ON THE SPEED OF SOUND IN STEAM

Authors

  • Pavel Šafarík Czech Technical University in Prague, Faculty of Mechanical Engineering, Technická 4, 166 07 Prague 6, Czech Republic
  • Adam Nový Doosan Škoda Power, Tylova 1/57, 301 28 Plzen, Czech Republic
  • David Jícha Doosan Škoda Power, Tylova 1/57, 301 28 Plzen, Czech Republic Czech Technical University in Prague, Faculty of Mechanical Engineering, Technická 4, 166 07 Prague 6, Czech Republic
  • Miroslav Hajšman Doosan Škoda Power, Tylova 1/57, 301 28 Plzen, Czech Republic

DOI:

https://doi.org/10.14311/AP.2015.55.0422

Keywords:

speed of sound, steam, IAPWS-IF97, shockwave

Abstract

A study of the speed of sound in a pure water substance is presented here. The IAPWS data on the state of water and steam are applied only for investigating the speed of sound for a one-phase medium. A special numerical model for investigating the parameters of shock waves in steam is presented here and is applied for investigating extremely weak waves to obtain velocities representing the speed of sound in both one-phase and two-phase steam. Problems with the speed of sound in two-phase steam are discussed, and three types of speed of sound are derived for the metastable region of wet steam.

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Author Biography

  • Pavel Šafarík, Czech Technical University in Prague, Faculty of Mechanical Engineering, Technická 4, 166 07 Prague 6, Czech Republic

    Faculty of Mechanical Engineering

    Deaprtment of Fluid Mechanics and Thermodynamics

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Published

2015-12-31

Issue

Vol. 55 No. 6 (2015)

Section

Articles

How to Cite

Šafarík, P., Nový, A., Jícha, D., & Hajšman, M. (2015). ON THE SPEED OF SOUND IN STEAM. Acta Polytechnica, 55(6), 422-426. https://doi.org/10.14311/AP.2015.55.0422
Received 2014-11-26
Accepted 2015-12-14
Published 2015-12-31