New calibration methodology for calorimetric determination of isobaric thermal expansivity of liquids as a function of temperature and pressure

Navia, Paloma; Troncoso, Jacobo; Romanı́, Luis

doi:10.1016/j.jct.2008.06.007

Cited by 26 publications

(40 citation statements)

References 21 publications

(48 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The uncertainty in mole fraction was estimated to be ±0.0001. Isobaric thermal expansivity measurements were carried out by means of a microDSCII from Setaram coupled with a Ruska 7610 pressure controller [18,20]. Once the sample is introduced in the calorimeter and it reaches the thermal equilibrium at the measuring temperature, a pressure ramp at a rate of 1.5 MPa min −1 was applied.…”

Section: Apparatus and Proceduresmentioning

confidence: 99%

“…Due to the pressure variation, a heat flux f appears between the sample and the calorimetric block, which is detected by the flowmeters located around the cell that contains the sample. Data of pressure p and heat flux f are stored and then used to obtain the isobaric thermal expansivity˛p by making use of the well-known equation, derived from a Maxwell's relation [20]:…”

Section: Apparatus and Proceduresmentioning

confidence: 99%

“…With this in mind, we have quoted the uncertainty in˛E p to be ±6 K −1 . More detailed information about the experimental procedure is given in [20].…”

Section: Apparatus and Proceduresmentioning

confidence: 99%

“…To this end, the isobaric thermal expansivity of 1-hexanol + n-hexane was measured within the temperature and pressure intervals 278.15-348.15 K and 0.5-50 MPa over the whole composition range. The measurements were performed by means of a highly precise calorimetric method [20]. From the experimental data, the excess isobaric thermal expansivity at selected temperatures and pressures is calculated.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Isobaric thermal expansivity of the binary system 1-hexanol+n-hexane as a function of temperature and pressure

Navia¹,

Troncoso²,

Romanı́³

2009

Fluid Phase Equilibria

Self Cite

View full text Add to dashboard Cite

Section: Apparatus and Proceduresmentioning

confidence: 99%

Section: Apparatus and Proceduresmentioning

confidence: 99%

“…With this in mind, we have quoted the uncertainty in˛E p to be ±6 K −1 . More detailed information about the experimental procedure is given in [20].…”

Section: Apparatus and Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Isobaric thermal expansivity of the binary system 1-hexanol+n-hexane as a function of temperature and pressure

Navia¹,

Troncoso²,

Romanı́³

2009

Fluid Phase Equilibria

Self Cite

View full text Add to dashboard Cite

“…These measurements were carried out by means of a highly precise calorimetric method [13,14] in the temperature and pressure intervals (278.15 to 348.15) K and (0.5 to 55) MPa for 1-alcohol series (except 1-methanol and 1-butanol, reported in a previous paper), for two non-primary isomers of pentanol (2-pentanol and 3-pentanol) and for pentylamine. The experimental results are compared with a p literature data which were obtained from density [5][6][7]15].…”

Section: Introductionmentioning

confidence: 99%

Isobaric thermal expansivity behaviour against temperature and pressure of associating fluids

Navia

Troncoso

Romanı́

2010

The Journal of Chemical Thermodynamics

Self Cite

View full text Add to dashboard Cite

Thermodynamic Properties of Liquid Toluene from Speed-of-Sound Measurements at Temperatures from 283.15 K to 473.15 K and at Pressures up to 390 MPa

et al. 2021

View full text Add to dashboard Cite

We report the speeds of sound in liquid toluene (methylbenzene) measured using double-path pulseecho apparatus independently at The University of Western Australia (UWA) and Imperial College London (ICL). The UWA data were measured at temperatures between (306 and 423) K and at pressures up to 65 MPa with standard uncertainties of between (0.02 and 0.04) %. At ICL, measurements were made at temperatures between (283.15 and 473.15) K and at pressures up to 390 MPa with standard uncertainty of 0.06 %. By means of thermodynamic integration, the measured sound-speed data were combined with initial density and isobaric heat capacity values obtained from extrapolated experimental data to derive a comprehensive set of thermodynamic properties of liquid toluene over the full measurement range. Extensive uncertainty analysis was performed by studying the response of derived properties to constant and dynamic perturbations of the sound-speed surface, as well as the initial density and heat capacity values. The relative expanded uncertainties at 95 % confidence of derived density, isobaric heat capacity, isobaric expansivity, isochoric heat capacity, isothermal compressibility, isentropic compressibility, thermal pressure coefficient and internal pressure were estimated to be (0.2, 2.2, 1.0, 2.6, 0.6, 0.2, 1.0 and 2.7) %, respectively. Due to their low uncertainty, these data and derived properties should be well-suited for developing a new and improved fundamental Helmholtz equation of state for toluene.

show abstract

New calibration methodology for calorimetric determination of isobaric thermal expansivity of liquids as a function of temperature and pressure

Cited by 26 publications

References 21 publications

Isobaric thermal expansivity of the binary system 1-hexanol+n-hexane as a function of temperature and pressure

Isobaric thermal expansivity of the binary system 1-hexanol+n-hexane as a function of temperature and pressure

Isobaric thermal expansivity behaviour against temperature and pressure of associating fluids

Thermodynamic Properties of Liquid Toluene from Speed-of-Sound Measurements at Temperatures from 283.15 K to 473.15 K and at Pressures up to 390 MPa

Contact Info

Product

Resources

About