Paraffin/red mud phase change energy storage composite incorporated gypsum-based and cement-based materials: Microstructures, thermal and mechanical properties

Li, Yong; Zhang, Shu; Hu, Dan; Zhang, Yunsheng; Lv, Henglin; Liu, Cheng; Chen, Yidong; Sun, Jun

doi:10.1016/j.jhazmat.2018.10.061

Cited by 48 publications

(18 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Cho et al (2019) showed that TPH can degrade and partition during chemical weathering; gasoline-range organics (C6–C10) and diesel-range organics (DRO; C10–C28), which are the more soluble and volatile compounds, can be transported to other environmental media, while oil-range organics (ORO; C28–C40), which are relatively non-mobile and recalcitrant, remain near the point of release [ 34 ]. A chemical understanding of TPH is helpful in designing an optimal remediation process and for estimating the environmental impact of these TPH [ 35 ]. TPH immobility in soils makes it challenging to dispose of contaminated soils.…”

Section: Discussionmentioning

confidence: 99%

Removal of Total Petroleum Hydrocarbons from Contaminated Soil through Microwave Irradiation

Cho

Myung

Kim

et al. 2020

IJERPH

View full text Add to dashboard Cite

In this study, we investigated the removal mechanism of total petroleum hydrocarbons (TPH) from soil by microwave heating. TPH contaminated soil was investigated to determine the desorption behavior of five carbon number-based fractions of TPH. The applied operating microwave power density influenced the final temperature that was reached during heating. For low operating power density applications, microwave effectiveness was limited due to the soil’s dielectric properties, which exhibited a direct relationship with temperature variation. Soil particle distribution could be attributed to permeability, which significantly influenced the evaporation of contaminated soil during the microwave treatment. The results indicate that the activation energy was correlated with the influence of particle size. The removal efficiency of the coarse soil reached 91.1% at 15 min, whereas that of fine soil was low. A total of 30 min had passed, and a removal efficiency of 71.2% was found for the fine soil. Residual TPH concentration was decreased when irradiation time was increased with a removal rate dependent on soil temperature variation. The surface functional groups of the contaminated soil were influenced by microwave irradiation, and changes in the hydrocarbon fraction affected contaminant removal.

show abstract

Section: Discussionmentioning

confidence: 99%

Removal of Total Petroleum Hydrocarbons from Contaminated Soil through Microwave Irradiation

Cho

Myung

Kim

et al. 2020

IJERPH

View full text Add to dashboard Cite

show abstract

“…Also, a hollow and a porous structure formed by SMs aggregates (Figure 7d,e) was observed, and this structure accounted for the inner−outer superhydrophobic properties of the SMs which supported results regarding hydrophobicity and durability. 53,54 As shown in the particle count distribution of the statistical data (Figure 7f), the median diameter of the particles was centered at ca. 1200 and 2000 nm, respectively.…”

Section: Superhydrophobicity and Durability Of The Sstmentioning

confidence: 85%

5S Multifunctional Intelligent Coating with Superdurable, Superhydrophobic, Self-Monitoring, Self-Heating, and Self-Healing Properties for Existing Construction Application

Pang

Qian

Zhang

et al. 2019

ACS Appl. Mater. Interfaces

Self Cite

View full text Add to dashboard Cite

There is a constant drive to develop ultra-high-performance multifunctional coatings for existing construction used in modern engineering technologies. For these materials to be used in unsound infrastructure protections, they are required to present enhanced robustness while bearing functionalities to meet multiple uses. Single-function coating is not smart enough to provide satisfactory protection, and the preparation process of multifunctional materials is complex, costly, and provides poor durability. Thus, existing coatings are not suitable to generate an intelligent closed-loop protection system. Herein, we report an innovative 5S multifunctional intelligent coating (5SC) for existing construction materials with superdurable, superhydrophobic, self-monitoring, self-heating, and self-healing properties. The 5SC material showed highly durable superhydrophobic properties as revealed by the main failure tests of building materials including physical friction (abrasion, scratching), 100% tensile strain, photoaging (3000 h of ultraviolet (UV) aging), acid corrosion (concentrated hydrochloric acid and sulfuric acid), and freeze–thaw aging (salty solution). The coated surface was highly sensitive to pressure, with monitoring thresholds from 1 to 30 000 N per 0.01 m2. It showed an early heating rate as high as 6 °C/min while maintaining very good self-monitoring and ice-melting drainage performance to protect the existing structures. This novel composite material is suitable for constructions in extreme areas where corrosion and freeze–thaw damage can occur. This multifunctional material presents a very broad range of applications and development potential in the construction field.

show abstract

“…In addition, organic materials have stable performance, low toxicity and low cost. However, there are also problems in organic materials such as low thermal conductivity, small energy storage density, and easy volatility (Kenisarin, 2014;Liu et al, 2019;Qu et al, 2020;Duan et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Investigation of Composite Phase Change Materials for Building Energy Saving

et al. 2021

View full text Add to dashboard Cite

Composites composed of paraffin wax and copper foam with porosity of 95 % and pore density of 15 ppi, 30 ppi, and 50 ppi were prepared by the melt impregnation method. Two building models of the same size were made using gypsum board. The roof of the experimental model was covered with 50ppi copper foam /paraffin composite phase change board, and the roof of the reference model was covered with foam insulation board. The heat transfer experiment was conducted with a constant heat flux. EnergyPlus software was also employed to simulate the energy saving effects of the building models. The size and material of the model established during the simulation are consistent with the experimental model. Experimental results showed that the phase change composite board delayed the highest indoor temperature for 1.5 h, and it also reduced the indoor maximum temperature by 1.2° and the indoor energy consumption by 21 %. The simulation results showed that the phase change composites board delayed the appearance of the highest indoor temperature by 1.3 h and reduced the highest indoor temperature by 1.1°C, and the maximum indoor energy consumption decreased by 19 %. The copper foam/paraffin composite material can effectively improve the thermal comfort and reduce the energy consumption of the building model.

show abstract

Paraffin/red mud phase change energy storage composite incorporated gypsum-based and cement-based materials: Microstructures, thermal and mechanical properties

Cited by 48 publications

References 23 publications

Removal of Total Petroleum Hydrocarbons from Contaminated Soil through Microwave Irradiation

Removal of Total Petroleum Hydrocarbons from Contaminated Soil through Microwave Irradiation

5S Multifunctional Intelligent Coating with Superdurable, Superhydrophobic, Self-Monitoring, Self-Heating, and Self-Healing Properties for Existing Construction Application

Experimental and Numerical Investigation of Composite Phase Change Materials for Building Energy Saving

Contact Info

Product

Resources

About