Page 141 - Materials Chemistry, Second Edition

3.4 Procurement, Origin and Quality of Data 125

Table 3.7 Consideration of generic data record of the electricity grid in Germany in the unit
process ‘Punching of Steel Sheets’.

Energy supply electricity grid Germany Functional unit:
1 kJ electrical energy
Multiplier:1.5 MJ electrical energy per piece Data for unit process

Input Quantity Unit Factor Quantity Unit

Cumulated energy demand (CED)
CED (nuclear energy) 1.08E+00 kJ 1.5 1.62E+00 MJ per piece
CED (hydropower) 6.07E–02 kJ 1.5 9.11E–02 MJ per piece
CED (fossil total) 2.28E+00 kJ 1.5 3.42E+00 MJ per piece
CED (non-specific) 6.48E–07 kJ 1.5 9.72E–07 MJ per piece
Raw materials in stores
Source of energy
Natural gas 5.57E–06 kg 1500 8.36E–03 kg per piece
Oil 1.45E–06 kg 1500 2.18E–03 kg per piece
Brown coal 1.08E–04 kg 1500 1.62E–01 kg per piece
Hard coal 3.70E–05 kg 1500 5.55E–02 kg per piece
Non-energy carriers
Limestone 1.46E–06 kg 1500 2.19E–03 kg per piece
Water kg per piece
Cooling water 6.93E–03 kg 1500 1.04E+01 kg per piece
Water (process) 1.49E–05 kg 1500 2.24E–02 kg per piece
Sum CED 3.42E+00 kJ 5.13E+00 MJ per piece
Sum mass flow 7.10E–03 kg 1.06E+01 kg per piece

Data for unit process
Output Quantity Unit Factor Quantity Unit

Wastes
Wastes for disposal
Ash and slag 7.42E–06 kg 1500 1.09E–02 kg per piece
Sewage sludge 1.10E–09 kg 1500 1.65E–06 kg per piece
Hazardous waste 9.40E–09 kg 1500 1.41E–05 kg per piece
Waste destined for recovery
Ash and slag 4.12E–06 kg 1500 6.18E–03 kg per piece
Wastes unspecified 1.87E–08 kg 1500 2.81E–05 kg per piece
Emissions into air
Dust 1.25E–07 kg 1500 1.88E–04 kg per piece
Inorganic compounds
Ammonia 1.14E–09 kg 1500 1.71E–06 kg per piece
Hydrogen chloride 3.37E–08 kg 1500 5.06E–05 kg per piece
Dinitrogen monoxide 1.34E–09 kg 1500 2.01E–06 kg per piece
Hydrogen fluoride 4.65E–09 kg 1500 6.98E–06 kg per piece
(continued overleaf)