The determination of fusion enthalpy of ternary eutectic mixtures of molten salt was crucial for the development of feasible PCM material. A simulation method was presented as a suitable and fast way to estimate a first rough value of latent heat. The approach was validated by calorimetric measurements using five eutectic mixtures composed by alkaline nitrates and nitrites. At this aim, the binary fitting parameters determined in previous works were collected and then employed to estimate the latent enthalpy of the corresponding ternary mixtures, according to a thermodynamic model based on the regular solution assumptions. The obtained values were confronted with the experimental measurements, resulting in a discrepancy of about 15%.

Delise, T., Tizzoni, A.c., Mansi, E., Spadoni, A., Turchetti, L., D'Ottavi, C., et al. (2022). A practical simulation method to estimate fusion enthalpy of phase change materials eutectic mixtures for CSP plant applications. In SOLARPACES 2020: 26th International Conference on Concentrating Solar Power and Chemical Energy Systems (pp. 160004). American Institute of Physics Inc. [10.1063/5.0085751].

A practical simulation method to estimate fusion enthalpy of phase change materials eutectic mixtures for CSP plant applications

Delise T.;Tizzoni A. C.;D'Ottavi C.;Licoccia S.
2022-01-01

Abstract

The determination of fusion enthalpy of ternary eutectic mixtures of molten salt was crucial for the development of feasible PCM material. A simulation method was presented as a suitable and fast way to estimate a first rough value of latent heat. The approach was validated by calorimetric measurements using five eutectic mixtures composed by alkaline nitrates and nitrites. At this aim, the binary fitting parameters determined in previous works were collected and then employed to estimate the latent enthalpy of the corresponding ternary mixtures, according to a thermodynamic model based on the regular solution assumptions. The obtained values were confronted with the experimental measurements, resulting in a discrepancy of about 15%.
2022
Settore CHIM/07 - FONDAMENTI CHIMICI DELLE TECNOLOGIE
English
Rilevanza internazionale
Capitolo o saggio
CSP; EUTECTIC; MOLTEN SALTS
Delise, T., Tizzoni, A.c., Mansi, E., Spadoni, A., Turchetti, L., D'Ottavi, C., et al. (2022). A practical simulation method to estimate fusion enthalpy of phase change materials eutectic mixtures for CSP plant applications. In SOLARPACES 2020: 26th International Conference on Concentrating Solar Power and Chemical Energy Systems (pp. 160004). American Institute of Physics Inc. [10.1063/5.0085751].
Delise, T; Tizzoni, Ac; Mansi, E; Spadoni, A; Turchetti, L; D'Ottavi, C; Corsaro, N; Sau, S; Licoccia, S
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/312958
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