Effective water treatment and water analysis can minimise scale build up on boiler tubes and heat
exchangers that reduces heat transfer efficiency (see Table 1).
Table 1: Energy loss due to scale deposits6
Scale thickness (mm) | Fuel loss (per cent total loss) |
0.4 | 1 |
0.8 | 1 |
1.2 | 3 |
1.6 | 3.9 |
Engineering solutions, such as pre-heating the boiler feed tank, can help remove dissolved oxygen (that may cause corrosion), reducing the need for oxygen scavenging chemicals.
