Nanoparticle enhanced PCM applications for intensification of thermal performance in building: A review

Keshteli, A. Nematpour; Sheikholeslami, M.

doi:10.1016/j.molliq.2018.10.151

Cited by 173 publications

(32 citation statements)

References 175 publications

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“…Thus, for example, reliable information regarding dynamic viscosity is necessary to estimate the pressure drop and pumping power in those cases in which work in the liquid phase requires a pumping system [56,77]. Likewise, surface tension is related to the crystallization ability of materials, whereas volumetric properties are required to determine volume changes during phase change or due to the effect of temperature [79,80]. Additionally, an accurate characterization of these physical and thermal properties is also necessary to describe melt convection heat transfer response by means of different non-dimensional ratios such as Nusselt, Rayleigh, Stefan, or Fourier numbers.…”

Section: Introductionmentioning

confidence: 99%

Thermal and Physical Characterization of PEG Phase Change Materials Enhanced by Carbon-Based Nanoparticles

et al. 2020

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This paper presents the preparation and thermal/physical characterization of phase change materials (PCMs) based on poly(ethylene glycol) 400 g·mol−1 and nano-enhanced by either carbon black (CB), a raw graphite/diamond nanomixture (G/D-r), a purified graphite/diamond nanomixture (G/D-p) or nano-Diamond nanopowders with purity grades of 87% or 97% (nD87 and nD97, respectively). Differential scanning calorimetry and oscillatory rheology experiments were used to provide an insight into the thermal and mechanical changes taking place during solid-liquid phase transitions of the carbon-based suspensions. PEG400-based samples loaded with 1.0 wt.% of raw graphite/diamond nanomixture (G/D-r) exhibited the lowest sub-cooling effect (with a reduction of ~2 K regarding neat PEG400). The influences that the type of carbon-based nanoadditive and nanoparticle loading (0.50 and 1.0 wt.%) have on dynamic viscosity, thermal conductivity, density and surface tension were also investigated in the temperature range from 288 to 318 K. Non-linear rheological experiments showed that all dispersions exhibited a non-Newtonian pseudo-plastic behavior, which was more noticeable in the case of carbon black nanofluids at low shear rates. The highest enhancements in thermal conductivity were observed for graphite/diamond nanomixtures (3.3–3.6%), while nano-diamond suspensions showed the largest modifications in density (0.64–0.66%). Reductions in surface tension were measured for the two nano-diamond nanopowders (nD87 and nD97), while slight increases (within experimental uncertainties) were observed for dispersions prepared using the other three carbon-based nanopowders. Finally, a good agreement was observed between the experimental surface tension measurements performed using a Du Noüy ring tensiometer and a drop-shape analyzer.

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Section: Introductionmentioning

confidence: 99%

Thermal and Physical Characterization of PEG Phase Change Materials Enhanced by Carbon-Based Nanoparticles

et al. 2020

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“…Inorganic PCMs are basically salt hydrates (most used), molten salts, or metals and are of higher densities and energy efficiency than organics [95] with the merits of wider transition temperature range, high latent heat and high thermal conductivity [62], besides, they are non-toxic, non-flammable and of low cost, compared to organic PCMs [96]. On the other hand, super cooling, phase segregation, lack of thermal stability, corrosion and decomposition, are drawbacks which dominates their benefits [97].…”

Section: Figurementioning

confidence: 99%

A review on phase change materials for thermal energy storage in buildings: Heating and hybrid applications

Faraj

Khaled

Faraj

et al. 2021

Journal of Energy Storage

185

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Researchers worldwide are investigating thermal energy storage, especially phase change materials, for their substantial benefits in improving energy efficiency, sustaining thermal comfort in buildings and contributing to the reduction of environmental pollution. Residential buildings and commercial constructions, being dependent on heating and cooling systems, are subjected to the utilization of PCM technology through several applications. The current study presents a state-of-the-art review that covers recent literature on thermal energy storage systems utilizing PCMs for buildings. The reviewed applications are heating and hybrid applications, that are categorized as passive and active systems. A summary of the PCMs used, applications, thermo-physical properties and incorporation methods are presented as well. The study emphasizes the promising effectiveness of PCM in building heating applications, and highlights the significance of PCM system hybridization. The study shows that experimental investigations on commercial constructions, and hybrid systems development and optimization, are still required. Finally, possible combinations of active and passive heating applications with their auspicious benefits in terms of energy efficiency augmentation, are recommended. Highlights  State-of-the-art review on PCM building applications for heating and hybrid systems  Active and Passive classification for heating and hybrid systems  Challenges altering the PCM technology for energy-efficient buildings are addressed  Hybridization of active and passive systems forms a potential method toward NZEB

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“…Recently, the applications of Neural Network have been significantly increased in various engineering and industrial applications . Scholars and researchers have widely applied this method for the estimation of the results.…”

Section: Application Of Gmdh‐type Nn For Modeling Of the Problemmentioning

confidence: 99%

Application of neural network on heat transfer enhancement of magnetohydrodynamic nanofluid

Gerdroodbary

2019

Heat Trans. Asian Res.

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Nanoparticle enhanced PCM applications for intensification of thermal performance in building: A review

Cited by 173 publications

References 175 publications

Thermal and Physical Characterization of PEG Phase Change Materials Enhanced by Carbon-Based Nanoparticles

Thermal and Physical Characterization of PEG Phase Change Materials Enhanced by Carbon-Based Nanoparticles

A review on phase change materials for thermal energy storage in buildings: Heating and hybrid applications

Application of neural network on heat transfer enhancement of magnetohydrodynamic nanofluid

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