Gas turbine plant with preheated combustion air and corresponding operating method

摘要

A gas turbine engine plant includes an air heating system (68). The air heating system (68) is configured to heat air (72) with waste heat generated by a waste heat source (22,32,124,126,138) external to a turbine engine (12). The air heating system (68) is also configured to deliver the heated air (72) to a compressor (20) of the turbine engine (12).