This paper presents a brief review on recent advances in gas turbine t
echnology and various means for reduction in specific fuel consumption
. An intercooled recuperative combined cycle, with closed-loop steam c
ooling breaks the 60% barrier in thermal efficiency. An innovative che
mical gas turbine is in development to achieve a thermal efficiency of
over 60%. Various means for reduction in specific fuel consumption ar
e discussed. (C) 1997 Elsevier Science Ltd.