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Herein, a photothermal energy-storage capsule (PESC) by leveraging both the solar-to-thermal conversion and energy-storage capability is proposed for efficient anti-/deicing. Under illumination, the surface temperature can rise to 55 °C, which endows fast droplet evaporation to prevent the subsequent bulk freezing, and the accumulated ice and frost
DOI: 10.2139/ssrn.4176001 Corpus ID: 251206493; Experimental Investigation of Producing Ice Slurry with Water Using Opposed-Nozzle Impinging Jet Method @article{Gao2022ExperimentalIO, title={Experimental Investigation of Producing Ice Slurry with Water Using Opposed-Nozzle Impinging Jet Method}, author={Yuguo Gao
This paper is based on the model of cascaded PBTES with capsules of varying diameters for low-temperature operation proposed in our team''s previous study [33], and combined with Li et al.''s [30] and Liu et al.''s [34] studies on the model dimensions of the storage tanks, we obtain a three-dimensional physical model of the cascaded two
Physical model of packed-bed cold storage tank. Three typical dense packing configurations of the cold storage tank, i.e. the ADL, HCP, and FCC layouts, were developed as schematically depicted in Fig. 2. The spherical PCM capsules with an identical inner radius of 20 mm and a shell thickness of 1 mm, are stacked sequentially in
Saitoh TS, HH KY (1997) Theoretical analysis and experiment on combined close-contact and natural convection melting in thermal energy storage spherical capsule. Proc Energy Conv Eng Conf 3 IEEE:1656–1661. Assis E, GZ RL (2009) Numerical and experimental study of solidification in a spherical shell. J Heat Transf
The packed bed latent heat thermal energy storage systems have been used for applications such as, solar thermal energy storage, low temperature storage systems
Latent heat thermal energy storage (LHTES) captures the thermal energy via a solid–liquid phase transition that occurs in phase-change materials (PCM). The PCM is usually encapsulated in some way. In this study, we consider PCM melting in a vertical cylindrical enclosure, that is a prototype of a capsule used in a future storage system.
The air storage pressure of the compressed air energy storage system gradually decreases during the energy release process. In order to make the turbine work efficiently in non-design conditions, it is necessary to adopt a reasonable air distribution method for the turbine.
An analytical and experimental investigation was performed on a heat removal process of the thermal energy storage (TES) capsule, using gelled Glauber''s salt. Transient heat flux at the capsule wall was measured for various cooling conditions. In cases where the initial temperature was lower than the saturation temperature of the
This result indicates that HD encapsulated in microcapsules serves as an energy storage material that absorbs and releases energy through the solid–liquid phase change and
Figure 6a, b show the total energy storage rate of all the LHS/ SHS capsules. For making a comparison between the LHS and SHS capsules of different configurations, the time taken for 95% of total energy stored, i.e., 304 kJ can be taken as the charging time of the capsules.
Droplet-based microfluidics for microencapsulation has also reached the thermal energy storage sector, especially in the latent heat storage field using phase
The fabrication of novel phase change energy storage (PES) functional composite material by combining PUFs with PCMs will improve thermal insulation efficiency and open up new energy storage applications of PUFs [[13], [14], [15]]. Millimeter-sized phase change capsules (macroPCMs) containing microPCMs was prepared using CA
Herein, a photothermal energy-storage capsule (PESC) by leveraging both the solar-to-thermal conversion and energy-storage capability is proposed for efficient anti-/deicing. Under illumination, the surface temperature can rise to 55 °C, which endows fast droplet evaporation to prevent the subsequent bulk freezing, and the accumulated ice and
An experimental and numerical investigation of constrained melting heat transfer of a phase change material in a circumferentially finned spherical capsule for thermal energy storage Author links open overlay panel Li-Wu Fan a b, Zi-Qin Zhu a b, Sheng-Lan Xiao c, Min-Jie Liu a, Hai Lu d, Yi Zeng a e, Zi-Tao Yu a f, Ke-Fa Cen b
Compressed air energy storage technology (CAES) has an enormous possibilities in terms of energy conversation, environmental protection, and economic benefits. Air compressor, as a core component, is of great significance for the CAES system efficiency. The impact of the non-equilibrium condensation of steam contained in the air
Changing the tank height-to-diameter ratio has little effect on the temperature evolution of air along the tank axis but results in a slight decrease in energy
The optimized values of the turbulent kinetic energy F1 and the vapor volume fraction F2 increased by 28.26% and 5.56%, respectively, and the corresponding nozzle parameters of the chamber
The pollen-type capsules are superior to other types of capsules in terms of melting time, exergy efficiency and energy storage economic index. Nevertheless, the pollen-type capsule takes a long time during the end period of melting, so the ratio of fin length to radius is extended from 2/3 to 5/6 to obtain the optimized pollen-type capsule.
In the three cases studied, the pumped storage has the best thermo-economy; the compressed air energy storage is the second, and the flywheel energy storage is the third.
In a RIT, low-speed compressed air firstly expands in the nozzle passages and accelerates rapidly and then enters the rotary rotor to do work by further expansion. The velocity triangles of compressed air in the inlet and
N2 - A numerical analysis of melting of an organic phase change material (PCM) in a square thermal energy storage (TES) capsule with an array of high voltage wire electrodes has
Energy storage, in particular, is vital to combat the intermittency of many renewable energy sources. A somewhat overlooked topic is the storage of thermal
Droplet-based microfluidics for microencapsulation has also reached the thermal energy storage sector, especially in the latent heat storage field using phase change materials (PCMs). Among these materials, solid–liquid PCMs are the most appealing, due to their high energy density compared to other PCMs, but present the
The phenomenon of the phase change that takes place inside the PCM capsules of the latent heat thermal energy storage system in solar thermal applications is the interest of this research work. The paraffins are mostly used as PCMs, due to their easy availability and due to their suitable thermal characteristics, in low temperature
In the event of a fire, once the nozzle senses the fire signal, the energy storage device will quickly release the stored energy to drive the nozzle for high-speed rotation and water spray. This high-speed rotation makes the water flow to form fine water mist particles, increasing the fire extinguishing area and fire extinguishing effect.
Nomenclature C p specific heat/(J·kg −1 ·K −1) d capsule diameter/mm D diameter/mm E energy stored in capsule/kJ H height/mm h p heat transfer coefficient/(W·m −2 ·K −1) ṁ mass flow rate/(kg·h −1) P heat storage rate/W P r
23. A Comprehensive review of sensible heat based packed bed solar thermal energy storage system. Reza Zaghari Nasser Baharloo-Houreh. Environmental Science, Engineering. 2022. Packed bed storage system (PBSS) is one of the techniques to store the solar thermal energy which can be used for greenhouses heating, crop drying
The energy storage density is one of the most essential metric for PCM packed beds. As for packed beds, its cost-effectiveness depends on PCM packed density to a great extent. It is calculated that the theoretical PCM packed density of FCC and HCP packing are 0.74. Whereas, the numerical value of ADL is merely 0.52.
Herein, the development of a multinozzle, multimaterial printing device is reported. This device accommodates the various characteristics of printing materials, ensures high
The two phases merged at the exit of the inner nozzle to form O/W emulsion -linked polymer capsule particles on the thermal properties of encapsulated HD was studied from the view point of heat storage application. The capsule particles were prepd. by micro-suspension polymn. of divinylbenzene at 70 °C utilizing the Self-assembling of
In contrast, compared to T 0, the melting time of unsteady state heat sources T B and T b is shortened by 18.20 % and 14.92 %, the PCM energy storage capacity is both reduced by 4.54 %, and the average energy storage rate is increased by 16.71 % and 12.19 %, respectively. The findings have a certain guiding significance for
Abstract. A latent thermal energy storage system, which consists of sodium nitrate filled spherical capsules in a cylindrical tank, is analyzed for concentrating solar power plant applications. The high temperature synthetic oil, Therminol 66, is used as heat transfer fluid. A numerical model is developed to investigate the behavior of the system.
Grid 4 is applied to check the condensation models. The GY, FS, YO, PW, blend models have been calculated, and Fig. 4 shows the difference between numerical results and experiential data [50] om Fig. 4, the results can be concluded that the condensation wave appears in the HK, GY, FS, YO, Blend models, as same to the PW
The phase change microcapsule (mPCM) is one of the primary candidates in the fields of energy storage and thermal regulation. In this study, electro-spraying, as a green, high-efficiency electrohydrodynamic atomization technology, is applied to the microencapsulation of two phase change materials (PCM) (n-hexadecane and n
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