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WES Trainings

Boiler & steam generation system

Course Outline

Day - 1
  • Boilers evolution, types and applications
  • Firetube boilers
  • Water-tube boilers
  • Applications
  • Boiler options
  • Selection of boiler type
  • Firetube boilers
  • Composite boilers
  • Water-tube boilers
  • Specification of boiler plant
  • Operating conditions
  • Number and output of boilers
  • Fuels
  • Space constraints
  • Chemical aspects of combustion
  • Density of gases and gaseous mixtures
  • The chemical composition of fuels
  • Combustion calculations
  • Gaseous fuels
  • Products of combustion
  • Solid and liquid fuels
  • Calorific value (specific energy)
Day - 2
  • Physical aspects of combustion
  • Gaseous and liquid fuels
  • Ignition
  • Flame stability
  • Containment of the flame within the furnace
  • Unburned particles and gases
  • Excess air
  • Air preheat
  • Heat transfer, fluid flow and water circulation
  • Heat transfer: radiation, conduction, and convection
  • Application of heat transfer formulae to boiler design
  • Temperature difference
  • Practical applications
  • Extended surfaces
  • Practical examples
  • Pressure drop in boiler flow systems
  • Water treatment and feedwater systems
  • Sources of raw water
  • Steam purity and carryover
  • Boiler blowdown
  • Objectives of water treatment
  • Impurities causing deposits
  • Impurities causing corrosion
  • Water treatment processes
  • De-aeration
  • Chemical dosing
  • Establishing the capacity of feedwater treatment plant and feed systems
  • Feed and boiler water testing
  • Off-load storage of boilers – waterside protection
  • Boiler waterside cleaning
Day - 3
  • Auxiliary equipment
  • Pumps
  • Steam boilers
  • Hot-water boilers
  • Fans
  • Fan performance
  • Output control
  • Design criteria
  • Chimneys
  • Heat recovery
  • Economisers
  • Airheaters
  • Sootblowers and boiler cleaning
  • Instrumentation and controls
  • Purposes of instrumentation and controls
  • Operating media
  • Instrument and control diagrams
  • Boiler pressure measurement, indication and relief
  • Combustion control
  • Water level indication, measurement and control
  • Furnace pressure control
  • Temperature measurement
  • Boiler water quality
  • Steam temperature control
  • Combustion safety (burner management)
  • General comments
  • Safety and environmental requirements
  • Standards
  • Safety in operation
  • Boilers and the environment
  • Smoke
  • Oxides of sulphur and nitrogen
  • Grit and dust
  • Smutting
  • Noise
Day - 4
  • Fire-side deposits and corrosion
  • Deposits: coal firing
  • Control of deposits from coal firing
  • Deposits: oil firing
  • Control of deposits from oil firing
  • Corrosion
  • High-temperature corrosion
  • Low-temperature corrosion
  • Thermal testing
  • Boiler efficiency
  • The measurement of boiler efficiency: standards
  • Notes on test procedure
  • Numerical example
  • Firetube boilers – design for output, efficiency and reliability
  • Output and operating conditions
  • The furnace
  • The reversal chamber
  • The tubes
  • Water-tube boilers – design for output, efficiency and reliability
  • Output and operating conditions
  • Efficiency and fuel consumption
  • Determination of boiler dimensions
  • Furnace dimensions
  • Superheaters
  • Convection evaporative heat-transfer surfaces
  • Heat-recovery equipment
  • Constructional features
  • Internal access
  • Draught plant
Day - 5
  • Firing appliances
  • Firing appliances for firetube boilers
  • Firing appliances or combustion equipment for water-tube boilers
  • Oil burners
  • Gas burners
  • Boilers maintenance, inspection and troubleshooting
  • Scale and soot can cost
  • Annual cleaning
  • Analyse combustion
  • Boiler Maintenance
  • Deaerator maintenance
  • Boiler blowdown
  • Fuel controls
  • Stack and combustion tests
  • Water level controls
  • Waterside care
  • Furnace, tubes, and tubesheets
  • Refractory
  • Gaskets
  • Boiler inspection
  • Maintaining the boiler
  • Maintaining the burner
  • Maintaining the controls
  • Maintaining the system
  • Course closure
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