combined slag energy storage mechanism
Self-compensation and attenuation mechanisms of carbide slag in multicycle thermochemical heat storage,Renewable Energy …
Utilizing industrial solid waste carbide slag for thermochemical heat storage presents an inexpensive and high-energy-storage-density solution with potential industrial applications. Investigating the performance of carbide slag in thermochemical heat storage cycles can offer insights for efficient resource utilization within the field of heat storage.
Thermochemical storage performance of methane reforming with carbon dioxide using high temperature slag …
High temperature slag can be used as energy source and catalyst for thermochemical energy storage process by methane reforming with carbon dioxide. Slag is almost non-porous material with dense material, and its activation energy is higher than that of common catalyst, so the slag only has high catalytic activity under high temperature.
Carbide slag recycling to fabricate shape-stable phase change composites for thermal energy storage …
The mining and processing of traditional skeleton materials inevitably generates carbon emissions and pollutes the surrounding environment. 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 …
Synergistic co-combustion of carbon-rich fraction from coal gasification fine slag and corncob char: Performance, mechanism…
The activation energy was reduced due to the blending of RC-CC, and the activation energy was lowest (132.19 kJ/mol) when the RC adding ratio was 60%. The co-combustion process was controlled by the F3 model (chemical third-order reaction kinetics), and it was a typical gas-solid phase reaction with a progressive process from the outsides …
Molten salt corrosion mechanisms of nitrate based thermal energy storage materials for concentrated solar …
Corrosion mechanisms for current heat transfer fluid and storage media used in CSP plants working at temperatures from 300 C to 600 C are reviewed in this paper. The studies found in the literature show that these mechanisms are influenced by the impurities present in the salt and the relation between Mg(NO 3 ) 2, moisture, CO 2, …
Journal of Energy Storage | Vol 76, 15 January 2024
Development of the supercapacitor efficiency of the two-dimensional graphene oxide decorated by nano magnetite through building novel nanocomposites using nanoparticles of cobalt, manganese, vanadium, and zirconium oxides. Nagi M. El-Shafai, Mohamed S. Ramadan, AbdulAziz A. Alayyafi, Yasser S. Mostafa, Ibrahim El-Mehasseb. Article 109727.
Solar-assisted combined cooling and power system integrating energy storage …
This paper proposes a solar-assisted combined cooling and power system that integrates energy storage and desulfurization for recovering exhaust waste heat and solar energy. Firstly, the combined cooling and power system model is built in the MATLAB environment, and its reliability is verified with the help of previous references.
Simultaneous CO2 capture and thermochemical heat storage by modified carbide slag …
Utilizing industrial solid waste carbide slag for thermochemical heat storage presents an inexpensive and high-energy-storage-density solution with potential industrial applications. Investigating the performance of carbide slag in thermochemical heat storage cycles can offer insights for efficient resource utilization within the field of heat storage.
Self-compensation and attenuation mechanisms of carbide slag …
This study examined the characteristics of cyclic heat storage (dehydration) and heat release (hydration) of carbide slag by establishing a multicycle thermochemical heat storage experimental system combined with advanced …
Review Accelerated carbonation of steel slag: A review of methods, mechanisms …
Wet carbonation involves a multiphase reaction involving gas-liquid-solid interactions. In an aqueous environment, the precipitation rate of Ca 2+ /Mg 2+ on the surface of steel slag accelerates, consequently enhancing the rate of carbonation reaction [69]. Fig. 2 illustrates the mechanism of wet carbonation of steel slag based on a …
A multi-scale experimental investigation of the feasibility of using integrated coal gasification combined slag …
Moreover, substituting 30% of the cement with IGCC slag would reduce the embodied energy by approximately 12% and the CO 2 emission by approximately 28%, respectively. The higher reduction in CO 2 emission comes from reducing the amount of limestone, which decomposed to CaO and CO 2 during the production of cement clinkers …
Mechanism of arsenic distribution and migration during iron extraction by copper slag-steel slag combined …
In this study, a combined reforming and reduction smelting of copper slag-steel slag was proposed to recover iron (Fe) from solid waste while lowering the environmental risks associated with the management of such waste. In this process, copper slag was mixed with steel tailing to sinter, and made into pellets after magnetic separation.
Development of a novel alkali-activated slag-based composite containing paraffin/ceramsite shape stabilized …
Shape-stabilized phase change material (SSPCM) was prepared with paraffin and ceramsite. • A novel alkali-activated slag-based thermal energy storage composite (ASTESC) was developed. • The thermo …
Integration of compressed air energy storage into combined heat …
The results show that the round-trip efficiency and the energy storage density of the compressed air energy storage subsystem are 84.90 % and 15.91 MJ/m 3, respectively. The exergy efficiency of the compressed air energy storage subsystem is 80.46 %, with the highest exergy loss in the throttle valves.
Synergistic effect and mechanism of lithium slag on mechanical properties and microstructure of steel slag …
In this study, steel slag and lithium slag were used to replace cement to address the low activity of steel slag, which limits its large-scale utilization. The compressive strength, flow properties, dissolution characteristics, hydration products, and microstructure of composite cementitious materials containing steel slag and lithium slag were …
Experimental study of carbon fiber reinforced alkali-activated slag composites with micro-encapsulated PCM for energy storage …
Alkali-activated slag composites with micro-encapsulated PCM and CF were prepared for energy storage. • Using CF can improve mechanical properties of both OPC-MPCM and AAS-MPCM dramatically. • Mechanism of CF reinforcement in the composites was
Corrosion mechanisms in molten salt thermal energy storage for concentrating solar …
At applied potentials close to 0 and O −2 ion concentrations greater that 10 −11 (pO −2 < 11) NiO is thermodynamically stable as a passive film (shaded blue).As the oxide ion concentration decreases below approximately 10 −15, the Ni +2 ion becomes thermodynamically favourable and acidic corrosion occurs (shaded red). ). Between these …
Cyclic performance characterization of a high-temperature thermal energy storage system packed with rock/slag pebbles granules combined …
The VF of PCMs influences the system output, both in terms of energy storage and release, the heat storage period and the total energy stored increased by 4.5%, when the VF of the PCM70 increases ...
Mechanical Performance Optimization and Microstructural Mechanism Study of Alkali-Activated Steel Slag–Slag …
The optimal proportion of alkali-activated steel slag–slag cementitious materials is investigated by considering the combined effects of steel slag content, alkali content, water glass modulus, and water–binder ratio using the Box–Behnken design in response surface methodology. Qualitative and semi-quantitative analyses of X-ray …
Highly Cyclic Stability and Absorbent Activity of Carbide Slag Doped with MgO and ZnO for Thermochemical Energy Storage …
Carbide slag is a solid waste with a high content of reactive CaO, which can be used as an active material for the chemical absorption of CO[2] and calcium looping. Calcium looping of CaO-based absorbents is one of the most promising methods of thermochemical energy ...
Self-compensation and attenuation mechanisms of carbide slag in multicycle thermochemical heat storage
tively simple principle [3]. Thermochemical heat storage exhibits superior energy storage density and the ability to achieve long-term energy storage compared with sensible and latent heat storage, mak-ing it a promising technology [6–8
Materials | Free Full-Text | Preparation and Strength Formation Mechanism of Calcined Oyster Shell, Red Mud, Slag…
The use of bulk solid-waste iron tailing (IOT), red mud (RM), and oyster shells to prepare cemented paste backfill (CPB) can effectively solve the ecological problems caused by industrial solid waste storage and improve the utilization rate of such materials. In this study, a new type of CPB was prepared by partially replacing slag with …
Self-compensation and attenuation mechanisms of carbide slag in multicycle thermochemical heat storage …
Utilizing industrial solid waste carbide slag for thermochemical heat storage presents an inexpensive and high-energy-storage-density solution with potential industrial applications. Investigating the performance of carbide slag in thermochemical heat storage cycles can offer insights for efficient resource utilization within the field of heat storage.
A novel composite for thermal energy storage from alumina hollow sphere/paraffin and alkali-activated slag …
A tremendous quantity of energy has been used in the building and a huge amount of CO 2 emitted to maintain comfortable indoor temperatures. In order to lower existing level of CO 2 emissions, using eco-friendly alternative binders instead of ordinary Portland cement (OPC) and improving buildings'' energy efficiency are indispensable.
Analysis of Hydration Mechanism of Steel Slag-Based …
In order to realize the resourceful, large-scale, and high-value utilization of steel slag, which is a bulk industrial solid waste, and to reduce the use of cement-based cementitious materials, this study adopted the coupled excitation effect of sodium carbonate–magnesium oxide–desulfurization gypsum to excite steel slag-based …
Thermal-chemical conversion of sewage sludge based on waste heat cascade recovery of copper slag: Mass and energy …
Copper slag waste heat can provide energy and metallic oxide in copper slag has catalytic effect on carbonaceous solid waste gasification reaction. The gasification energy absorption characteristics and kinetics of typical solid waste, sludge, enteromorpha and lignite with air as oxidation agent has been studied using copper slag as heat carrier.
A novel composite for thermal energy storage from alumina hollow sphere/paraffin and alkali-activated slag …
Semantic Scholar extracted view of "A novel composite for thermal energy storage from alumina hollow sphere/paraffin and alkali-activated slag" by G. Sang et al. DOI: 10.1016/J.CERAMINT.2021.02.169 Corpus ID: 233918575 A novel composite for thermal energy
Effects of two plant species combined with slag-sponges on the …
Plants are an important part of CWs, but the strengthening effect and mechanism of plants on slag-sponge CWs are still unknown, thus affecting the application of slag-sponge CWs (Wang et al. 2020b). Secondly, the biological mechanism of slag-sponge CW depends on the plant-microorganism interaction, but the plant-microorganism …
Adsorption mechanism of a new combined collector (PS-1) on unburned carbon in gasification slag …
The flotation adsorption mechanism of PS-1 on UC is revealed by experiment/molecular dynamics simulation and characterization analysis. Results show that long-chain hydrocarbons in PS-1 are adsorbed on the non-polar region of UC by Van der Waals force, while –COOH groups in PS-1 are adsorbed on the polar sites of –COOH and …
Techno-economic assessment and mechanism discussion of a cogeneration shared energy storage system utilizing solid-state thermal storage…
For example, Karnot battery is a new large-scale energy storage system based on thermal cycle and heat (cold) storage technology. It can be expanded from electric energy storage system to combined cooling, heating, and power system [9]. He et al. [10