Enhanced generator capability in hot ambient temperatures

A heat exchange circuit cooperable in a gas turbine and a generator, the gas turbine including a compressor, one or more combustors, and a turbine, the heat exchange circuit comprising:

• a generator cooler circuit disposed upstream of the compressor, the generator cooler circuit circulating a cooling medium to cool the generator;
• a cooling source containing fuel, the cooling source being coupled with a supply line that delivers the fuel to the one or more combustors;
• and
• a water circuit circulating water and including a first section in a heat exchange relationship with the generator cooler circuit and a second section in a heat exchange relationship with a section of the supply line,
• wherein the water in the water circuit is cooled by the fuel in the supply line, wherein the cooling medium in the generator cooler circuit is cooled by the water in the water circuit, and wherein the fuel is heated by the water in the water circuit, the supply line directing the heated fuel to the one or more combustors of the gas turbine.

A gas turbine comprising:

• a compressor;
• a combustor receiving compressed air from the compressor;
• a turbine receiving combustion gases from the combustor;
• a generator sharing a rotor with the turbine;
• a fuel source in fluid communication with the combustor by a fuel supply line, wherein the combustor injects fuel from the fuel source into the compressed air from the compressor and ignites the mixture to produce the combustion gases;
• and
• a heat exchange circuit, including:
• a generator cooler circuit disposed upstream of the compressor, the generator cooler circuit circulating a cooling medium to cool the generator, and
• a water circuit circulating water and including a first section in a heat exchange relationship with the generator cooler circuit and a second section in a heat exchange relationship with a section of the fuel supply line,
• wherein the water in the water circuit is cooled by the fuel in the supply line, wherein the cooling medium in the generator cooler circuit is cooled by the water in the water circuit, and wherein the fuel is heated by the water in the water circuit, the supply line directing the heated fuel to the combustor.