Dynamic behavior of a directly combined binary turbine system consisting of steam and R123 turbines

Yoshiaki Tanzawa, Keisuke Takeshita, Yoshiharu Amano, Takumi Hashizume

Research output: Contribution to journalArticle

Abstract

The binary turbine system that employs steam as the primary working fluid has used Rll as the secondary working fluid because Rll has good characteristics as a working fluid in power plants. However, substitute LBMs (low boiling-temperature mediums compared with water) are being developed because of the destruction of the ozone layer by CFCs. In this paper, modeling and experimental investigations into the dynamics of a directly combined binary turbine system using R123 instead of Rll are described. The system consists mainly of a steam-and an R123-turbine, an R123 vapor generator, and an AC generator. The dynamic behavior of the system is similarly discussed from the viewpoint of the network theory with the previous report. The validity of the model was proven through comparison with our experimental results, which are the frequency responses examined with respect to generator load changes. In addition, the effects of the thermodynamic property of the secondary medium on the steady and dynamic characteristics of the system are also described.

Original languageEnglish
Pages (from-to)1605-1608
Number of pages4
JournalNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume67
Issue number658
Publication statusPublished - 2001 Jun
Externally publishedYes

Fingerprint

steam turbines
working fluids
turbines
Turbines
Steam
steam
Fluids
AC generators
vaporizers
Ozone layer
ozonosphere
chlorofluorocarbons
Chlorofluorocarbons
Circuit theory
power plants
boiling
dynamic characteristics
Boiling liquids
frequency response
destruction

Keywords

  • Binary Turbine System
  • Heat Exhcanger
  • Power Plant
  • Process Dynamics
  • Steam Turbine
  • Waste Heat Recovery

ASJC Scopus subject areas

  • Mechanical Engineering
  • Condensed Matter Physics

Cite this

Dynamic behavior of a directly combined binary turbine system consisting of steam and R123 turbines. / Tanzawa, Yoshiaki; Takeshita, Keisuke; Amano, Yoshiharu; Hashizume, Takumi.

In: Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 67, No. 658, 06.2001, p. 1605-1608.

Research output: Contribution to journalArticle

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