Page 86 - Materials Chemistry, Second Edition

L1644_C02.fm Page 62 Tuesday, October 21, 2003 3:07 PM

v mP (kg) 1.08 5.90 × 10 –1 5.50 × 10 –1 8.55 1.78 × 10 –2 2.58 × 10 –2 4.85 × 10 –4 2.18 × 10 –3 4.32 × 10 –3 1.65 Chair 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0

W1.v mW1 (kg) 0 0 0 0 0 0 0 0 0 –0.49 Manufacture 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 29.3

IE1.v eIE1 (kg) 5.58 × 10 –1 1.63 × 10 –1 1.15 × 10 –1 2.11 3.80 × 10 –3 1.03 × 10 –2 5.35 × 10 –7 7.96 × 10 –6 3.08 × 10 –6 3.22 × 10 –1 Electricity 51.5 27.6 21.0 24.7 21.4 39.7 0.1 0.4 0.1 19.5

Calculation of EL Associated with the Chair as a Function of EL of Input and Output Streams

IP4.v mIP4 (kg) 6.87 × 10 –3 9.10 × 10 –4 5.50 × 10 –4 2.05 × 10 –2 3.60 × 10 –5 4.50 × 10 –5 1.70 × 10 –6 4.63 × 10 –6 6.90 × 10 –8 7.60 × 10 –3 Iron 0.6 0.2 0.1 0.2 0.2 0.2 0.4 0.2 0.0 0.5

IP3.v mIP3 (kg) 8.72 × 10 –2 1.65 × 10 –1 9.50 × 10 –2 8.19 × 10 –1 3.04 × 10 –3 3.39 × 10 –3 4.21 × 10 –4 1.76 × 10 –3 3.51 × 10 –3 3.57 × 10 –2 Fabric 8.0 27.8 17.3 9.6 17.1 13.1 86.7 80.4 81.2 2.2

IP2.v mIP2 (kg) 4.82 × 10 –2 1.03 × 10 –1 9.15 × 10 –2 5.04 × 10 –1 2.20 × 10 –3 2.37 × 10 –3 5.75 × 10 –5 3.44 × 10 –4 7.81 × 10 –4 7.38 × 10 –2 Relative Percentage Contribution of Input and Output Streams in Total EL Assigned to the Chair Foam 4.4 17.5 16.6 5.9 12.4 9.2 11.9 15.8 18.1 4.5

IP1.v mIP1 (kg) 3.85 × 10 –1 1.59 × 10 –1 2.47 x 10 –1 5.09 8.71 × 10 –3 9.75 × 10 –3 4.49 × 10 –6 7.04 × 10 –5 2.43 × 10 –5 7.28 × 10 –1 Wood 35.5 26.9 45.0 59.6 48.9 37.8 0.9 3.2 0.6 44.0

Value units kg kg kg kg kg kg kg kg kg kg Stream kg kg kg kg kg kg kg kg kg kg

TABLE 2.5 EL Coal Natural gas Crude oil CO 2 NO x SO x BOD5 COD NO 3 – Solid waste TABLE 2.6 EL Coal Natural gas Crude oil CO 2 NO x SO x BOD5 COD NO 3 – Solid waste © 2004 CRC Press LLC