Relevant bibliographies by topics / Freeze-melting process

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Academic literature on the topic 'Freeze-melting process'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Freeze-melting process"

1

Huang, Man, Bin Tang, Jianliang Jiang, Renqiu Guan, and Huajun Wang. "Experimental Study on Freeze-Thaw Cycle Duration of Saturated Tuff." Advances in Civil Engineering 2020 (July 24, 2020): 1–10. http://dx.doi.org/10.1155/2020/8813610.

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The freeze-thaw duration is one of the important factors affecting the change of rock properties. However, this factor has not formed a unified standard in the freeze-thaw cycle test. This study uses saturated tuff samples taken from eastern Zhejiang, China, as research objects to explore the change law of the time required for the rock to reach a full freeze-thaw cycle. Measured results show that the total duration of the freeze-thaw cycle presents an increasing power function with the increase in the number of freeze-thaw cycles. The freezing process is divided into three phases: initial fre
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Nabiilah, Banafsaj Fatiya, Asril Pramutadi Andi Mustarib, and Yacobus Yulianto. "Simulasi Pelelehan Freeze Plug Termodifikasi pada Molten Salt Reactor Menggunakan Metode Moving Particle Semi-implicit." POSITRON 12, no. 2 (2022): 112. http://dx.doi.org/10.26418/positron.v12i2.57434.

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In the Molten Salt Reactor, the freeze plug is one of the components that plays an important role when a reactor accident occurs. In designing the freeze plug, the selection of the constituent material is based on the ability of the material to spread the heat. Therefore, studies on material selection are needed to provide information regarding freeze plug design. The modified freeze plug melting process has been simulated using the Moving Particle Semi-Implicit method. This study aims to observe the behavior of the modified freeze plug melting phenomena and to see the effect of the conductivi
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Yanti, Nita Juli, Asril Pramutadi Andi Mustari, Anni Nuril Hidayati, and Nur Asiah Aprianti. "The effect of Copper utilization on MSFR’s safety plug performance simulation by using MPS." Journal of Physics: Conference Series 2243, no. 1 (2022): 012059. http://dx.doi.org/10.1088/1742-6596/2243/1/012059.

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Abstract Generation IV reactors are developed and expected to have a higher safety level than the previous reactors. One of the generation IV reactors is Molten Salt Fast Reactor (MSFR) with the freeze plug and drainage pipe as the integrated safety system. When an accident occurs, the fuel flows down, directly interacts and melts the freeze plug. Moreover, the fuel will be cooled at the safety tank. This research aims to simulate the freeze plug melting process by using Moving Particle Semi Implicit (MPS) method. MPS is a particle method based on Lagrangian mechanism developed by Koshizuka an
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Ma, Yan, Shuai Wu, Xian Jun Meng, and Wei Wei Liu. "Manufacturing Research with Key Applied Technology in Vacuum Freeze-Drying Leisure Meat Processing." Advanced Materials Research 1056 (October 2014): 88–91. http://dx.doi.org/10.4028/www.scientific.net/amr.1056.88.

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This paper studies thefreeze-drying process of Chinese style ham and western Germany fruit tree tenderloin , get their eutectic point, melting point and collapse temperature, freeze-drying curve and its heat and mass transfer characteristics, and determine the precool temperature and highest limited temperature of sublimation interface . The effects of system pressure on freeze-dried rate in freeze-drying process is discussed, determining the methods of regulating pressure circularly.
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Wang, Jin Liang, Yan Xin Wu, and Li Wei Liang. "Evaluation of Melting Temperature of the Freeze Slag in Reaction Shaft of Flash Smelting Furnace." Advanced Materials Research 402 (November 2011): 277–82. http://dx.doi.org/10.4028/www.scientific.net/amr.402.277.

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According to the reaction shaft operation characteristics during the flash smelting process, 15 groups of slag samples containing high Fe3O4were prepared by some chemical reagents, and the slag melting temperatures were measured using a ZDHR-200 type intelligent test instrument for ash melting point by means of hemisphere point. Then, the mathematical formula between the melting temperature and the chemical composition of freeze slag were acquired by means of nonlinear regression analysis. The effects of the Fe/SiO2ratio (mFe/mSiO2), CaO/SiO2ratio (mCaO/mSiO2), Fe3O4content (ωFe3O4), Cu2O cont
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Payandeh, Mostafa, Anders E. W. Jarfors, and Magnus Wessen. "Effect of Superheat on Melting Rate of EEM of Al Alloys during Stirring Using the RheoMetal Process." Solid State Phenomena 192-193 (October 2012): 392–97. http://dx.doi.org/10.4028/www.scientific.net/ssp.192-193.392.

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The RheoMetal process (previously called the Rapid S- and RSF- process) is a novel method to produce cost effective, high quality, semisolid slurries for component casting. The RheoMetal process uses an Enthalpy Exchange Material (EEM) as cooling agent to absorb heat and produce a slurry. Critical process parameters to create a slurry by robust melting of the EEM are alloy content, stirring speed, EEM to melt ratio, EEM temperature, EEM microstructural characteristics and melt superheat. In this paper, the melting sequence and melting rate of the EEM was studied experimentally. The effect of E
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Wang, Qianfeng, Mo Chen, Xiaoyang Yuan, and Yuanyuan Liu. "Effects of Freeze−Thaw Cycles on Available Nitrogen Content in Soils of Different Crops." Water 16, no. 16 (2024): 2348. http://dx.doi.org/10.3390/w16162348.

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In order to study the effect of freeze−thaw cycles on the content of available nitrogen in soils of different crops and obtain an in-depth understanding of changes in soil fertility and soil environment in cold regions, a laboratory simulation experiment was conducted with different freeze−thaw times, temperature differences, and periods. The changes in available nitrogen concentrations in the 0–15 cm and 15–30 cm layers of corn, vegetable, and paddy soils were measured by the alkaline-hydrolysis diffusion method. The results were as follows. (1) The freeze−thaw process had significant effects
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Kuncoro Aji, Indarta, Tatsuya Tokushima, Koji Enoki, Motoyasu Kinoshita, and Tomio Okawa. "CONVECTION EFFECT OF THE FREEZE VALVE MELTING PROCESS ON MOLTEN SALT REACTOR." Proceedings of the International Conference on Nuclear Engineering (ICONE) 2019.27 (2019): 1346. http://dx.doi.org/10.1299/jsmeicone.2019.27.1346.

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Yuan, Ye. "Simulation of Temperature Field in Railway Embankment Filling in Seasonal Frozen Areas." International Journal of Mechanical and Electrical Engineering 2, no. 1 (2024): 84–92. http://dx.doi.org/10.62051/ijmee.v2n1.11.

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In order to examine the temperature field changes of railway roadbed in seasonal frozen areas under different filling heights, a typical cross-sectional model of Chagan Lake Station railway was established using the finite element numerical simulation software ANSYS. The temperature parameters of the roadbed were calculated based on the atmospheric temperature of local meteorological data, and the temperature fitting curve was used as the temperature boundary condition. Under different filling quantities, the temperature field of the roadbed was simulated for a freeze-thaw cycle, and the tempe
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Zhu, Ziyang, Wei Li, Yilin Yin, Ruilin Cao, and Zenghe Li. "Differential Scanning Calorimetry Material Studies: Benzil Melting Point Method for Eliminating the Thermal History of DSC." Journal of Chemistry 2022 (September 19, 2022): 1–9. http://dx.doi.org/10.1155/2022/3423429.

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How to eliminate the thermal history present in differential scanning calorimetry, this question has been widely concerned. Benzil has a serious thermal history that is not well eliminated by conventional thermal history methods. Herein, using benzil as a target, we developed a freeze-gradient temperature rate heating up method to eliminate the thermal history of DSC. Compared with the conventional method, this method avoids the introduction of new thermal histories by new crystalline forms that may appear during the cooling crystallization process. The results show that the peak shape of the
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Conference papers on the topic "Freeze-melting process"

1

Aji, Indarta Kuncoro, Tokushima Tatsuya, Motoyasu Kinoshita, and Tomio Okawa. "An Experimental Study on Freeze Valve Performance in a Molten Salt Reactor." In 2018 26th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/icone26-81679.

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Freeze valve technology is the main feature of safety system in the molten salt reactor. Freeze valve made from frozen salt located between reactor core and drain tank. The freeze valve will automatically melt and open on the accident condition, and respectively molten salt fuel will drain out from reactor core to the drain tanks. Melting time of frozen salt is important issues on this study, where draining process of the liquid fuel must be carried out immediately after the accident. Many factors affect to the opening time of freeze valve. On this experiment, describe a melting process of fro
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Supowit, Jacob, Sean Reilly, Ladan Amouzegar, and Ivan Catton. "A Novel Inorganic Aqueous Solution and its Effect on Liquid Spreading and Freeze/Thaw Processes." In ASME 2013 Heat Transfer Summer Conference collocated with the ASME 2013 7th International Conference on Energy Sustainability and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/ht2013-17773.

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Frozen startup of phase change heat transfer devices is a complex problem that can have a large impact on heat transfer systems. A patented novel working fluid developed at UCLA comprised of an inorganic aqueous solution (IAS) was investigated for potential effects on the freeze/thaw capabilities in phase change heat transfer devices by examining the melting process of droplets. Preliminary visual tests were conducted to gain insight into any physical processes that surface augmentation created by this fluid may have on the freezing and melting process. These tests demonstrated significant dif
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Ilham, Muhammad, Indarta Kuncoro Aji, and Tomio Okawa. "Numerical Investigation of Safety System Parameters in Molten Salt Reactor: Wall Effect on Freeze Valve Opening Time." In 2021 28th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/icone28-64134.

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Abstract Molten Salt Reactor (MSRs) is one of the fourth generation Nuclear Power Plants with better capabilities and potentialities compared to previous generation, the enthusiasm for molten fuel reactor has been increasing around the world. MSRs has passive safety where if the core is overheating cause by accident event, the liquid salt fuel was required to be moved to the safety drain tank underneath the core vessel by gravity force. During this occasion, the freeze valve (FV) that formed in the pipe located between the core and drain tank must be melt out promptly to prevent the vessel to
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Ilham, Muhammad, and Tomio Okawa. "Numerical Analysis of Simple Heat Equation to Predict the Opening Time of the Freeze Plug in Molten Salt Reactors." In 2022 29th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/icone29-92284.

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Abstract Freeze plug is an important safety system that can be used in Molten Salt Reactors (MSRs). Capable of removing the decay heat of the fuel in the core by draining the liquid fuel in the core to the safety tank located underneath the core by gravity, with no use of a mechanical valve or operator and electrical supply. The better understanding of designing the freeze plug system, the more efficient the MSRs safety system will be. The opening time of the freeze plug is one of the major importance in ensuring the passive safety of the MSRs. In this study, systematic numerical simulations a
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Koz, Mustafa, Hamza S. Erden, and H. Ezzat Khalifa. "Numerical Investigation of the Melting of a Phase Change Material in a Thermal Storage Device With Embedded Air Flow Channels." In ASME 2016 Heat Transfer Summer Conference collocated with the ASME 2016 Fluids Engineering Division Summer Meeting and the ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/ht2016-7412.

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Two time-dependent mathematical and numerical models with different levels of complexity and fidelity were developed to investigate the melting of a phase change material (PCM) configured as a number of aluminum-encased, PCM-filled slabs with embedded micro-channel aluminum tubes, and with parallel air-flow passages interposed between the slabs. Melting was first analyzed with the COMSOL Multiphysics® finite-element model (FEM) in a 2-D domain representing a full-size slab. The melting process is simulated via the apparent heat capacity method. The model captures the effect of natural convecti
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Liu, B., Y. Q. He, Y. H. Han, W. H. Li, and J. Y. Zeng. "Effect of Cyclic Freezing and Thawing on Permeability and Mechanical Properties of Red Sandstone Under Triaxial Compression Condition." In 58th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2024. http://dx.doi.org/10.56952/arma-2024-0684.

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ABSTRACT: During the construction of coal mines in western China, many boreholes are drilled through artificially frozen Cretaceous and Jurassic formations. After experiencing one freeze-thaw cycle, these water-rich and weakly cemented rocks generally demonstrate significant changes in permeability and mechanical properties, leading to frequent occurrences of water intrusion and flooding accidents. In this study, triaxial compression test and permeability test were conducted on red sandstone under conditions of both no freeze-thaw cycle and one freeze-thaw cycle. The variation of permeability
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Xu, Minghan, Saad Akhtar, Ahmad F. Zueter, Mohammaderfan Mohit, and Agus P. Sasmito. "Analytical Modeling of Metal Foam Composite Phase Change Materials (PCM) in Thermal Energy Storage Using Asymptotic Analysis." In ASME 2023 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/imece2023-114094.

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Abstract The use of phase change materials (PCMs) for thermal energy storage can release or absorb a significant amount of latent heat during the freezing or melting process, offering a higher energy storage density. One of the main drawbacks of PCMs is their low thermal conductivity, resulting in poor thermal performance. Recent research has attempted to enhance heat transfer and increase the thermal conductivity of PCMs, including the use of metal foams. However, modeling the metal foam composite PCM using conventional methods is computationally expensive. This paper proposes an asymptotic s
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Thyagarajan, Ashok, Nandan Shettigar, and Debjyoti Banerjee. "Comparison of Thermal Performance of 3D Printed Shell and Tube Heat Exchanger With Commercial Plate Heat Exchanger for Thermal Energy Storage (TES) by Incorporating Phase Change Materials (PCM)." In ASME 2020 Heat Transfer Summer Conference collocated with the ASME 2020 Fluids Engineering Division Summer Meeting and the ASME 2020 18th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/ht2020-8931.

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Abstract Wet cooling is predominantly used in thermoelectric power plants for condensing steam from the turbine owing to their low system cost and for their ability to render lower turbine back pressure (in comparison to dry cooling). However, the implementation of wet cooling in arid regions is costly while implementation of dry cooling in arid regions can degrade operational reliability (while also increasing both capital costs and operational costs). As a result, alternate technologies are needed to wean power plants from using fresh water resources while also enhancing the operational reli
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