Steam and Gas Turbines (5 cr)

Objective

The student will be familiar with the operating principles and structure of gas and steam. The student will be familiar with the operating principles and control of turbines, and knows how to maintain turbines. The student will understand the importance of the turbines in energy production.

Content

-Different types of turbines
-Criteria for the dimensioning and performance of compressors and turbines
-The working principle and structures of steam turbines
-The efficiency of steam turbines
-Steam turbine power control, defects and maintenance
-Turbine bypass system, sealing and leakage steam system, ejectors, nozzles and tap
-Condensate and feed water system, pre-heating, reheating and condensing
-Turbine bearing and lubrication system
-Turbine control and assurance system for oil
-Gas turbines and their ideal and actual cycles
-Gas turbine combustion chambers, their performance and emissions
-The combined steam and gas turbine processes, as well as various plant options and connections
-Materials used in turbines
-Vibration and forces of rotating machines

Location and time

Syksy 2023.

Materials

Opettajan osoittama materiaali. Tarkentuu elokuussa 2023.

Teaching methods

Toteutuksen lähiopetus on pääasiassa lähiopetusta suomeksi.
Vierailu voimalaitoksella.
Laskuharjoitukset.
Kotitehtävät.
Harjoitustyöt.

Employer connections

Vierailu voimalaitoksella ja vierailijaluennot.

Exam schedules

Sovitaan aloitusluennolla.

Student workload

Luennot 30 h
Voimalaitosvierailu 4 h
Laskuharjoitukset 20 h
Tentti 3 h
Harjoitustyöt 30 h
Kotitehtävät 20 h
Itsenäinen opiskelu 20 h

Evaluation scale

0-5

Assessment criteria, satisfactory (1)

The student can distinguish between different types of steam turbine and is familiar with the losses of steam turbines.
The student is able to calculate the ideal gas turbine cycle.
The student is able to calculate the ideal and actual steam turbine cycle.
The student is familiar with steam turbine power control methods and failures, and the basics of the maintenance of steam turbines.

Assessment criteria, good (3)

The student understands the importance of velocity triangles in calculating the performance of steam turbine stage, and is able to calculate the turbine efficiencies
The student is familiar with steam turbine power control methods, as well as their starting and stopping procedures.
The student knows the condensate and feed water system, and the operations of steam turbine auxiliary and safety systems
The student is able to calculate the actual gas turbine cycle by taking into account the losses of components
The student is familiar with the causes of faults, and their repair potential, in steam and gas turbines.

Assessment criteria, excellent (5)

The student knows the basics of dimensioning the combustion chamber of gas and steam turbines.
The student is familiar with the combined steam and gas turbine plant process variations, and understands the impact of the selected parameters on performance and economy of use
The student knows the steam turbine power control methods, starting and stopping procedures.
The student is familiar with the causes of faults in steam and gas turbines, as well as their repair potential and inspection.

Assessment criteria, approved/failed

The student can distinguish between different types of steam turbine and is familiar with the losses of steam turbines.
The student is able to calculate the ideal gas turbine cycle.
The student is able to calculate the ideal and actual steam turbine cycle.
The student is familiar with steam turbine power control methods and failures, and the basics of the maintenance of steam turbines.

Assessment methods and criteria

Tentti 60 %
Kotitehtävät 40 %
Harjoitustyöt hyväksytty/hylätty.

Qualifications

The student has the basic mathematical and science skills. The student will understand the thermodynamics of the most important heat engines and devices used in power plants.