Influence of different basic raw materials from technical to laboratory grade on the maximum storage capacity of CaBr2·6H2O

Hiebler, Stefan; Rudaleviciene, Dovile; Rathgeber, Christoph

doi:10.1016/j.tca.2018.10.026

Cited by 3 publications

(2 citation statements)

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“…In such applications, viable use of latent-heat-based TES requires the phase-transition temperature T sf of phase-change material (PCM) to be in the temperature band of 25–35 °C. This represents the median range of diurnal average daily temperature variations in arid regions. , A representative set of PCMs are mapped in Figure with respect to their specific latent heat capacity h sf and T sf as reported in the literature. − With the exception of a few organic compounds, inorganic salt hydrates are primarily highlighted. A notable feature of the plot in Figure is that a triad of salt hydrates have relatively large h sf , and thus have a greater potential for TES applications in the stipulated temperature band.…”

Section: Introductionmentioning

confidence: 99%

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Phase-Transition Efficacy and Material Compatibility with Thermal Cycling of Lithium Nitrate Trihydrate as a Phase-Change Material

Kannan

Kumar

Jog

et al. 2022

Ind. Eng. Chem. Res.

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Experimental results for phase transition during extended thermal cycling of the salt hydrate LiNO 3 •3H 2 O in both heterogeneous nucleation and self-seeding as well as material compatibility are presented. Controlled samples of this phasechange material (PCM) are heated and cooled between 20 and 40 °C. This was carried out for 1000 thermal cycles to ascertain the long-term suppression of subcooling without degradation in latent heat (h sf ). In heterogeneous nucleation, two additives were considered, Zn 3 OH 4 (NO 3 ) 2 , and Zn(NO 3 ) 2 •6H 2 O, whereas the self-seeding was induced by less than complete (90%) melting. The two nucleating agents were selected by the minimal latticemismatch method for salt crystals. Self-seeding was found to completely suppress subcooling without any loss in the latent heat of fusion, whereas heterogeneous nucleation with additives resulted in a subcooling of ΔT s > 3 °C and an up to 8−52% loss in latent heat after 1000 thermal cycles. Additionally, the material compatibility test was conducted with Al 3003, Al 1100, and SS 304 for 4000 heating−cooling cycles. The corrosion rates observed without nucleating agents were insignificant and less than typically observed in similar metals exposed to marine conditions.

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Section: Introductionmentioning

confidence: 99%

“…Selected inorganic salt hydrate and organic compound PCMs and their specific latent heat in the temperature range of 25–35 °C reported in the literature; average values are graphed with error bands spanning minimum and maximum reported − values.…”

Section: Introductionmentioning

confidence: 99%