651

2.128

275.136

276.370

0.449

58.5

58.0125

0.83325

3

35.5

35.753

0.713

255.373

261.605

2.441

64.89

65.96

1.6489

4

37.14

37.083

0.154

244.096

246.644

1.044

73.6

72.063

2.08837

5

36.8

36.991

0.518

246.351

254.714

3.395

75.2

74.2915

1.20814

6

26.9

27.112

0.789

353.297

343.603

2.744

58.1841

57.21

1.67417

7

32.8

33.296

1.513

289.747

281.314

2.911

58.7

57.65

1.78876

8

33.6

34.699

3.270

282.848

279.156

1.305

65.21

64.237

1.49215

9

36.8

36.733

0.181

258.253

261.325

1.190

73.9

72.64

1.70501

10

36.1

36.712

1.696

263.260

259.476

1.437

75.6

74.23

1.81212