Estimate for interstage water injection in air compressor incorpo-rated into gas-turbine cycles and combined power plants cycles
A.M. Kler, Yu.B. Zakharov, and Yu.M. Potanina
Melentiev Energy Systems Institute SB RAS, Irkutsk, Russia
E-mail: contain@mail.ru, kler@isem.irk.ru
Keywords: comprehensive optimization, GT and CCPP cycles, gas turbine flowpath, water injection into air compressor, economy and power efficiency
Pages: 483– 491
Abstract
The objects of study are
the gas turbine (GT) plant and combined cycle power plant (CCPP) with
opportunity for injection between the stages of air compressor. The objective
of this paper is technical and economy optimization calculations for these
classes of plants with water interstage injection. The integrated development
environment “System of machine building program” was a tool for creating the
mathematic models for these classes of power plants. Optimization calculations
with the criterion of minimum for specific capital investment as a function of
the unit efficiency have been carried out. For a gas-turbine plant, the
economic gain from water injection exists for entire range of power efficiency.
For the combined cycle plant, the economic benefit was observed only for a certain
range of plant’s power efficiency.
DOI: 10.1134/S0869864317030155
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