Delivery and utilization of photo-energy for temperature control
5 · Thus, environmental temperature, energy utilization, driving, and output controllability are important for long-term thermal control for temperature balance. 1-4
Review on solid-solid phase change materials for thermal energy storage
Solid-liquid phase change materials (SL-PCMs) change their internal molecular arrangement from an ordered crystalline structure to a disordered amorphous one when temperature exceeds a critical threshold (i.e., the phase transition temperature). An increase in vibrational energy breaks the supramolecular bonds between individual
Intelligent color-changing hygrothermal-controlled film for
Passive PTM techniques include radiative and conductive thermal regulation [18], [19], phase change thermal regulation [20] and adsorptive thermal regulation [17], [21].Specifically, radiative cooling of textiles is mainly achieved by introducing micro-nano scatterers [22], [23], which has limitations in high humidity and thermal environment
Retinomorphic optoelectronic devices for intelligent machine
Therefore, retinomorphic optoelectronic devices may provide a new and effective approach for improving information processing efficiency and energy consumption problems in the era of big data. Here, we present an overview of the recent advances in retinomorphic machine vision technology from principle to device.
Research progress of phase change cold energy storage
It has reference value for future development of phase change energy storage materials for cold chain logistics of aquatic products. However, to avoid temperature fluctuation, refrigeration equipment with accurate temperature control is required, such as dual [5]
Energy-saving thermochromic smart shield based on
High ambient temperature in summer will trigger the phase change of A-DN Smart-Shield to block sunlight, and indoor energy is prevented from dissipating to the environment during the winter. Meanwhile, because of low heat transfer coefficient and high specific heat capacity of the A-DN Smart-Shield ( Table .1 ), the heat in the surrounding is
Real-time smart lighting control using human motion tracking
A smart lighting system provides automatic control of lighting illumination and color temperature for high quality of life as well as energy savings in smart cities. A real-time activity understanding system with accurate human location estimation under varying illumination is required for smart lighting control, since comfortable lighting
Nano Energy
Latent heat storage is also known as phase change energy storage. In this energy storage method, phase change materials (PCMs) can absorb or release a large amount of latent heat and the temperature change little during phase change process [1], [2]. The main advantages of phase change energy storage are high energy storage
A review on phase change energy storage: materials and applications
Comprehensive lists of most possible materials that may be used for latent heat storage are shown in Fig. 1(a–e), as reported by Abhat [4].Readers who are interested in such information are referred to the papers of Lorsch et al. [5], Lane et al. [6] and Humphries and Griggs [7] who have reported a large number of possible candidates for
Phase change materials for smart textiles – An overview
Abstract. Phase change materials (PCM) take advantage of latent heat that can be stored or released from a material over a narrow temperature range. PCM possesses the ability to change their state with a certain temperature range. These materials absorb energy during the heating process as phase change takes place and
Phase-change materials for intelligent temperature regulation
Phase-change materials are classified based on different mechanisms for intelligent temperature regulation. • Vanadium dioxide can be applied to intelligent
Photoresponsive hydrogel-based soft robot: A review
Fluorescent color-changing hydrogels change color in response to environmental conditions (e.g., temperature, humidity), so they can be applied as temperature/humidity sensors to detect the environment. Additionally, it can be utilised as a fluorescent probe for cell imaging and diagnostics.
Thermo-responsive color-changeable photonic materials: A review
In this review, the research progress in thermo-sensitive color-changing materials is summarized, as shown in Fig. 3. Various structures of temperature-sensitive color-changing materials and the synthetic strategies are discussed. Meanwhile, diverse potential applications of thermochromic materials are introduced.
Photosensitive discoloration material
2.Product description Photosensitive microcapsule powder is a kind of microcapsule powder containing 2% - 5% photosensitive dyes. It is suitable for water-based ink, oil-based ink, coating and plastic injection and extrusion. Average particle size: less than 10um Moisture content: less than 3% 3.Product characteristics Photosensitive microcapsule
Silicon photonics-based high-energy passively Q -switched laser
A sudden change of Q to a high state (by reducing the loss) allows stimulated emission to take place, causing an instantaneous conversion of stored energy in the gain medium into signal photons
Structural characteristics and thermal performances of
As an inexpensive and easily available organic phase change material (PCM), paraffin has good energy storage effect and can realize efficient energy storage and utilization. In this work, paraffin section–lauric acid (PS–LA) and paraffin section–myristic acid (PS–MA) were prepared by melting blending paraffin section
Smart Photochromic Materials Triggered with Visible Light
Molecular photoswitches are molecules that reversibly interconvert between two forms, A and B, with distinct absorption spectra upon irradiation with light. 1
High performance organic-inorganic hybrid material with multi-color
Therefore, the charging and discharging state of the device can be directly determined by the color of the device. In order to express the relationship between the state of energy storage and the parameters of color change, the in-situ optical response of the device at 600 nm were recorded under current density of 0.1 mA cm −2 (Fig. 6 a
Design and Operational Strategy Research for Temperature Control
Energy storage technology is critical for intelligent power grids. It has great significance for the large-scale integration of new energy sources into the power grid and the transition of the energy structure. Based on the existing technology of isothermal compressed air energy storage, this paper presents a design scheme of isothermal
Preparation and characterization of intelligent photochromic and
Abstract: A microcapsule with intelligent photochromic and energy storage temperature adjustment function has been prepared with melamine-formaldehyde as wall material via
Raspberry‐Shaped Thermochromic Energy Storage Nanocapsule with Tunable Sunlight Absorption Based on Color Change for Temperature
When the temperature is higher than the phase change temperature of paraffin@PSG, the color of amino-TLD@SiO 2 turns to white with more reflection of sunlight so that it reduces the absorption of thermal energy and prevents the further increase of
Adaptive multi-temperature control for transport and storage
Principle of AMTC. Drawing on the concept in Fig. 1c, d, we construct a two-dimensional multi-temperature control system using conduction heat transfer (Fig. 2).The system comprises a heat source
Temperature‐Responsive Thermochromic Phase Change Materials
The designed TC-PCMs have a high photothermal conversion efficiency by using different styles of reversible thermochromic microcapsules, which can intelligently
Customizable High-Contrast Optical Responses: Dual Photosensitive Colors
Smart textiles demonstrating optical responses to external light stimuli hold great promise as functional materials with a wide range of applications in personalized decoration and information visualization. The incorporation of high-contrast, vivid, and real-time optical signals, such as color change or fluorescence emission, to indicate light
Membranes | Free Full-Text | Properties and Applications of Intelligent
Photosensitive TTIs were primarily designed based on the principle that the color will change after a special photosensitive dye has been sensitized to light []. Saenjaiban changed the concentration ratio of silver nanoparticles (AgNPs) and glycerol to carboxymethyl cellulose (CMC), and found that the prepared TTI (AgNPs (30 mg/L) and
Preview Controllable thermal energy storage by electricity for both
Thermal energy storage includes sensible, latent, and thermochemical storage, the underlying principle of which is to reversibly change the states of materials
The value of thermal management control strategies for battery energy storage in grid decarbonization: Issues and recommendations
Temperature control systems must be able to monitor the battery storage system and ensure that the battery is always operated within a safe temperature range. If the battery operating temperature is not within the safe range, the temperature control scheme must be able to provide immediate response and feedback to the
Photosensitive ion channels in layered MXene membranes
Second, 50 μL of 0.1 M ascorbic acid and 100 μL of 10 mM AgNO 3 were added quickly at the same time to observe the change in the color of the solution to dark bluish-gray. Finally, after
Dynamic reconfigurable battery energy storage technology： Principle
Therefore, we propose the dynamic reconfigurable-battery (DRB) energy storage technology based on energy digitalization. In comparison to the conventional norm of fixed series-parallel connections, the DRB networks use new program-controlled connections between battery cells/modules. By controlling the charging/discharging time of each
Selection principles and thermophysical properties of high temperature
The selection of phase change materials for TES systems depends on many factors: material properties, storage capacity of the system, operating temperature, the performance of the HTFs and the design considerations of the heat exchangers [7].The performance of the selected materials in various aspects will directly affect the heat
Application and research progress of cold storage technology
Among the three types of phase change energy storage materials, there are phase change energy storage materials with phase transition temperature of 2–8 °C. The latent heat of some materials can reach more than 200 J g −1, and the phase change material in this temperature zone is the cold storage agent currently in the market.
Preparation and characterization of intelligent photochromic and
A microcapsule with intelligent photochromic and energy storage temperature adjustment function has been prepared with melamine-formaldehyde as
An intelligent lighting control system for individual visual
Office buildings especially workplaces are not tailor-made to meet personal indoor requirements of comfort. Therefore, it is a challenge to meet individual-level comfort in these buildings without compromising energy efficiency. This paper presents and analyzes an intelligent lighting system for the visual comfort of individuals and the
Study on the preparation and color-changing properties of smart
The smart fabric based on temperature-sensitive/light-sensitive dual-response is a functional fabric that can change color with temperature and emit green
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2. Smart fiber. 2.1. Smart fiber function Smart fiber refers to the fiber that has the ability to perceive, respond, and discover functions to the external environment and internal state through the processing of smart materials [2]. The intelligent fiber system has the vital characteristics and intelligent functions such as sensing function
Solvothermal synthesis and applications of micro/nano
2. Brief history and the process of solvothermal synthesis. Through solvothermal synthesis, crystalline materials are produced by raising the temperature higher than the boiling point of the reactants in a closed reaction system, thereby forming a high-pressure environment [44].According to this definition, reactions occurring in water,
Intelligent control and energy saving evaluation of highway tunnel lighting: Based on three-dimensional simulation
1. Introduction Chinese tunnel engineering tends to scale up (Ministry of Communications of the People''s Republic of China., 2019, Ministry of Communications of the People''s Republic of China., 2018, Ministry of Communications of the People''s Republic of China., 2017), tunnel lighting has become a vital issue in terms of safety, economy,
Performance optimization of phase change energy storage
The optimization indexes of the phase change energy storage systems in each climate zone under the full-load operation strategy are shown in Fig. 9. As can be seen from the figure, the energy savings of the phase change energy storage CCHP systems in all five cities are obtained under the full-load operation strategy.
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