Utilization of carbonized water hyacinth for effective encapsulation and thermal conductivity enhancement of phase change energy storage materials

Qian, Heng-Yu; Fang, Hua; Zhou, Jiahong; Liang, Xiaofei; Pan, Yucheng

doi:10.1016/j.conbuildmat.2023.130841

Cited by 15 publications

(4 citation statements)

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“…Only 40-50% of water was reported to be recovered during the water hyacinth treatment method in earlier research. The use of water hyacinth for wastewater treatment and subsequent incorporation of treated water into concrete aligns with the principles of environmental sustainability [2,3,15]. When treated water was incorporated into the concrete mix (80% treated water, 20% plain water, and 15% silica fume), the CS improved significantly.…”

Section: 2study Limitations and Comparison With Other Studiesmentioning

confidence: 85%

“…The utilization of carbonized water hyacinth for enhancing phase change energy storage materials. The effectiveness of water hyacinth in encapsulating and improving the thermal conductivity of these materials, offering potential benefits in energyefficient building design [2]. Developing biomaterial fillers using eggshells, water hyacinth fibers, and banana fibers for green concrete construction [3].…”

Section: *Author For Correspondencementioning

confidence: 99%

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Integrated method for waste water treatment using water hyacinth and its application in concrete

2023

IJATEE

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This research emphasizes the critical role of water quality in concrete construction, with a specific emphasis on utilizing treated wastewater from wetlands. The study employs a dual-stage treatment process involving charcoal and aggregate layers for primary treatment and water hyacinths for secondary treatment. The unique aspect of the study lies in investigating water hyacinths' capacity to absorb nutrients and contaminants from wastewater, providing a potential solution for soil and water remediation. Water hyacinths, particularly their stems and leaves, have proven effective as indicators of heavy metal pollution in tropical regions, acting as a natural filter to extract pollutants from wastewater. The primary objective of this investigation is the removal of heavy metals from wastewater, enabling the use of treated water in concrete production at varying proportions: 20%, 40%, 60%, 80%, and 100%. Additionally, the study incorporates silica fume at a concentration of 15% to enhance the concrete's durability and resistance. Concrete specimens were meticulously prepared and subjected to mechanical property evaluations, with a comparison to conventional M20 grade concrete. The results indicate a notable enhancement in the mechanical properties of the concrete, particularly when utilizing 80% of the treated wastewater in the concrete mix. The dual-stage treatment process, involving charcoal, aggregate layers, and water hyacinths, effectively removed heavy metals from the wastewater. The incorporation of silica fume at 15% concentration contributed to the concrete's improved durability and resistance.

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Section: 2study Limitations and Comparison With Other Studiesmentioning

confidence: 85%

Section: *Author For Correspondencementioning

confidence: 99%

Integrated method for waste water treatment using water hyacinth and its application in concrete

2023

IJATEE

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“…Biomass-based porous carbon materials have abundant sources − and are widely used as a renewable porous carrier . Carbonated water hyacinth FC900 prepared by He et al at 900 °C loaded up to 75% on lauric-myristic acid paraffin slices. Luo et al mixed garlic peel with KOH and activated it at 800 °C to prepare an active garlic peel with a loading rate of 43.1 wt % to paraffin.…”

Section: Introductionmentioning

confidence: 99%

Thermal Performances and Stability of Capric Acid–Stearic Acid–Paraffin Wax Adsorbed into Expanded Graphite in Vacuum Conditions

Guo,

Fei,

et al. 2024

J. Phys. Chem. C

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A new form-stable composite phase change material (CPCM) of capric acid-stearic acid-paraffin wax/expanded graphite (CSPW/EG) was prepared by vacuum adsorption. CSPW has a minimum crystallization temperature of 21.9 °C at the eutectic mass proportion of 74.7:8.3:17 by the step cooling curve method and has a phase change temperature of 25.27 °C and an enthalpy of 126.82 J/g by differential scanning calorimetry (DSC). The mixing proportion of CSPW to EG was determined to be 10:1 based on the enthalpy change and leakage of CPCMs; the enthalpy and phase transition temperature of CSPW/EG were 119.26 J/g and 27.14 °C, respectively. The microstructure, crystal structure, and chemical structure of CSPW/EG were characterized by using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), and X-ray diffraction (XRD). The initial weight loss temperature of CSPW/EG was 159.8 °C, which is far beyond the working temperature. The heat storage-release experiments and 1000 melting−solidification cycles also confirmed that CSPW/EG has excellent heat energy storage and temperature control ability, thermal reliability, and great potential in practical engineering heat storage applications.

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“…It has a good foreground in the application of building energy conservation, solar energy utilization, heat recovery, temperature control, battery thermal management, and other elds. [3][4][5][6][7] According to phase change states, PCMs are generally divided into three categories: solid-liquid PCMs, solid-solid PCMs, and liquid-gas PCMs. Compared with solid-solid PCMs with low latent heat and liquid-gas PCMs with large volume change during phase transition, solid-liquid PCMs have been widely used in latent heat storage due to their high latent heat, low undercooling, nontoxicity, and good thermal stability.…”

Section: Introductionmentioning

confidence: 99%

Expanded vermiculite supported capric–palmitic acid composites for thermal energy storage

et al. 2023

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Utilization of carbonized water hyacinth for effective encapsulation and thermal conductivity enhancement of phase change energy storage materials

Cited by 15 publications

References 50 publications

Integrated method for waste water treatment using water hyacinth and its application in concrete

Integrated method for waste water treatment using water hyacinth and its application in concrete

Thermal Performances and Stability of Capric Acid–Stearic Acid–Paraffin Wax Adsorbed into Expanded Graphite in Vacuum Conditions

Expanded vermiculite supported capric–palmitic acid composites for thermal energy storage

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