Velocity of Sound in Liquid Propane

Abstract

Sound velocity measurements on liquid propane from 90 to 300 K and for pressures to 34 MPa are reported. Also included are saturated liquid sound velocities from 90 to 290 K. The data were combined with Pe T data to compute compressibility and specific heat ratio. Comparisons were made to computed values of sound velocity of Goodwin and to the data of Lacam.

Thermodynamic Properties of Propane. IV. Speed of Sound in the Liquid and Supercritical Regions

“…The gray area denotes the region of our measurements. ×, this work; □, ref ; ○, ref ; +, ref ; ⧖, ref ; △, ref ; ▽, ref ; ⋈, ref and , vapor pressure.…”

“…in propane, literature data, and three equation of state models from values c (calc.) obtained from the fundamental equation of state of Lemmon et al as a function of pressure at 240 K, 260 K, and 280 K. Experimental data: ○, this work; △, ref ; □, ref ; and +, ref . Equations of state: , ref ; −·–, ref ; ···, ref and −––, ref .…”

“…Terres et al, Trusler and Zarari, He et al., and Hurly et al measured the speed of sound in the gas phase, while the data of Noury cover the vicinity of the critical point in the supercritical region. Data in the liquid region were published by Lacam, Younglove, and Niepmann …”

“…Although the speed of sound in propane under high pressures has been measured by several authors, − there are considerable differences between the different data sets, and it was not known which one was correct. To overcome this situation, it was the aim of this work to provide accurate and comprehensive speed of sound data in the liquid and supercritical regions of propane.…”

Study of acoustic emission due to vaporisation of superheated droplets at higher pressure

“…During bubble expansion a shock wave can only be generated when the bubble expansion velocity exceeds the speed of sound in superheated liquid. The speed of sound in superheated liquid is usually much lower than that in normal liquid [25] and it increases with the increase in applied pressure [26][27] at a given temperature. Since with increase in pressure both the r c and W increase at a given temperature, here at higher pressure the radial velocity of the growing microbubble will cross the velocity of sound at a larger bubble radius compared to that at lower pressure.…”