
Walloon Coals: Their Properties and Power Station Performance
By comparison with Dr Christos Spero other coals at Tarong and Swanbank Power Stations, the Walloon coals are pulverised less, that is, to 45 - 55% passing 75ym compared to the usual design value of 70% passing 75ym. By doing this, mill power consumption is kept down to the same level as for coals with high HGI pulverised to a finer size specification, and mill wear is minimised. But in ...