No, there are gas turbines powered by hot gas formed by the burning of kerosene (in aircraft engines) or by natural gas combustion for electrical generation. Gas turbines are also used in some naval ships. Then there are water turbines as used in hydro power. Also, wind can drive turbines.
David Charles Hill has written: 'System identification of gas turbines'
UDI
Ratchet mechanisms used in Gas power plant for Gas Turbine. (like Barring gear in steam turbine).
steam turbines and gas turbines
Wind turbines.
William W. Bathie has written: 'Fundamentals of gas turbines' -- subject(s): Gas-turbines
In the oil and Gas industries , power is generated by electrical generators driven by Gas turbines , Steam turbines , reciprocating engines or in some cases turbo expanders.
10 to 20 %
factorys
three types of combustion chamber are used in gas turbine engine 1) Can type. 1.1 single can ; this again can be of two type a) straight through design b)reverse flow design 1.2 multiple can 2) tubo-annular (can-annular) 3) annular
Gas turbines are typically much smaller and therefore cheaper. Also, steam turbines require a long time for the fuel (coal, oil, uranium) to heat up the water and so changes in power output are slow. Gas turbines rely partly on the burning and instant expansion of gases, meaning that turbines start and stop much faster.