HRSG – Auxiliary Equipment and Systems

Learning objectives

• Recall the purpose of the following systems:
  • Supplementary firing
  • Bleed Air
  • Deaerator
  • Attemperator
  • Sampling
  • Dosing
  • Selective Catalytic Reduction (SCR)
  • CO catalyst
  • Nitrogen
• Identify the general location of the following systems:
  • Supplementary firing
  • Deaerator
  • Selective Catalytic Reduction (SCR)
  • CO catalyst
• Relate the operating conditions in which supplementary firing would be impactful
• Describe the mechanism by which deaerators fulfill their purpose
• List some qualities for which analyses are frequently performed in the steam/water cycle
• State why SCR systems and CO catalyst systems have been put in place
• Relate what operating conditions a nitrogen system would be used in

Course overview