Pichandi et al. [44] created a eutectic mixture of sodium carbonate decahydrate with magnesium sulfate heptahydrate to improve the thermophysical properties of the PCM, including the latent...

1979年10月1日 · By means of differential scanning calorimetry (DSC), these differences have been determined for several salt hydrates. For Na 2 SO 4 · 10 H 2 O, the enthalpy of solidification at or near the peritectic temperature is never more than 60% of the enthalpy of fusion; further cooling leads to a second phase transition at a temperature corresponding ...

Fibrillated cellulose can be used as a gelation agent to thicken and improve phase stability of sodium sulfate decahydrate (SSD, Na2SO4·10H2O), a promising salt hydrate for storing thermal...

2023年9月26日 · It has been reported that sodium sulfate could improve alkalinity for accelerating the release of active Al 2 O 3 and SiO 2 from SCMs to form extra hydrates [38, 39, 40]. The addition of sodium sulfate boosted the early age hydration of fly ash–cement binder, and the mechanical strength did not reverse at later ages [40, 41, 42, 43].

2018年8月16日 · The phase transition temperature and latent heat of phase change of the prepared sodium sulfate hydrated salt system were measured by DSC. The phase transition temperature was 6.4 °C, and the latent heat of phase change was 141 J g −1 .

2018年6月1日 · Both borax (Na 2 B 4 O 7 ·10H 2 O) and 3D-rGO were used to reduce the supercooling degree of sodium sulphate decahydrate. The T-history method was used in studying the effect of Na 2 B 4 O 7 ·10H 2 O and 3D-rGO on supercooling of PCM.

2021年6月27日 · We investigate the molecular level mechanism of supercooling in sodium sulfate decahydrate (SSD). SSD is a complex salt hydrate whose properties are governed by electrostatic forces that...

2021年9月26日 · DSC analysis was carried out to determine the thermal enthalpy of given formulations (1–2, 2–2, and 3–1). The DSC data were collected in the temperature range of 10 to 50 °C and the temperature at the heating rate of 5 °C min −1. The obtained DSC curves are presented in Fig. 8 and results are summarized in Table 4.

2022年3月15日 · The thermal cycling stability of the PCM composite was enhanced by using dextran sulfate sodium (DSS) salt as a polyelectrolyte additive, which significantly reduced the phase segregation of salt hydrate.

1979年10月1日 · By means of differential scanning calorimetry (DSC), these differences have been determined for several salt hydrates. For Na 2 SO 4 · 10 H 2 O, the enthalpy of solidification at or near the peritectic temperature is never more than 60% of the enthalpy of fusion; further cooling leads to a second phase transition at a temperature corresponding ...