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Bubble-driven flow enhancement of heat discharge of latent heat thermal energy storage …
In this paper, the use of bubble-driven flow on phase change material (PCM) is proposed to improve the discharge performance of a latent heat thermal energy storage system (LHTES). The upward momentum of bubbles due to its density difference can agitate liquid PCM and increase the flow velocity of liquid PCM to enhance heat …
Performance enhancement of latent heat thermal energy storage by bubble …
In conclusion, the performance of the LHTES is significantly improved by bubble-driven flow. When the rate of energy storage was compared between the WB and WOB cases, the results of the WB showed that the mean rate of energy storage increased by 218, 173, and 159% for 0.2, 0.4, and 0.6 L/min cases, respectively.
Bubble-driven flow enhancement of heat discharge of latent heat thermal energy storage …
In this paper, the use of bubble-driven flow on phase change material (PCM) is proposed to improve the discharge performance of a latent heat thermal energy storage system (LHTES). The upward ...
Energy assessment and thermodynamic evolution of a novel semi-clathrate hydrate cold storage system with internally circulating gas bubble ...
As an efficient method of energy storage, hydrate cold storage can also be combined with energy sourced from electricity and biomass. Among them, Obara et al. [17] used the volume differences that are caused by hydrate cyclic phase changes for electricity generation and stored cold through heat exchange to achieve cold electricity …
Imaging Single Nanobubbles of H2 and O2 During the Overall Water Electrolysis with Single-Molecule Fluorescence Microscopy …
When the coverage density of gas bubble was high (at 0.20 V), surrounding dissolved oxygen tends to diffuse to adjacent oxygen bubbles due to a high activation energy required for forming a new ...
The Future of Energy Storage | MIT Energy Initiative
Video. MITEI''s three-year Future of Energy Storage study explored the role that energy storage can play in fighting climate change and in the global adoption of clean energy grids. Replacing fossil fuel-based power generation with power generation from wind and solar resources is a key strategy for decarbonizing electricity.
A new approach exploiting thermally activated delayed fluorescence molecules to optimize solar thermal energy storage …
We propose a new concept exploiting thermally activated delayed fluorescence (TADF) molecules as photosensitizers, storage units and signal transducers to harness solar thermal energy. Molecular composites based on the TADF core phenoxazine–triphenyltriazine (PXZ-TRZ) anchored with norbornadiene (NBD) were …
Inorganics | Free Full-Text | Functional Characteristics of Antioxidant Long-Life Ultra-Fine Bubble Hydrogen Water …
Free radicals, including reactive oxygen species resulting from oxidative stress, are one of the major causes of biological disorders and are known to be closely related to the onset of lifestyle-related diseases such as aging, atherosclerosis, and diabetes, and their complications. Hydroxyl radicals, the most reactive and cytotoxic of …
Molecules | Free Full-Text | Fluorescence Resonance Energy Transfer Systems in Supramolecular Macrocyclic Chemistry …
The fabrication of smart materials is gradually becoming a research focus in nanotechnology and materials science. An important criterion of smart materials is the capacity of stimuli-responsiveness, while another lies in selective recognition. Accordingly, supramolecular host-guest chemistry has proven a promising support for building …
Energy & Environmental Science
in energy storage and chemical production,1–4 e.g. water split-ting rections5,6 and in the chlor-alkali7 industry. For a typical process, it is widely acknowledged that the generated …
Fluorescent Fiber-Shaped Aqueous Zinc-Ion Batteries for Bifunctional Multicolor-Emission/Energy-Storage …
Originating from effective dendrite suppression of Zn anodes and multiple active sites of freestanding Prussian blue cathodes, high energy density (0.17 Wh·cm-3) and long-term cyclability (78.9% capacity retention after 1500 cycles) are achieved for FFAZIBs.
Review and Perspectives on CO2 Bubble Dynamic Characteristics in Different Liquids during Carbon Capture, Utilization, and Storage …
Carbon dioxide (CO 2) bubbles are common during carbon capture, utilization, and storage (CCUS) processes and have many impacts on water conservancy machinery, metallurgy, and the chemical industry.To explore the dynamic characteristics of CO 2 bubbles in different liquids in CCUS, the motion mechanism of CO 2 bubbles was …
A state-of-the-art review on laser-induced fluorescence (LIF) …
The fluorescence lifetime, τ, is an inherent property that is independent from the laser intensity fluctuations and depends on the fluorescent molecules temperature given by: (11) τ = A exp (E a R T) where E a is the activation energy, R …
Local measurement of oxygen transfer around a single bubble by planar laser-induced fluorescence …
However, PBA is the fluorescent dye most commonly used to measure the instantaneous concentration of oxygen; the transfer may take place at a plane air–water interface (Herlina and Jirka, 2004, Lee, 2002, Schladow et …
Pumped-storage hydroelectricity
Pumped-storage hydroelectricity ( PSH ), or pumped hydroelectric energy storage ( PHES ), is a type of hydroelectric energy storage used by electric power systems for load balancing. The method stores energy in the form of gravitational potential energy of water, pumped from a lower elevation reservoir to a higher elevation.
Efficient and high-power subsea bubble energy harvesting by …
The bubble energy harvesting system can effectively convert the subsea gas potential energy into electrical energy for the subsea observation equipment, but a …
Pumped Storage Hydropower | Department of Energy
What is Pumped Storage Hydropower? Pumped storage hydropower (PSH) is a type of hydroelectric energy storage. It is a configuration of two water reservoirs at different elevations that can generate power as water moves down from one to the other (discharge), passing through a turbine. The system also requires power as it pumps water back into ...
Heat transfer enhancement of latent heat thermal energy storage with nanoparticle by bubble …
When the latent heat thermal energy storage unit used the phase change material, which applied both bubble-driven flow and nanoparticles, the time for full charging reduced by up to 23.3 %. The average temperature difference between the heat transfer fluid inlet and the latent heat thermal energy storage unit outlet increased by 1.64 times.
A review and perspective on micro and nanobubbles: What They …
Abstract. Over the past two decades, there has been a rapid growth in the research and extraordinary applications of micro and nanobubbles due to their unique physicochemical properties beyond conventional bubbles including large specific surface …
Superior Energy Storage Capability and Fluorescence Negative …
DOI: 10.1002/smll.202309992 Corpus ID: 266752453 Superior Energy Storage Capability and Fluorescence Negative Thermal Expansion of NaNbO3 -Based Transparent Ceramics by Synergistic Optimization. Sodium niobate (NaNbO3, NN)-based lead-free ...
Efficient bubble/precipitate traffic enables stable seawater …
Here we present a vital microscopic bubble/precipitate traffic system (MBPTS) by constructing honeycomb-type 3D cathodes for robust anti-precipitation …
A new approach exploiting thermally activated delayed fluorescence molecules to optimize solar thermal energy storage …
We propose a new concept exploiting thermally activated delayed fluorescence (TADF) molecules as photosensitizers, storage units and signal transducers to harness solar thermal energy. Molecular ...
Hybrid photothermal–photocatalyst sheets for solar-driven overall …
Photocatalysis can enable solar energy to be stored directly in the form of chemical fuels such as green hydrogen produced from water splitting, but its need …
Imaging nanobubble nucleation and hydrogen spillover during …
As a promising technology for energy storage ( 1 ), electrochemical water splitting generates hydrogen and oxygen on the two opposite electrodes, i.e., cathode …
Superior Energy Storage Capability and Fluorescence Negative …
Superior Energy Storage Capability and Fluorescence Negative Thermal Expansion of NaNbO 3-Based Transparent Ceramics by Synergistic Optimization Xiangfu Zeng, Xiangfu Zeng College of Materials Science …
Modelling studies for influence factors of gas bubble in compressed air energy storage …
Fig. 1 schematically shows a system of CAESA (compressed air energy storage in aquifers). Typically, there are two stages in running a CAESA system. The first stage is to form a big gas bubble in the target aquifer by …
(PDF) Development of Pulsed Discharge Inside Bubble in Water
The pulsed high voltage was applied to the wire by an inductive energy storage system pulsed-power generator. The streamer discharge was prop- agated into the bubble from the wire tip with a ...
Gas Bubble Photonics: Manipulating Sonoluminescence Light …
A soap bubble floating in the air, air bubbles rising from a scuba diver in water, and bubbles of gas rising in a soft drink are just a few examples of one …
An overview on recent advances of reversible fluorescent probes …
2.2. High selectivity It is well known that selectivity is an important characteristic for fluorescent probes. The studies of the characteristics on reversible fluorescent probes have shown that reversible fluorescent probes generally possess high selectivity. Weerasinghe et al. synthesized the rhodamine B derivative 1, which can bind …
Energy Storage | Department of Energy
Energy Storage. The Office of Electricity''s (OE) Energy Storage Division accelerates bi-directional electrical energy storage technologies as a key component of the future-ready grid. The Division supports applied materials development to identify safe, low-cost, and earth-abundant elements that enable cost-effective long-duration storage.
Smart dual-functional energy storage/fluorescent textile device …
DOI: 10.1016/J.CEJ.2021.131274 Corpus ID: 237662680 Smart dual-functional energy storage/fluorescent textile device based on a new redox-active Mn-doped ZnS solid-gel electrolyte Smart textiles are transforming the future of wearable technology, and due to ...
Imaging nanobubble nucleation and hydrogen spillover during electrocatalytic water …
The ability to fully characterize nano-bubble nucleation and growth in electrochemical water splitting can have a major impact on our understanding of the structure– function relationship of the heterogeneous electrode surface and help us design electrocatalysts with improved activity. Nanobubbles are small pockets of gaseous molecules (2 ...
Ultrasound-modulated fluorescence based on fluorescent microbubbles …
1. Introduction Ultrasound-modulated fluorescence (UMF) has been demonstrated in the past years. 1 – 5 One of its unique features is that it can provide tissue fluorescent contrast with ultrasound resolution. 1 – 4 The concept of UMF is similar to ultrasound-modulated optical tomography, which has been widely studied. 6 – 18 A …
Energy storage
Energy storage is the capture of energy produced at one time for use at a later time [1] to reduce imbalances between energy demand and energy production. A device that stores energy is generally called an accumulator or battery. Energy comes in multiple forms including radiation, chemical, gravitational potential, electrical potential ...
Hierarchically Engineered Nanocarbon Florets as Bifunctional Electrode Materials for Adsorptive and Intercalative Energy Storage …
Three-dimensional dendritic nanostructured carbon florets (NCFs) with tailored porosity are demonstrated as electrochemically versatile electrodes for both adsorptive and intercalative energy storage pathways. Achieved through a single-step template-driven approach, the NCFs exhibit turbostratic graphitic lamellae in a floral assembly leading to high specific …
Experimental and analytical study on continuous frozen/melting processes of latent thermal energy storage driven by bubble …
In this paper, the latent thermal energy storage device driven by bubble flow is experimentally investigated. ... Direct contact PCM–water cold storage Appl Energy, 87 (2010), pp. 2652-2659 View PDF View article …
Excellent Low-E Energy Storage and Fluorescence Temperature …
The results show that the pellucidity and energy-storage characteristics improve with decreasing grain and domain sizes. A relatively high T% of 45.6% (at 710 nm) and recoverable energy-storage density (Wrec ~3.46 J …
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