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GerardLardner10-Marble
10-Marble
March 25, 2024
Question

Calculating the speed of sound in wet steam

  • March 25, 2024
  • 2 replies
  • 5355 views

Does anyone have a method for calculating the speed of sound in wet steam?


The standard method works for dry or superheated steam, but breaks down rapidly at and below saturation temperature.


The 2015 paper by Šafařík, November, Jícha and Hackman "On the speed of sound in steam" shows a discontinuity in the speed vs dryness curves at about 0.98 dryness, but I do not know if that is supported by measurement.

2 replies

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GerardLardner10-MarbleAuthor
10-Marble
March 25, 2024

Sorry, spelling checker has mangled the names mentioned above. They should be Šafařík, Nový, Jícha, and Hajšman.

P
ppal_25568718-Opal
18-Opal
March 25, 2024

THE SPEED OF SOUND IN STEAM (asee.org)  - dont know wet or dry  

 

Sound Speed in Liquid‐Gas Mixtures: Water‐Air and Water‐Steam (illinois.edu)

But I guess you can search just like I did and this is not it!

 

and Chat GPT says

ppal_0-1711331503943.png

 And  Gemini AI says:

If you need a rough estimate, you might find references to the speed of sound in wet steam being around 10% lower than dry steam at similar conditions. However, this is a simplification and won't be accurate for all cases.

T
21-Topaz II
terryhendicott21-Topaz II
21-Topaz II
March 25, 2024

Hi,

Your reference says no measured data is available?:  But there is one that has measurements of wet steam.

ON THE SPEED OF SOUND IN STEAM
Pavel Šafa?íka,?, Adam Novýb, David Jíchaa,b, Miroslav Hajšmanb


Papers [5, 6] provide much stimulation for further studies of the speed of sound in wet steam, because they deal with the propagation of waves in wet steam. However, no measured data have in fact been published.

[5, 6] are not this article:
Velocity of Sound Measurements in Wet Steam
R. E. Collingham and J. C. Firey

TY - JOUR
T1 - Velocity of Sound Measurements in Wet Steam
AU - Collingham, R. E.
AU - Firey, J. C.
Y1 - 1963/07/01
PY - 1963
DA - 1963/07/01
N1 - doi: 10.1021/i260007a005
DO - 10.1021/i260007a005
T2 - Industrial & Engineering Chemistry Process Design and Development
JF - Industrial & Engineering Chemistry Process Design and Development
JO - Ind. Eng. Chem. Proc. Des. Dev.
SP - 197
EP - 202
VL - 2
IS - 3
PB - American Chemical Society
SN - 0196-4305
M3 - doi: 10.1021/i260007a005
UR - https://doi.org/10.1021/i260007a005
ER -

 

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    vnamboodheriCommunity Manager
    Community Moderator
    April 3, 2024

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