where are gas turbines used?
In marine applications, it is widely used on board Navy ships, fast RO/RO ships, fast Ferries and Cruise ships due to its high power-to-weight ratio and the ability to get underway quickly. Manufacturers: Rolls-Royce; Siemens AG, General Electric or MAN Turbomachinery.
WHRS
Waste heat recovery system
A marine gas turbine consists of two parts
A gas generator
A power turbine
provide gas at high pressure and temperature
Main elements: an air compressor, the combustion chamber(s) and a gas high-pressure turbine (HP). The HP turbine could be radial, axial, impulse or reaction type, single or multi - stage.
deliver useful work to propeller by expanding the gas
Alle Schritte
(1–2): Isentropic compression, air compression, p increasing, v decrease
(2–3): Isobaric heat addition at constant pressure
(3–4): Isentropic expansion v increase, p decrease, T decrease
(4–1): Isobaric heat rejection/removal.
The main differences between the Brayton cycle and the real gas turbine cycle
the losses that occurs during the process
ideal simple gas turbine cycle
Brayton cycle
CODOG
Zuletzt geändertvor 20 Stunden
