Preparation and characterization of new nano-particle mixed as thermal storage material

Liu, Yuan; Liu, Weijun; Zhang, Shuhua; Tian, Dongbo; Tian, Zhongxun

doi:10.1016/j.applthermaleng.2019.114386

Cited by 20 publications

(8 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a result of nanoparticles addition, a part of the PCM is replaced by the non-phase-changing material and less latent heat per NEPCM mass can be stored. Such phenomenon was confirmed by many researchers [41,42,44,[46][47][48][54][55][56]58]. Based on Table 2, it can be concluded, that the decrease of the latent heat varied from about 2% to 15%, depending on the nanomaterial type and its mass fraction.…”

Section: Nanomaterialssupporting

confidence: 62%

“…The largest reduction of latent heat, by about 68%, was obtained by Ghossein et al [56] who added silver nanoparticles (10 wt.%) into the eicosane. Theoretically, the latent heat of NEPCMs should decrease linearly with an increasing volume fraction of nanomaterials [41,44,46,55,56], which was confirmed experimentally by some researchers [41,47]. However, Masoumi et al [46], Liu et al [55], and Ghossein et al [56] reported that the measured value of latent heat decreased more than predicted from the theory.…”

Section: Nanomaterialsmentioning

confidence: 78%

“…Theoretically, the latent heat of NEPCMs should decrease linearly with an increasing volume fraction of nanomaterials [41,44,46,55,56], which was confirmed experimentally by some researchers [41,47]. However, Masoumi et al [46], Liu et al [55], and Ghossein et al [56] reported that the measured value of latent heat decreased more than predicted from the theory. According to Masoumi et al [46], it was caused by the morphological, dimensional, and structural properties of the nanomaterials, while Ghossein et al [56] attributed that finding to the colligative properties of the NEPCM.…”

Section: Nanomaterialsmentioning

confidence: 78%

“…As a result, the thermal conductivity of NEPCMs with high fraction of the nanoparticles started to decrease. Therefore, dispersion stabilizers are used, like: sodium stearoyl lactylate [43], sodium dodecyl benzene sulfonate [46], polyvinyl pyrrolidone [52,55], and oleoyl sarcosine [56]. Some studies [41,44,49,51,52,54,57] investigated the insertion of different types of the nanomaterials into one PCM.…”

Section: Nanomaterialsmentioning

confidence: 99%

See 3 more Smart Citations

The Impact of Additives on the Main Properties of Phase Change Materials

2020

View full text Add to dashboard Cite

The main drawback of phase change materials (PCMs) is their low thermal conductivity, which limits the possibilities of a wide range of implementations. Therefore, the researchers, as found in the literature, proposed several methods to improve the thermal conductivity of PCMs, including inserting high thermal conductivity materials in nano-, micro-, and macro-scales, as well as encapsulation of PCMs. However, these inserts impact the other properties of PCMs like latent heat, melting temperature, thermal stability, and cycling stability. Hence, this paper aims to review the available in the open literature research on the main properties of enhanced PCMs that undergo solid–liquid transition. It is found that inserting high thermal conductivity materials and encapsulation results in improved thermal conductivity of PCMs, but it decreases their latent heat. Moreover, the insertions can act as nucleating agents, and the supercooling degree can be reduced. Some of the thermal conductivity enhancers (TCEs) may prevent PCMs from leakage. However, some test results are inconsistent and some seem to be questionable. Therefore, this review indicates these discrepancies and gaps in knowledge and points out possible directions for further research.

show abstract

Section: Nanomaterialssupporting

confidence: 62%

Section: Nanomaterialsmentioning

confidence: 78%

Section: Nanomaterialsmentioning

confidence: 78%

Section: Nanomaterialsmentioning

confidence: 99%

See 2 more Smart Citations

The Impact of Additives on the Main Properties of Phase Change Materials

2020

View full text Add to dashboard Cite

show abstract

“…The thermal conductivity was increased from 0.497 to 5.875 W/(m·K) by adding 10 wt% expanded graphite (EG) as the nucleating agent and thermal conductivity enhancer. Liu et al added 1 wt% polyvinyl pyrrolidone (PVP) as the thickener and 1 wt% nano‐carbon powder as the thermal conductivity enhancer in KAl(SO 4 ) 2 ·12H 2 O/Na 2 SO 4 ·10H 2 O 24 . The phase change temperature of the CPCM was 65.68°C and the latent heat was 132.2 J/g.…”

Section: Introductionmentioning

confidence: 99%

Effects of thickeners on thermophysical properties of Alum as phase change material for energy storage

Mao

Zhang

et al. 2021

J of Applied Polymer Sci

View full text Add to dashboard Cite

The main objective of this research is to characterize, via experimental analysis, the effects of thickeners on thermophysical properties of Alum (KAl[SO4]2·12H2O) as phase change material (PCM) for energy storage. Six thickeners, including sodium carboxymethyl cellulose (CMC‐Na), sodium polyacrylate (PAAS), polyacrylamide (PAM), polyvinyl alcohol, xanthan gum (XG) and methylcellulose (MC), are added in Alum. Then the thermophysical properties and the cycle stability are tested and analyzed by step cooling experiment, differential scanning calorimeter, hot disk, scanning electron microscopy, high‐low temperature alternating test chamber, X‐ray diffraction (XRD), and Fourier transform infrared spectrometer (FT‐IR). The results showed that the adding of 2 wt% CMC‐Na, 1 wt% PAAS, 2 wt% PAM, 5 wt% XG, and 1 wt% MC to Alum can effectively reduce the subcooling of Alum while still maintaining the latent heat at a high level. After stability test with 60 melting‐solidification cycles, the results indicate that Alum with 1 wt% MC has the best thermal cycle stability and has the highest latent heat (230 J/g). The latent heat is only 8.1% lower than that of pure Alum after 1 cycle, and 11.1% higher than that of pure Alum after 60 cycles. The XRD, FT‐IR, and thermogravimetry results show that it has good chemical and thermal stability.

show abstract

Applications of Nano-enhanced Phase Change Materials in Textiles

Rajamony,

Samykano

2023

Materials Horizons: From Nature to Nanomaterials

View full text Add to dashboard Cite

Preparation and characterization of new nano-particle mixed as thermal storage material

Cited by 20 publications

References 25 publications

The Impact of Additives on the Main Properties of Phase Change Materials

The Impact of Additives on the Main Properties of Phase Change Materials

Effects of thickeners on thermophysical properties of Alum as phase change material for energy storage

Applications of Nano-enhanced Phase Change Materials in Textiles

Contact Info

Product

Resources

About