Life Cycle Assessment of Fiber Composites_final__rättad

The table 8 shows the data for the BWSSS. The glue laminated structure is
taken as the balsa core is made from balsa wood and wood is cut, glued and
laminated so it can be assumed that this data is equally valid for the balsa core.
It is a general data for any kind of wood that is processed just like the balsa
core. Rest of the data is taken from Sima pro according to the requirement of
the ship structure.
Table 9. Calculations for BWSSS of the ship
The weight of the BWSSS is = 440 tons (Safedor , 2003)
Total weight carried per year = 2107000 tons/year
Over a lifetime it would be carrying = 52675000 tons (2107000x25)
The ship travels = 308000 km/year (880 km/day x 350 day/yr)
Distance covered over a lifetime it is 7700000 km. (308000 x 25)
Total tkm over lifetime = 405597500000000 tkm
Per ton km impact of the total weight of the BWSSS would be = 1 unit of super structure/
Tons carried over lifetime x distance covered over lifetime
= 2.465E-15
In the case of operation per ton km consumption of the fuel for BWSSS would be = 1.100
E-9 (unit / tons transported lifetime x distance covered over lifetime)
In the case of maintenance it is assumed that because the sandwich structures
are strong and have no impact of environment upon them so effects like
corrosion etc cannot be seen and therefore they have no maintenance problem
(Jiven, et.al 2004). The maintenance is not considered for both the BWSSS and
the PVC Foam Super Structure.
At the end we have considered three waste management scenarios have been
considered which are
Table 10. Data for Recycling of BWSSS
Material Amount Process
Wood waste 3.40E-10ton Recycling wood(sub)
Glass waste 2.16E-13ton Recycling glass/RER S
Glass waste 1.40E-13 ton Recycling glass (sub)
Plastic waste 2.16E – 13 ton Recycling plastic (excluding PVC) B250
The data for recycling of mineral wool was not available.
Table 11. Data for Incineration of BWSSS
Material Amount Name of process
46