Overall improvements delivered from 2009:

Following many successful studies and implementation of minor projects CR Plus presented a waste heat recovery scheme to the site management team using waste heat from the annealing plant. After further investigations and discussions, the scheme was enhanced to result in both the recovery of heat from the CAPL flue gases by reinstating a redundant heat exchanger and incorporating recovered heat to heat the boiler house feed water; together with interrupting and modifying cooling water circuits. The project was complex because it included the recovery of lower grade heat from cooling water, otherwise distributed to the Central Cooling Towers.

Design (3D drawings); procurement; project management; installation; commissioning and optimisation. Training, operating manuals etc. were also provided

Capture heat from existing CAPL boiler and water heater utilising a redundant heat exchanger originally used to raise steam

A series of heat exchangers, pumps, pipework and controls was used to transfer heat to the softened water feed in a new, recently installed, boiler house.

The net result was a significant gas saving; coupled with modest electricity saving, after the net inclusion of additional pumping systems and controls.