The Royal Commission power, desalination and seawater cooling (PD&SC) plant located in Madinat Yanbu Al-Sinaiyah, Saudi Arabia, includes eight MS-7001 E frame 7 gas turbine generators (GTGs). The GTGs are used in cogenerating electricity and process steam primarily required for desalinating seawater by a multi-stage flash (MSF) evaporation process. This paper describes the operating experience of the GTGs in a simple cycle and a cogeneration mode coupled to heat recovery steam generation. The significant problems, countermeasures and the GTG and heat recovery steam generator (HRSG) reliability, availability and performance are also discussed in the paper.

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