Page 224 - Biofuels for a More Sustainable Future

200 Biofuels for a More Sustainable Future

150
100
Global hectare (thousands) –100 Human health Ecosystem Ecological Revenue Triple I
50
-
–50
footprint
quality
–150
–200
–250
–300
(A)
150
Global hectare (thousands) –100 Human health Ecosystem Ecological Revenue Triple I
100
50
-
–50
footprint
quality
–150
–200
–250
–300
B0 B5 B10
B20 B100 B5 (avoided)
B10 (avoided) B20 (avoided) B100 (avoided)
(B)
Fig. 6.6 Sustainability evaluation and total life cycle impacts of different biodiesel
blends by global hectare: (A) Hibiscus-Vernicia biodiesel in Ha Noi and (B) Pongamia
biodiesel in Quang Ninh.

The findings were interesting that although Ha Noi biodiesel system had
higher sustainable potential in a stand-alone system, as an alternative to
petroleum Quang Ninh biodiesel system became more sustainable than
Ha Noi biodiesel system.

5.6 Sensitivity analyses

Triple I and its parameters were subjected to different conditions (Figs. 6.7
and 6.8) to examine which factors could affect the system. Different analyzed
cases were as follows:
– Cases 1 and 2: 20% decrease and 15% increase in fuel price, respectively.
– Cases 3 and 4: Hibiscus seed yield decreased by 45% and increased to 2.2
tonnes/ha, respectively.