Page 407 - Practical Design Ships and Floating Structures
P. 407
3 82
be properly equipped with adequate knowledge on energy and environment so as to understand and
contribute to resolving the local, regional and global environmental challenges.
[Fx;&
'IRON ORE
'COKING COAL MATERIALS
STEEL INDUSTRY
i
ENERGY
Figure 1 Indirect Energy used in Shipbuilding
2 TOTAL SHIPBUILDING SYSTEM
The total shipbuilding system is composed of several activities involving transportation, prefabrication,
fabrication, post fabrication, outfitting, ship delivery and post delivery operations. The main elements
of these activities involving environmental impacts are associated with the different materials used in
ship construction, energy consumed in the various stages of fabrication, transport, construction, testing,
maintenance and repair.
SHIPBUILDING
Figure 2: Demands for Direct Energy
3 ENERGY USED IN THE SHIPBUILDING INDUSTRY
The energy demands for the shipbuilding industry could be divided into direct and indirect energy.
The indirect energy is required for the manufacture and production of steel plates and sections,
manufacture of main and auxiliary engines, manufacture of equipment and fittings, production of
welding electrodes and coils, production of paints, etc., see Figure 1. The direct energy is required for
