Thermal Efficiency of Three-Cycle Utilization-Type Steam-Gas Units

Research output: Contribution to specialist publicationArticle

13 Citations (Scopus)


This is a study of the efficiency of combined-cycle plants (steam-gas units) operating in three cycles– a Brayton gas-turbine cycle and two Rankine steam-turbine cycles, one of which runs on water vapor and the other on the vapor of a low-boiling substance. An analytic expression is obtained for the dependence of the internal efficiency of a three-cycle combined cycle plant on the internal efficiencies of the individual cycles and the efficiency of the boiler-utilizer. Coefficients representing the influence of the efficiencies for each cycle and for the boiler-utilizer on the efficiency of a combined-cycle plant are obtained by regression analysis.

Original languageEnglish
Number of pages5
Specialist publicationPower Technology and Engineering
Publication statusPublished - 1 Dec 2015


  • boiler-utilizer
  • Brayton cycle
  • combined cycle plant (steam-gas unit)
  • efficiency
  • gas turbine
  • low-boiling substance
  • Rankine cycle
  • steam turbine

ASJC Scopus subject areas

  • Energy Engineering and Power Technology

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