Paper Details

ABSTRACT

The evaluation of the new generation of gas turbines is complicated and presents new problems, which have to be addressed. The complete unit will give the required performance when running at the design point (base load performance); that is, when it is running at the particular speed, pressure ratio and mass flow for which the components were designed. The problem then remains to find the variation of performance of the gas turbine over the complete operating range of speed and power output, i.e. part load performance. In practice it is found that the gas turbine operates at various load as per the requirement of power and process steam in a cogeneration mode. So it is necessary to analyze the off-design performance of the gas turbine in cogeneration mode. The on line monitoring of the gas turbine performance is important for the plant engineers to achieve their goals of maintaining high availability of the machinery, minimizing degradation and maintaining operation near design efficiencies. Present work is related the off design performance assessment of the single shaft gas turbine in cogeneration cycle mode.