A method for heat capacity measurement by photoacoustics

Vera-Medina, G.; Marı́n, E.; Calderón, A.; Góngora, J. A. I. Díaz; Peña-Rodríguez, Gabriel; Delgado-Vasallo, O.

doi:10.1016/j.measurement.2012.10.032

Cited by 5 publications

(3 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To evaluate this behavior a decreasing exponential equation is proposed as, Note, from the definition-formulas for e and C given above, that knowledge of two thermal parameters allows the calculation of the other two. Fortunately, among other techniques, some PAC's methods exist for measurement of e 2 and C. 18,19 …”

Section: Resultsmentioning

confidence: 99%

“…when the thermally thin condition is fully fulfilled for the sample (and, therefore, for the reference sample).The m behavior also influences the values of g and h obtained from the multiparameter fit, limiting also the calculation of the linear thermal expansion coefficient. As already mentioned, it is possible to obtain the values of this coefficient using Eq (19). and the calculated values of thermal diffusivity.…”

mentioning

confidence: 99%

See 1 more Smart Citation

On the thermal characterization of solids by photoacoustic calorimetry: thermal diffusivity and linear thermal expansion coefficient

et al. 2015

Self Cite

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

On the thermal characterization of solids by photoacoustic calorimetry: thermal diffusivity and linear thermal expansion coefficient

et al. 2015

Self Cite

View full text Add to dashboard Cite

“…22,No. 1A, crophone [8][9][10]. The evolution of temperatures on the surface of the sample occurs at the same frequency that the signal source.…”

Section: Introductionmentioning

confidence: 99%

Sensitive analysis of harmonics on the assessment of thermal diffusivity of building materials of a periodic state

Promis¹,

Douzane²,

Ben³

et al. 2018

THERM SCI

View full text Add to dashboard Cite

Thermal efficiency of buildings requires a perfect knowledge of the thermal properties of materials which compose building envelope. To this end, the use of reliable testing methods for thermal diffusivity measurements of buildings materials is fundamental. Currently, periodic methods are based on the exploitation of fundamental harmonic, resulting from Fourier series decomposition. The objective of this paper is to demonstrate that fundamental is necessary and sufficient in order to characterize the thermal diffusivity. For those purposes, a sensitive analysis of harmonic contributions from Fourier series is supported by a substantial experimental campaign. Moreover, some dissymmetrical tests were carried out in order to highlight the preponderant influence of fundamental, compared to other harmonics. The analysis of contributions of harmonics shows that the evolution of thermal diffusivity is very slightly dependent on the number of harmonics. Then, the exploitation of fundamental is necessary and sufficient, and the characterization test protocol is validated by experimental results and by the comparison with commonly accepted values for these kinds of materials.

show abstract

Thermal Properties

Figura

Teixeira

2023

Food Physics

View full text Add to dashboard Cite

A method for heat capacity measurement by photoacoustics

Cited by 5 publications

References 7 publications

On the thermal characterization of solids by photoacoustic calorimetry: thermal diffusivity and linear thermal expansion coefficient

On the thermal characterization of solids by photoacoustic calorimetry: thermal diffusivity and linear thermal expansion coefficient

Sensitive analysis of harmonics on the assessment of thermal diffusivity of building materials of a periodic state

Thermal Properties

Contact Info

Product

Resources

About