Useful abbreviations:

• F1 mode - Low Temperature Mode (primary fuel)
• F2 mode - High Temperature Mode (secondary fuel)
• HiTAC - High Temperature Air Combustion
• HRS - High-cycle Regenerative System
• HTB - High Temperature Burner
• HTB-WG - High Temperature Burner - Waste Gas
• LHV - Lower Heating Value
• SNCR - Selective Non-Catalytic Reduction)
• IED - Directive IED 2010/75/EU (Industrial Emission Directive) concerning industrial emissions in European Union.
• BAT - Best Available Techniques. The standard used for assessment of size of emission for the plants in European Union.