Print ISSN: 1681-6900

Online ISSN: 2412-0758

Keywords : combined power plant

Exergy Losses Calculation for a 125 MW Combined Power Plant

Falah F. Hatem

Engineering and Technology Journal, 2009, Volume 27, Issue 2, Pages 386-394

Theoretical exergy analysis is carried out for different components of a
combined power plant which consists of a gas turbine unit, waste heat recovery
boiler without extra fuel consumption and steam turbine unit. The results
pinpoint that more exergy losses occurred in the gas turbine combustion
chamber. Its reached 33% of the consumed fuel exergy while the exergy losses
in other plant components are between 1% - 5% of the consumed fuel exergy
.This paper also considered the effect of the pressure ratio, maximum
temperature, boiler pressure and ambient temperature on the exergy losses in the
plant, there are a clear effects in the exergy losses when changing pressure ratio,
maximum temperature and boiler pressure.