Page 263 - Materials Chemistry, Second Edition

Hydropower Life-Cycle Inventories 253

Water

Cement
production
Concrete
Production
Gravel

Sand CONSTRUCTION
Rocks

Wood
Steel
Diesel Earth production
production works
Copper
Explosive Equipment production
production manufacture
Oil
production

OPERATION

OBS: Transport operations were included, but are not indicated on the figure;
processes represented with dotted lines are not included;
Fig. 2 Simplified product system boundary for Itaipu power plant LCI (Ribeiro 2003)

0
Itaipu s LCI data collection was performed in two sequential steps: Itaipu
Power Plant data; and material and energy life-cycles data. Both are described in
more details in the following paragraphs.
Itaipu Power Plant data
The first part of data collection was the adjustment of the product system model
0
from international studies, to Itaipu s reality.
In order to obtain information for the essential considerations, personal inter-
views were conducted during a field trip to the dam, with some civil work spe-
0
cialists who had worked in Itaipu s project and construction. The information
collected by interview was completed by an extensive literature review carried out
on the first part of the study. This included power plant construction reports (from
1977 to 2003); lists of materials and equipment; original blueprints; reports from
the different engineering companies that worked in the power plant project and
construction; and technical articles published on a monthly civil engineering
magazine (editions from 1976 to 1983). All of these data, together with the pre-
vious collected information, made it possible to conduct the necessary calcula-
tions, summarized in the annexes of the original study (Ribeiro 2003).