– Describe the process of operating a high-pressure boiler at low pressure.Our effective filtering solutions protect the turbine’s bearings and shafts when operating at high temperatures and pressures by decreasing lubricant contaminants that can lead to catastrophic and costly events. – Compare natural circulation boilers with forced circulation boilers, and explain how pressure and temperature affect the type of boiler used. – Read a steam table properly and apply its information to a boiler system. – Explain the relationship between temperature and pressure and explain why superheated steam has a higher quality than saturated steam. Temperature/pressure/volume relationships Superheating Boiler water circulation Conserving energy Blowdown Makeup water Learning Objectives: – Trace the flow of water and steam through the boiler system. – List the ways in which combustion efficiency is measured. – Describe the three types of coal firing systems.
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– Describe how to interpret and adjust a flame's characteristics in coal, oil, and gas burners. – Explain the combustion process in detail. – Summarize the properties of oil and natural gas fuels. – List the properties that are tested in a coal analysis. Lesson 4 - Combustion and How It Works Topics:Ĭoal, oil and natural gas Chemistry and efficiency of combustion Burners Flame color and adjustment Coal firing Ash analysis Learning Objectives: – Identify the different ranks of coal and describe how the makeup of coal affects its heating value. – Summarize maintenance procedures for boiler auxiliaries such as pumps, valves, motors and electric circuits. – Explain how to calibrate and clean boiler control systems and maintain compressed air systems. – List the primary functions of boiler control systems and describe the three common types. – Describe how refractory should be maintained and list the problems that can occur if it is not properly maintained. – Explain why both hot-end and cold-end corrosion occur in a boiler, and tell what practices help prevent corrosion. – Describe how scale forms on boiler surfaces and list the three common removal methods. Soot and scale removal Corrosion Calibration Cleaning Maintaining auxiliaries Valves Piping Pumps Fans Controls Stacks and cyclones Learning Objectives: – Explain how the two types of sootblowers remove soot and slag from heat exchange surfaces. – List practices that aid in energy conservation in all areas of the power plant. – Describe the factors that affect boiler efficiency, as well as auxiliary equipment efficiency. – List the problems associated with wastewater disposal and describe how these problems are overcome. – Define blowdown and explain its importance in boiler operation. – Explain the different processes by which water is treated for use in a boiler. – Describe the characteristics by which boilers are classified. Types and characteristic of boilers Water treatment Boiler and cooling tower blowdown Wastewater disposal Thermodynamic efficiency Learning Objectives: – Compare the two basic types of boilers. – Summarize the interrelationship of temperature, volume, and pressure in a gas. – Describe the methods of heat transfer and the types of effects heat transfer can have on a material. – Explain the principles of temperature and pressure measurement and describe the four scales on which temperature is measured.
– Explain the process of combustion and list the three elements necessary for combustion to occur. Lesson 1 - Transforming Energy into Work Topics:Įnergy and matter Fuels Combustion Temperature and pressure Heat transfer Sensible and latent heat Enthalpy Learning Objectives: – Define energy and describe the main forms of energy encountered in a power plant.
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