Page 450 - Advances in Eco-Fuels for a Sustainable Environment

Assessment of performance and emission behavior of novel annona 403

80.00
70.00
Cylinder pressure (bar) 50.00 Diesel
60.00

A20
40.00
A40
30.00
A60
20.00
A100
10.00 A80
0.00
320 326 332 338 344 350 356 362 368 374 380 386 392 398 404 410 416 422 428
Crake angle (Degree)
Fig. 14.9 Variation of cylinder pressure with crank angle for different proportions of AME-
diesel and diesel.

14.3.6 Heat release rate

The variation of heat release rate with crank angle for different proportions of AME-
diesel and diesel at full load is shown in Fig. 14.10. The heat release rate of AME-
diesel blends is lower than that of diesel. The peak heat release rate is higher for diesel
than that of AME-diesel blends. This is due to increased accumulation of fuel during
the longer delay period, which results in a higher rate of heat release in the premixed
combustion [31]. The heat release rate decreases with increasing the percentage of
proportions in the AME-diesel blends. This is due to the lower ignition delay of
the AME-diesel blends, which results in lower cylinder pressure.

90
80
70
Diesel
60
HRR (J/Degree) 50 A40
A20
40
30
A60
20
10 A80
A100
0
–40 –30 –20 –10 0 10 20 30 40 50
–10
Crank angle (Degree)
Fig. 14.10 Variation of heat release rate with crank angle for different proportions of AME-
diesel and diesel.