Recent developments in gas turbines encourage their use in utility power ge
neration in many parts in the world. The addition of a heat recovery steam
generator (HRSG) to a gas turbine to utilize its waste heat finds good appl
ication in many of the Arabian Gulf countries to desalt seawater from the s
team generated by the HRSG. Also the addition of a steam turbine to utilize
this steam, to form what is called a combined power cycle, greatly increas
es the efficiency of power generation. The use of a combined cycle as a cog
eneration power-desalting plant looks very attractive as it saves fuel in p
roducing both electric power and desalted water.