Abstract
In this paper, the first and second laws of thermodynamics have been utilised to evaluate the performance of intercooled reheat regenerative gas turbine cogeneration plant. The effects of overall pressure ratio, cycle temperature ratio, pressure losses, and process steam pressure on energetic and exergetic efficiencies have been investigated. The results indicate that most of the exergy destructions occur in the Combustion Chamber, which represent about 70% of total exergy destruction in the overall system. The compressor and gas turbine losses are shown to have a relatively small influence on system performance parameters. Energetic efficiencies decrease with increase in process steam pressure, but the exergetic efficiency is constant with the same.
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