This innovative work proposed to fabricate shape-stable phase change materials (SSPCMs) with carbide slag to utilise industrial solid waste and protect precious natural resources. Seven SSPCMs were fabricated with different mass ratios of industrial carbide slag to sodium nitrate by cold-compression hot-sintering method, and key performance was …
Industrial carbide slag is suitable as skeleton material for SSPCM fabrication.Sample CC6 with mass fraction 50% of carbide slag reached the optimal performance.Carbide slag has chemical compatibility with sodium nitrate. • Sample CC6 achieved a TES density of 447 KJ/kg in the range of 100–400 C. ...
Anorthite solar thermal energy storage ceramics were fabricated from magnesium slag solid waste by pressureless sintering. The effects of CaO/SiO 2 ratio and sintering temperature on the physical, chemical, and thermophysical properties of ceramics were explored. ...
There are several works reported on thermal cycling resistance of slag as energy storage material. [2] Allen [51] found slag broke off after 60 cycles, between 30 °C and 510 °C. Calvet [15] performed several charging and discharging cycles successfully at laboratory scale.
As mentioned earlier, waste heat recovery is a critical aspect of the DES. To improve the efficiency of the entire DES, each WHRT should match the energy quality. Fig. 1 illustrates an energy flow tower that displays the energy quality levels of various waste heat sources and the corresponding matched technologies. ...
Development of thermal storage material from recycled solid waste resources can further enhance the economic and environmental benefits of thermal energy storage system. Thermal properties of steel slag as sensible heat storage material are examined and further enhanced by Na 2 CO 3 activation.
Here we explore the inherent potential of recovering energy and re-using materials from waste streams, high-temperature slag, and re-investing the revenues for …
Recent advances in energy storage and applications of form‐stable phase change materials with recyclable skeleton. With the expansion of the global population, the energy shortage is becoming increasingly acute. Phase change materials (PCMs) are considered green and efficient mediums for thermal energy storage,….
The energy consumed in high temperature processing of metals is distributed between metal, slag, off-gas, and the natural losses to the atmosphere. The slag thermal energy represents about 10–90% of the output energy depending on the slag/metal ratio and the discharge temperature.
DOI: 10.1016/J.EGYPRO.2009.02.314 Corpus ID: 108452311 Influence of particle size on the carbonation of stainless steel slag for CO2 storage @article{Baciocchi2009InfluenceOP, title={Influence of particle size on the carbonation of stainless steel slag for CO2 storage}, author={Renato Baciocchi and Giulia Costa and Alessandra Polettini and Raffaella Pomi}, …
Slag is one of the main waste materials of the iron and steel manufacturing. Every year about 20 × 10 6 tons of slag are generated in the U.S. and 43.5 × 10 6 tons in Europe. The valorization of this by-product as heat storage material in thermal energy storage (TES) systems has numerous advantages which include the possibility to extend …
In order to make the test closer to the actual working condition, paraffin and tape were used to seal the side of the sample to ensure that CO 2 gas can only enter the modified magnesium slag based solid waste storage storage backfill materials (MSB) sample from the axial direction. ...
The good thermal storage performance of NaNO 3 /AC C-PCMs makes it potential candidate in high-temperature thermal storage fields like industrial waste heat recovery and solar energy storage. In a word, the application potential of metallurgical slag in the field of energy saving was well demonstrated by this study.
Slag is one of the main waste materials of the iron and steel manufacturing. Every year about 20 × 10 6 tons of slag are generated in the U.S. and 43.5 × 10 6 tons in …
DOI: 10.1016/j.est.2022.104256 Corpus ID: 247179677 Carbide slag based shape-stable phase change materials for waste recycling and thermal energy storage @article{Yaxuan2022CarbideSB, title={Carbide slag based shape-stable phase change materials for waste recycling and thermal energy storage}, author={Xiong Yaxuan and …
The iron and steel industry is an energy-intensive sector, generating large amounts of waste during the steelmaking process, such as CO 2, metallurgical slag, and wastewater. It is promising that it is possible to operate a CO 2 capture process based on a reaction with SS on an industrial scale, since SSs are often cheap and readily available …
To make full use of industrial solid waste, this work innovatively used carbide slag as skeleton material and Na 2 CO 3 as phase change material (PCM) to …
Steel slag waste produced by the steel industry accumulates in open areas or is disposed of in landfills, causing harm to the environment and human health. Valorizing steel slag through comprehensive data analysis is imperative and could add value to the product with respect to energy conversion and storage applications. This study …
They can effectively capture and store substantial quantities of wasted heat for subsequent utilization within industrial processes. Among these TES technologies, …
The preparation method of solid waste-based PCMs is expounded. • Various application scenarios of solid waste-based PCMs are elaborated. • The shortage and development direction of solid waste-based PCMs are pointed out. Phase change energy storage technology (PCEST) can improve energy utilization efficiency and solve …
To make full use of industrial solid waste, this work innovatively used carbide slag as skeleton material and Na 2 CO 3 as phase change material (PCM) to fabricate shape-stable phase change composites (SSPCCs) via the cold-compression & hot-sintering method.
used as a source of waste energy. In this study, the technical possibilities of recovery slag''s physical. enthalpy from grate-fired district heating boiler of 45 MW thermal capacity are ...
Massive accumulation of industrial carbide slag tend to cause ecological environment pollution and greenhouse gas emission. This innovative work proposed to …
They can effectively capture and store substantial quantities of wasted heat for subsequent utilization within industrial processes. Among these TES technologies, solutions employing a single tank with a packed-bed storage configuration emerge as a promising choice.
In this paper, a cost-effective 400 kWh thermal energy storage prototype for waste heat recovery at high temperature is tested over different charging and discharging conditions. The technology studied is based on the use of steel slag as thermal energy storage material and air as heat transfer fluid, in a packed bed reactor of 1 m3. Since the ...
Using steel slag to prepare high-temperature (>500 C) PCMs was an effective way to achieve its high value-added utilization as a potential heat storage medium in a variety of applications, such as solar energy storage, power peak shaving, and industrial waste
Using steel slag to prepare high-temperature (>500 C) PCMs was an effective way to achieve its high value-added utilization as a potential heat storage medium in a variety of applications, such as solar energy storage, power peak shaving, and industrial waste heat ...
In this paper, a cost-effective 400 kWh thermal energy storage prototype for waste heat recovery at high temperature is tested over different charging and discharging conditions. …
A novel organic Rankine power generation system driven by mulled slag waste heat and solar energy was designed according to the characteristics of the steel slag hot smothering process. The heat transfer and power conversion processes of the system were simulated, and the influence of solar collector area, regenerative coefficient, work ...
Thermal energy storage (TES) in molten salts is the storage dominating technology in solar power applications today. In two-tank molten salt storage systems energy density ranges from 30 to 70 kW ...
DOI: 10.1016/j.est.2023.109736 Corpus ID: 265390074 Investigation on low-carbon shape-stable phase change composite by steel slag and carbide slag for solar thermal energy storage Sewage sludge and red mud, as …
Starting this year, thermal energy researchers in Spain''s Basque Country will test the use of slag as thermal energy storage within the steelmaking process, to cut the use of fossil fuel for heat for the world''s largest steel producer, Arcelor Mittal. Slag is the most widely-generated waste byproduct of the iron and steel industry, with ...
To bridge the above gaps, this work firstly adopted CFA to modify steel slag, both of them belonging to solid waste. The modified steel slag (M−SS) was further used to shape-stabilize eutectic salt (i.e., NaCl-KCl) for high-temperature thermal energy storage
Carbide slag based shape-stable phase change materials for waste recycling and thermal energy storage J. Energy Storage, 50 ( 2022 ), Article 104256, 10.1016/j.est.2022.104256 Google Scholar
The Fremont, Calif.-based flow battery startup announced earlier this month that it''s developed a process to use recycled vanadium at slightly lower purity levels -- say, 98.5 percent -- as its ...
In this study, the energy and exergy of the organic Rankine cycle driven by steel slag waste heat and solar energy were analyzed for various system configurations. In the system design, the technology of crushing waste heat pressurized hot smothering technology of steel slag rolls was considered. Subsequently, a regenerator was …
In this study, a smothered slag waste-heat and solar-driven ORC power generation system was proposed to effectively use steam waste heat after thermal smother-ing treatment. …
high temperature steel slag, which generates a pressure of 0.2–0.4 MPa, causing f-CaO in the slag to dissipate rapidly, thus stabilizing and pulverizing the slag. Figure 2 displays the steel slag waste heat system combined with the solar power system. The
Nevertheless, there was a decrease in mechanical strength from 134.1MPa to 44.9MPa, and a reduction in thermal energy storage density from 483.2J/g to 459.3J/g. Based on both macroscopic properties and microscopic morphology, the phase change composite materials fabricated in this work exhibit excellent comprehensive property.
1. Introduction In many power generation systems such as CSP (concentrated solar power) [1], [2], [3], adiabatic CAES (compressed air energy storage) [4] or, in industrial waste heat recovery applications [5], TES (thermal energy storage) is a noble solution to save energy and increase significantly the efficiency of different …
Coal continues to dominate in the structure of the heat production system in some European countries. Coal-fired boilers in district heating and power generation systems are accompanied by the formation of large quantities of slag and ash. Due to considerable high temperature, slag may be used as a source of waste energy. In this study, the technical …
Development of thermal storage material from recycled solid waste resources can further enhance the economic and environmental benefits of thermal energy storage system. Thermal properties of steel slag as sensible heat storage material are …