Table 4 Total cost saving per cylinder from raw materials and power consumption saved.
Parameters | Plated materials saved in kg | Cost in US$ | Power consumption, kA* | Cost in US$* |
|---|---|---|---|---|
Copper-plating | ||||
EME-cylinder | 0.87 ± 0.03 | 8.35 ± 0.30 | 0.74 | 0.074 |
LE-cylinder | 0.48 ± 0.02 | 4.70 ± 0.29 | 0.42 | 0.042 |
Saving | 0.38 ± 0.02 | 6.65 ± 0.29 | 0.32 | 0.032 |
Chrome-plating* | ||||
EME-cylinder | 0.045 | 0.67 | 0.67 | 0.067 |
LE-cylinder | 0.020 | 0.30 | 0.42 | 0.042 |
Saving | 0.024 | 0.37 | 0.25 | 0.025 |
Total cost of Cu and Cr-plated EME cylinder | 9.16 | |||
Total cost of Cu and Cr-plated LE cylinder | 5.08 | |||
Total saving in Cu and Cr-plated LE cylinder | 4.08 | |||
