Page 447 - Advances in Eco-Fuels for a Sustainable Environment

400 Advances in Eco-Fuels for a Sustainable Environment

45
40
35
30 Diesel
HC (ppm) 25 A20
A40
20
15 A60
10 A80
5 A100
0
0 1 2 3 4 5 6
BP(kW)
Fig. 14.5 Variation of HC with BP for diesel and different proportions of AME diesel blends.

14.3.4.2 Carbon monoxide emission
CO emissions depend on the combustion of the fuel air mixture and the presence of
carbon content in the fuel. During the combustion, the carbon present in the fuel gets
oxidized with the oxygen present in the air and finally forms CO and CO 2 , depending
on the condition. The carbon present in the fuel which is not converted into CO 2 and
become CO in the exhaust.
Fig. 14.6 shows the variation of CO with brake power for different proportions of
AME diesel blends and diesel. It is seen that the CO emission is decreased with
increasing brake power for all blends at all loads. Among the different blends, A20
has a lower CO emission than that of other blends. The CO for A20 is 0.03% and

0.16

0.14
0.12
Diesel
0.1 A20
CO (%) 0.08 A40

0.06
A60
0.04 A80

0.02 A100
0
0 1 2 3 4 5 6
BP(kW)
Fig. 14.6 Variation of CO with BP for diesel and different proportions of AME diesel blends.