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Led by Senior Process Plant Engineer Simulacrum
Boiler operations and steam management from boiler types and heat transfer through combustion, burners, instrumentation and control (drum level, combustion, BMS), water treatment and blowdown, efficiency calculation, maintenance, and troubleshooting.
Led by Senior Process Plant Engineer Simulacrum
The question
The two fundamental boiler types — fire-tube and water-tube — differ in which fluid is inside the tubes, and this determines the pressure rating, capacity, and application. This module covers fire-tube boilers (gas inside tubes, shell as pressure vessel, limited to ~25 bar), water-tube boilers (water inside tubes, natural and forced circulation, up to 170+ bar), the six key components (furnace, tube banks, steam drum, superheater, economiser, air preheater), the three heat transfer modes in the boiler context, and steam properties — sensible heat, latent heat, and superheat.
Outcome
The student can describe both boiler types and their advantages, name and describe six components, explain the three heat transfer modes in boilers, and define sensible heat, latent heat, and superheat. (Boiler types, components, and heat transfer)
Sub-units
Led by Senior Process Plant Engineer Simulacrum
The question
The boiler is a combustion machine — the efficiency of combustion determines fuel consumption, emissions, and operating cost. This module covers combustion fundamentals (stoichiometry, excess air, flue gas O₂ and CO analysis), three fuel types and their characteristics, four burner types (gas, oil, dual-fuel, low-NOx with staged combustion), the startup sequence (NFPA 85 purge, pilot ignition, main flame establishment, flame detection time window), normal operation and load following, shutdown procedures, and the furnace explosion hazard.
Outcome
The student can explain combustion stoichiometry and excess air, describe four burner types, trace the startup sequence with NFPA 85 purge, and explain the MFT trigger conditions. (Combustion, burners, and operation)
Sub-units
Led by Senior Instrumentation & Control Engineer Simulacrum
The question
The boiler control system manages the most critical balance in the plant — energy input versus steam output. This module covers drum level control (one-element, two-element, three-element — and why the shrink-and-swell phenomenon defeats one-element control on rapid load changes), combustion control (cross-limited fuel-air ratio ensuring the furnace is never fuel-rich), oxygen trim for combustion optimisation, steam temperature control via the desuperheater, and the burner management system as the independent safety system managing ignition, flame monitoring, and the main fuel trip.
Outcome
The student can describe all three drum level strategies and the shrink-and-swell phenomenon, explain cross-limited combustion control, describe the oxygen trim loop, and describe the BMS safety function. (Boiler instrumentation and control)
Sub-units
Led by Senior Process Plant Engineer Simulacrum
The question
The water entering the boiler must be treated to prevent scaling, corrosion, and carryover — each of which can cause tube failure. This module covers the external treatment sequence (softening, demineralisation, deaeration to < 7 ppb oxygen), internal treatment chemicals (phosphate for calcium control, caustic for pH, oxygen scavenger for residual O₂), blowdown (intermittent and continuous with TDS control and heat recovery), steam quality (dryness > 99.5%, TDS < 0.5 ppm for turbine service), carryover causes and prevention, and the steam-condensate cycle with contamination detection.
Outcome
The student can describe the external and internal treatment programmes, explain blowdown TDS control and heat recovery, define steam quality parameters, and trace the steam-condensate cycle. (Water treatment, blowdown, and steam quality)
Sub-units
Led by Senior HSE Engineer Simulacrum
The question
Boiler efficiency — the fraction of fuel energy transferred to steam — determines operating cost, and a 1% improvement saves hundreds of thousands annually on a large industrial boiler. This module covers efficiency calculation by both direct and indirect methods, the major losses (stack, radiation, blowdown, unburned fuel) and the control measures for each, annual inspection scope (water-side scale and corrosion, gas-side erosion and soot), tube cleaning and soot blowers, troubleshooting (low pressure, high stack temperature, fluctuating drum level), and boiler safety — safety valves, low-water cutoff, and inspection code certification.
Outcome
The student can calculate efficiency by both methods, identify the major losses and their controls, describe the annual inspection scope, diagnose three common problems, and describe the safety valve and LWCO systems. (Efficiency, maintenance, and troubleshooting)
Sub-units