Macro‐porous permeability aspects of <scp>MgSO<sub>4</sub></scp> salt hydrate foams for energy storage applications

Calabrese, Luigi; Hernández, Leonor; Mondragón, Rosa; Cabeza, Luisa F.

doi:10.1002/app.51924

Cited by 2 publications

(2 citation statements)

References 39 publications

(69 reference statements)

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“…A saline solution limits host matrix material selection and stability by inducing swelling and deliquescence [126]. Novel host matrices aim to alleviate these shortcomings via pore networks that improve vapour and solvent diffusion for complete deliquescence of the salt hydrate while containing the solution so that ΔRH can be repeatably maximised [127].…”

Section: Thermochemical Heat Storagementioning

confidence: 99%

“…Often made from zeolite [145,146], bentonite [147,148], or vermiculite [149][150][151], they are impregnated with a salt for their low cost and high reaction enthalpy (of 11 to 384 kJ/mol depending on the salt [123]) and but are often limited to packed bed system design where beads adopt the shape of the container. Other host matrix materials employed by systems of notable heat storage efficiency include expanded graphite [152], mesoporous silica [153], and polymers [127,154]. Heat and mass transfer simulations can lead to novel matrix material selection based on energy storage per unit volume, such as ideal zeolite crystal configurations that increase heat of adsorption and reduce water mobility [155].…”

Section: Thermochemical Heat Storagementioning

confidence: 99%

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Additive Manufacturing with Polymer Composites for Sustainable Applications

Cummings

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The evolving field of digital manufacturing includes additive manufacturing (AM) that builds computationally sliced parts layer-by-layer. AM popularity continues to grow partially due to its potential to accelerate the transition to a circular economy. This thesis aims to help mitigate waste products using four novel polymer composites designed and developed for use with either fused filament fabrication (FFF) or direct writing (DW). These polymer composites are: 1) Simulation verified and AM printed triply periodic minimal surface lattice structures embedded with heat storage materials. Diamond TPMS geometry bentonite/CaCl2 embedded prints of low packed configuration adsorb <19.1% total dry cylinder weight and reaches 38.3 °C bulk temperature when stacked in an open reactor. 2) Microporous zeolite composites for carbon capture strengthened using novel sacrificial polymer content. Zeolite 13X composite UCS increases from 4.92 (±1.22) to 7.75 (±0.75) MPa with the addition of 4 wt% CSR providing a composite BET surface area of 148 (±17)cm3/g. 3) Printer filaments made from rPP hospital blue wrap previously destined for landfill or incineration. MFI is reduced from 103 (±8) to 45 (±2)g/10mins when increasing SEBS content from 9.1 wt% to 20 wt%. The reduced MFI facilitates filament extrusion and subsequent printing of tensile and impact samples with tensile strength and impact energy absorption up to 22.5 (±1.2) MPa and 14 (±0.8) kJ/m2, respectively. 4) Epoxy matrix composites for;i) weight saving applications and ii) bone-like composite manufacture to improve surgical training and patient communication. Drilled compression strength of bone-like epoxy matrix composites encompassed those of drilled bone compression strength, ranging between a 5 wt% gypsum and 20 wt%hydroxyapatite composite of 2.7 (±0.3) MPa to a 1 wt% PE, 40 wt% GY and 5wt% HA composite of 6.5 (±0.5) MPa. This thesis contributes a furthered understanding of low-cost desktop AM as utilised for local acquisition of custom engineering products that necessitates minimal lead times and transportation.

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Section: Thermochemical Heat Storagementioning

confidence: 99%