Chapter 4

Natural Gas–fired Gas Turbines and Combined Cycle Power Plants

Abstract

Gas turbines can burn a range of liquid and gaseous fuels but most burn natural gas. Power plants based on gas turbines are one of the cheapest types of plant to build, but the cost of their electricity depends heavily on the cost of their fuel. Two types of gas turbine are used for power generation: aero-derivative gas turbines and heavy-duty gas turbines. The former are used to provide power to the grid at times of peak demand. The latter are most often found in combined cycle power stations. These are capable of more than 60% efficiency. There are a number of ways of modifying the gas turbine cycle to improve efficiency, including reheating and intercooling. ...

Get Power Generation Technologies, 2nd Edition now with the O’Reilly learning platform.

O’Reilly members experience live online training, plus books, videos, and digital content from nearly 200 publishers.