582-06 - Combined Cycle Steam and Feedwater Operating Principles
Learning objectives
- Describe the system flow path of a basic single-pressure cycle
- Describe the function of the following components of a HRSG: economizer, evaporator, and superheater
- Explain the concept of a pinch point
- Describe the system flow path of a dual-pressure (HP and LP) cycle
- Describe the system flow path of a triple-pressure (HP, IP, and LP) cycle
- Explain the purpose of a pegging steam line
- Describe the system flow path of a triple-pressure cycle with reheat
- Explain the operation of a HRSG feedwater pump
- Describe the function of a steam attemperator
Course overview
Combined cycle power plants need a constant supply of water to produce steam in a heat recovery steam generator, or HRSG. The feedwater pumps supply water to the HSRG where it produces steam sufficient for driving a turbine generator.
A typical HRSG consists of three pressure modules, each of which can produce a different steam pressure. These steam pressures correspond to the low pressure, intermediate pressure, and high pressure stage of the steam turbine.
The Combined Cycle Steam and Feedwater Operating Principles training course describes the feedwater and steam flow paths in a typical combined cycle plant. It also explains the HSRG design principles that govern plant operations. This online training course covers:
- HRSG steam production
- Common HRSG designs
- HRSG feedwater systems
This course is part of the Combined Cycle Power Plant Operations series.
The individuals involved in the development and promotion of this course do not receive any compensation or financial benefits outside of their regular employment for their work on this course.
- 20 minutes
- Format: Online Interactive
- English