Untitled

Gurova, A. N.; Mardolcar, U. V.; Castro, C. A. Nieto de

doi:10.1023/a:1021422012447

Cited by 17 publications

(8 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The second apparatus allowed studies at cryogenic temperatures, to measure liquefied gases, like argon and methane [6][7][8][9], and permitted measurements of a wide range of refrigerant liquids [10][11][12][13] that were environmentally acceptable. The need for accurate data on electrically conducting liquids justified the construction of the third apparatus, applied to the measurement of the thermal conductivity of water, and aqueous solutions of inorganic salts [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

A New Instrument for the Measurement of the Thermal Conductivity of Fluids

et al. 2006

Self Cite

View full text Add to dashboard Cite

The transient hot-wire technique is at present the best technique for obtaining standard reference data for the thermal conductivity of fluids. It is an absolute technique, with a working equation and a complete set of corrections reflecting departures from the ideal model, where the principal variables are measured with a high degree of accuracy. It is possible to evaluate the uncertainty of the experimental thermal conductivity data obtained using the best metrological recommendations. The liquids proposed by IUPAC (toluene, benzene, and water) as primary standards were measured with this technique with an uncertainty of 1% or better (95% confidence level). Pure gases and gaseous mixtures were also extensively studied. It is the purpose of this paper to report on a new instrument, developed in Lisbon, for the measurement of the thermal conductivity of gases and liquids, covering temperature and pressure ranges that contain the near-critical region. The performance of the instrument for pressures up to 15 MPa was tested with gaseous argon, and measurements on dry air (Synthetic gas mixture, with molar composition certified by Linde AG, Wiesbaden, Germany, Ar -0.00920; O 2 -0.20966; N 2 -0.78114), from room temperature to 473 K and pressures up to 10 MPa are also reported. The estimated uncertainty is 1%.

show abstract

Section: Introductionmentioning

confidence: 99%

A New Instrument for the Measurement of the Thermal Conductivity of Fluids

et al. 2006

Self Cite

View full text Add to dashboard Cite

show abstract

“…[15] and [19] are represented with a better accuracy, whereas the data from Ref. [18], even if claimed with a low value of uncertainty, are represented in a slightly worse way, see also Fig. 3.…”

Section: Representation Of the Thermal Conductivity Surface Of R152amentioning

confidence: 99%

Thermal conductivity equations for pure fluids in a heuristic extended corresponding states framework

Scalabrin¹,

Marchi²,

Stringari³

et al. 2006

Fluid Phase Equilibria

View full text Add to dashboard Cite

“…Afshar and Saxena [31] Assael et al [18] Geller et al [19] Gross et al [20] Gurova et al [21] Kim et al [22] Kruppa and Straub [27] Le Neindre and Garrabos [23] Taxis-Reischl [32] Pressure P , MPa…”

Section: Primary Datamentioning

confidence: 99%

“…In fact, apart from a couple of older sets [30,34], all the data measured with the transient hot wire technique [18,20,21,22,32] are included in the primary sets; this is not surprising, because the transient hot wire technique is considered the most reliable one for the measurement of the thermal conductivity of fluids. Also other datasets obtained with different versions of the hot wire technique [19,31] are primary sets.…”

Section: Screening Of Data and Fitting Proceduresmentioning

confidence: 99%

“…Afshar and Saxena [31] Gurova et al [21] Taxis-Reischl [32] Assael et al [18] Kim et al [22] Krauss et al [17] Geller et al [19] Kruppa and Straub [27] Saturation line Gross et al [20] Le Neindre and Garrabos [23] Table I shows that some experimental datasets are affected by high systematic errors, particularly the thermal diffusivity datasets at saturated conditions [26,27]. Moreover, some inconsistencies among different sources are evidenced in Figs.…”

Section: Primary Datamentioning

confidence: 99%

See 1 more Smart Citation

A Multiparameter Thermal Conductivity Equation for 1,1-Difluoroethane (R152a) with an Optimized Functional Form

2006

View full text Add to dashboard Cite

The application of an optimization technique to the available experimental data has led to the development of a new multiparameter equation λ = λ (T , ρ) for the representation of the thermal conductivity of 1,1-difluoroethane (R152a). The region of validity of the proposed equation covers the temperature range from 220 to 460 K and pressures up to 55 MPa, including the near-critical region. The average absolute deviation of the equation with respect to the selected 939 primary data points is 1.32%. The proposed equation represents therefore a significant improvement with respect to the literature conventional equation. The density value required by the equation is calculated at the chosen temperature and pressure conditions using a high accuracy equation of state for the fluid.

show abstract

Untitled

Cited by 17 publications

References 16 publications

A New Instrument for the Measurement of the Thermal Conductivity of Fluids

A New Instrument for the Measurement of the Thermal Conductivity of Fluids

Thermal conductivity equations for pure fluids in a heuristic extended corresponding states framework

A Multiparameter Thermal Conductivity Equation for 1,1-Difluoroethane (R152a) with an Optimized Functional Form

Contact Info

Product

Resources

About