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Advantage and Disadvantage of Gas tubine Power Plant. - Interview Questions, Tutorials, Certification Questions

Advantage and Disadvantage of Gas tubine Power Plant.

General

Advantages

  • It is simple in design as compared to steam power station since no boilers and their auxiliaries are required.
  • It is much smaller in size as compared to steam power station of the same capacity.This is expected since gas turbine power plant does no require boiler,feed water arrangement etc.
  • The initial and operating costs are much lower than that of equivalent steam power station.
  • It requires comparatively less water as no condenser is used.
  • The maintenance charges are quite small.

Disadvantages.

  • Since a great part of power developed by the turbine is used in driving the compressor,the net output is low.
  • The overall efficiency of such plants is low because the exhaust gases from the turbine contain sufficient heat.
  • The temperature of combustion chamber is quite high so that its life is comparatively reduced.

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