Speed of sound, density and derivative properties of binary mixtures HFE-7500 + Diisopropyl ether under high pressure

Speed of Sound Measurements and Thermophysical Modeling of Binary Mixtures of Methyl Laurate and n-Dodecane

“…The experimental data on the speed of sound for the mixture of methyl laurate + n -dodecane are shown in Table and Figure . To satisfy the needs of project design, the experimental speeds of sound data were correlated as a function of both temperature and pressure with the following rational equation: c = A 0 + A 1 T + A 2 T 2 + A 3 T 3 + B 1 p + B 2 p 2 + B 3 p 3 1 + C T + D p where A 0 , A 1 , A 2 , A 3 , B 1 , B 2 , B 3 , C , and D are adjustable parameters, which are given in Table . The relative deviation (RD), the absolute average percentage deviation (AAD), and the maximum deviation (MD) are, respectively, introduced in the following forms: normalRD / % = 100 ( 1 − y normalcal , i y exp , i ) normalAAD / % = 100 N falsefalse ∑ i N true| 1 − y normalcal , i y exp , i true| normalMD / % = 100 Max ( true| 1 − y normalcal , i …”

Speed of Sound and Excess Properties of (Ethanol + Isooctane) Binary System

“…The experimental data of the speed of sound are shown in Table and Figure . The experimental data of the speeds of sound were fitted with the following empirical equation: where adjustable parameters A 0 , A 1 , A 2 , A 3 , B , C , and D are listed in Table . The accuracy of the calculation formula can be accessed by the relative deviation (RD), the maximum deviation (MD), and the absolute average percentage deviation (AAD).…”

“…The experimental data of the speed of sound are shown in Table5and Figure2. The experimental data of the speeds of sound were fitted with the following empirical equation:32…”

Thermo-Acoustic Properties of (Ethanol + n-Heptane) Binary Mixtures from 293.35 to 433.89 K and up to 5.0 MPa

“…The reported experimental speeds of sound in ethanol (1) + n -heptane (2) with the mole fractions of ethanol being (0.100, 0.300, 0.500, 0.700, and 0.900) are ranging from 572.4 to 1177.9 m·s –1 , which are presented in Table and Figure . To facilitate verification by literature data and for deriving thermo-acoustic properties, these experimental data were correlated as a function of temperature and pressure with a fixed concentration using the following rational equation: where A 0 , A 1 , A 2 , B 1 , C , D , and E are adjustable parameters, which are given in Table . To evaluate the accuracy of the fitting expression and computational formula, the relative deviation (RD), the absolute average percentage deviation (AAD), and the maximum deviation (MD) are respectively introduced in the following forms: where y cal, i is the i th values calculated with the correlation and y exp, i is the i th values of experimental results or literature data.…”