Typical curriculums

➀ USC-Boiler Maintenance

(Standard period:3.0days)

– Where is the weak point of coal-fired boiler? –

Contents

Outline of boiler and attached facilities
Selection procedure and consideration of boiler material (Heat transfer surface , maximum temperature and tube material etc.)
Maintenance (Criteria, inspection item, planning of major inspection)
Test items during test operation
Measures to improve boiler strength and its examples
Effects by boiler operation methods
Equipment specification and its basis for decision making about actual Ultra Super Critical pressure boiler note:note:
Misumi power plant (Chugoku EPCO)
Examples of trouble and its countermeasures

The participants will learn the basic knowledge for boiler maintenance such as boiler structure and damages caused by aging. They will also learn some points for long-term and efficient use.

Promote understanding using cut models

The participants can learn by using the case of actual plant

➁ Steam Turbine Maintenance

(Standard period:2.0days)

– Where do you check during major inspection? –

Contents

Outline of steam turbine and attached facilities
Implementation system for major inspection
Work schedule for major inspection
Inspection items and countermeasures for defect
Process and quality management for major inspection
Improvement examples for shortening the inspection period
Procedure of disassemble and inspect
Examples of trouble and its countermeasure

The participants will learn the basic knowledge required for maintenance such as turbine structure and principles.
Then they will understand the management standards and design values which are necessary knowledge for judging quality with the results on various test and measurement.

Learning about standards of maintenance

Learning about some examples of trouble and its countermeasure

➂ Coal Handling

(Standard period:3.0days)

– What is needed to handle coal deliberately and safety? –

Contents

Overview of coal handling facilities
Equipment specification and its basis for decision making
Standards of coal acceptance
Operational standards of the coal storage facility
Coal recirculation system
Coal blending technology
Disaster prevention and environmental measures of coal facility
Coal properties evaluation
(influence of coal properties on boiler)
Examples of trouble and its countermeasures

The participants will learn coal blending technique and precautions regarding coal transportation and storage facilities. They will also learn trouble cases and countermeasures for restoration and prevention.

The tour of the actual coal handling facilities of Chugoku EPCO

Learning examples of trouble and its countermeasures.

➃ Vibration Basic Technology

(Standard period:3.0days)

– Do you know vibration adjustment methods of rotary facilities? –

Contents

Principle of occurrence of vibration
Item of vibration measurement and the way of measurement
Causes, features and measures of vibration
Basic knowledge of balancing
Practices with model rotor

The participants will learn the mechanism of vibration.
Then they will learn the vibration analysis and adjustment by balancing through the practices.

Theoretical study of vibration phenomenon

Practice with model rotors

➄ Non-Destructive Testing

(Standard period:1.5days)

– Essential technology for finding the defect at inner or outer surface of material –

Contents

Kind of non-destructive testing and each characteristics
Type and cause of the defect
Principles and characteristics of each testing method (RT, UT, PT, MT)
Practice(PT, MT, UT)

Non-Destructive testing techniques are frequently used in thermal power plants. The participants will learn these test principle and characteristics.
Then they will practice non-destructive testing to develop their understanding.

Differences and features of each testing method

Practice of MT

Practice of UT

➅ Remaining Life Assessment

(Standard period:2.5days)

– How do you determine when the equipment should be replaced? –

Contents

Basic knowledge of metal
Aging mechanism of metal
Kinds of the assessment method and the way of calculation
Scope of application and target part of the assessment
Exercises(Calculation of Remaining Life)
Actual assessment cases of boilers and turbines
Strength improvement measures for each part of boiler and turbine
Practice(Replica taking, microscopic observation)

The participants will learn the mechanisms of aging of high temperature equipment such as boilers and turbines, and they will also learn characteristics and evaluation method of remaining life assessment.
In addition, they will make a metal replica from test peace and evaluate remaining life with the replica.

Diagnosis of creep damage

Replica making

Observation of creep voids

➆ Gas-Turbine Combined Cycle Power Plant

(Standard period:5.0days)

– Management techniques of Gas-turbine hot parts –

Contents

Outline of Gas-Turbine Combined Cycle power plant
Overview of Gas-Turbine Control(e.g. Rotation speed, output, frequency, inlet temperature)
Inspection items during major inspection
Characteristics of hot parts(Cooling structure, coating, material, etc.)
Typical defect and its treatment
Example of troubles and its countermeasures(COMP, GT, HRSG and ST)
Management approach(Time management, Numbers of repair management and Condition management)

The participants will learn basis of gas-turbine, hot parts management techniques and various trouble cases.
In addition, they will develop their understanding through the tour of actual GTCC power plant under major inspection.

Learning basis of GTCC

Tour of the site under major inspection

➇ Environmental Conservation Facilities

(Standard period:2.0days)

– In order to achieve harmony with the natural environment –

Contents

History and efforts of Japanese pollution prevention
Overview of De-NOx equipment(SCR:Selective Catalytic Reduction method)
Matters to be considered regarding De-NOx equipment design
Overview of De-sulfurization equipment(FGD equipment)
Management items of running FGD equipment

The participants will learn the basic matters concerning environmental measures equipment of the latest technology of Japan, such as denitrification, desulfurization and waste water treatment equipment.
In addition, to deepen their understanding, the tour of actual power plant in operation will be carried out.

Learning about FGD

Site visit of actual Japanese Power Plant

➈ Boiler Water Quality Management

(Standard period:3.0days)

– Do you know that if the water quality were bad what impacts have occurred on the boiler? –

Contents

Industrial water pretreatment system and its treatment method
Overview of desalting equipment
Type and performance of ion exchange resin
Management of ion exchange resin
Overview and characteristics of condensed water demineralizer
Characteristics of water treatment method(Low-phosphate treatment, Volatile material treatment, oxygen treatment)
Water quality management guidelines(Standard, test items and test frequency)
Water treatment of seawater system
Water quality management in case of seawater leakage
Overview of chemical cleaning
Example of troubles and countermeasures

The participants will learn the basic knowledge of desalting equipment and ion exchange resin.
They will also learn practical knowledge such as characteristics of each water treatment method and water quality management method.

Site visit of actual Japanese Power Plant

➉ Efficiency Management Technique

(Standard period:1.0days)

– How to maintain the thermal efficiency of your plant –

Contents

Thermal efficiency management method(Target value management, Performance test)
Efforts to improve thermal efficiency of the power plant
Calculation method of boilers and turbine efficiency
Loss factors and countermeasures of boilers and turbines
Efficiency improvement measures of boilers and turbines
Notes regarding the efficiency management of coal-fired plant(Coal weighing error, Coal adhering moisture)

The participants will learn efficiency loss factor and calculation method of boiler and turbine efficiency.
They will also learn efficiency improvement measures to develop their understanding of efficiency management.

Understanding the energy loss factor and calculating the efficiency

Understanding the relationship between the properties and the calorific value of coal

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