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Relevant bibliographies by topics / Heat Solidification Drops

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Academic literature on the topic 'Heat Solidification Drops'

Author: Grafiati

Published: 4 June 2021

Last updated: 12 February 2022

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Journal articles on the topic "Heat Solidification Drops"

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Lipin, Andrey A., Vladimir O. Nebukin, and Aleksandr G. Lipin. "SIMULATION OF HEAT AND MASS TRANSFER PROCESSES UNDER GRANULES CAPSULATION IN FLUIDIZED BED." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 61, no. 4-5 (2018): 98. http://dx.doi.org/10.6060/tcct.20186104-05.5624.

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The paper studies capsulation of solid particles in a spout fluidized bed. A capsulation is used to protect the particles surface from the negative impact of environmental factors as well as to regulate of active component release rate. In this work, the capsulation is carried out by spraying of polymers dispersions on fluidized bed particles by means of pneumatic nozzles. Drops of polymer dispersion having faced with the particles are spred on their surface, forming a liquid film. Solvent removing by drying causes solidification of the film. Existing calculation methods of capsulation in the

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Chistov, A. S., O. G. Savikhin, and I. O. Savikhin. "NUMERICAL SIMULATION OF NON-STATIONARY PROCESSES IN THE GAS TURBINE CIRCUIT OF THE SSTAR LEAD-COOLED REACTOR." Problems of strenght and plasticity 82, no. 3 (2020): 339–52. http://dx.doi.org/10.32326/1814-9146-2020-82-3-339-352.

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The problem of mathematical and numerical modeling of non-stationary processes in a closed gas turbine installation as part of an energy conversion unit of a lead-cooled reactor is considered. The problem is solved in a fairly General formulation, in which the gas circuit can include an arbitrary number of turbines with gas preheating, an arbitrary number of compressors with gas pre-cooling, as well as a heat exchanger for regenerative gas heating. Variants of both single-shaft and two-shaft gas turbine installations are considered. Point idealization is used when modeling the flow part of the

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ROISMAN, ILIA V. "Fast forced liquid film spreading on a substrate: flow, heat transfer and phase transition." Journal of Fluid Mechanics 656 (May 21, 2010): 189–204. http://dx.doi.org/10.1017/s0022112010001126.

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This theoretical study is devoted to description of fluid flow and heat transfer in a spreading viscous drop with phase transition. A similarity solution for the combined full Navier–Stokes equations and energy equation for the expanding lamella generated by drop impact is obtained for a general case of oblique drop impact with high Weber and Reynolds numbers. The theory is applicable to the analysis of the phenomena of drop solidification, target melting and film boiling. The theoretical predictions for the contact temperature at the substrate surface agree well with the existing experimental

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Åberg, Lena Magnusson, Bernard Vinet, and Hasse Fredriksson. "Heat of solidification in refractory metals studied by drop-tube experiments." Transactions of the Indian Institute of Metals 62, no. 4-5 (2009): 269–73. http://dx.doi.org/10.1007/s12666-009-0040-y.

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Sui, Li Jun, Zhi Wu Xu, and Li Wang. "Numerical Simulation of GMAW Process Based on Level Set Method." Advanced Materials Research 503-504 (April 2012): 65–68. http://dx.doi.org/10.4028/www.scientific.net/amr.503-504.65.

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A model based on level set function is proposed to predict gas shielded arc welding. The model describes not only the free surface tracking of molten drop and metal transfer in gas metal arc welding, but it simulates the phase change on substrate during heat transfer，which is based on porous media theory. The result of simulation shows that this model can describe the drop diameters, transfer frequency and the shape of solidification precisely.

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Toledo, Rafael C., Jerônimo S. Travelho, Chen Y. An, and Irajá N. Bandeira. "Heat Transfer During the Solidification of Eutectic PbSn Alloy Droplets in Drop Tubes." Microgravity Science and Technology 26, no. 2 (2014): 119–24. http://dx.doi.org/10.1007/s12217-014-9384-y.

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Yang, Hailin, Mingjiao Fu, Bobo Wu, Ying Zhang, Ruhua Ma, and Jueshi Qian. "Effect of Fe2O3 on the Immobilization of High-Level Waste with Magnesium Potassium Phosphate Ceramic." Science and Technology of Nuclear Installations 2019 (February 3, 2019): 1–10. http://dx.doi.org/10.1155/2019/4936379.

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For the proposed novel procedure of immobilizing HLW with magnesium potassium phosphate cement (MKPC), Fe2O3 was added as a modifying agent to verify its effect on the solidification form and the immobilization of the radioactive nuclide. The results show that Fe2O3 is inert during the hydration reaction. It slows down the hydration reaction and lowers the heat release rate of the MKPC system, leading to a 3°C-5°C drop in the mixture temperature during hydration. Early comprehensive strength of Fe2O3 containing samples decreased slightly while the long-term strength remained unchanged. For the

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Wittig, J. E., D. R. Kegley, W. H. Hofmeister, and R. J. Bayuzick. "Observation of cerium-oxides in rapidly solidified Ti-4wt% Ce." Proceedings, annual meeting, Electron Microscopy Society of America 47 (August 6, 1989): 506–7. http://dx.doi.org/10.1017/s0424820100154500.

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Rapid solidification of Ti rare earth alloys can produce a fine rare earth oxide dispersion. A stable distribution of rare earth oxides in a hexagonal Ti matrix has been shown to increase the flow stress at both room and elevated temperatures. Previous studies have investigated the precipitation phenomena in Ti-erbium Ti-Ianthanum, and Ti-Al-gadolinium alloys. The present research addresses oxide precipitation in a Ti-cerium alloy as a result of rapid solidification processing.Samples of Ti-4 wt% Ce were rapidly solidified by splat quenching 300 mg droplets, after free fall in a 100 m drop tub

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Hopmann, C., P. Nikoleizig, and H. Dornebusch. "Turbulators for Temperature Control of Injection Moulding." International Polymer Science and Technology 44, no. 2 (2017): 1–8. http://dx.doi.org/10.1177/0307174x1704400201.

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The design of a cooling channel system in an injection mould is key to successful production. Locally controlled heat removal is targeted by introducing disturbances inside the cooling channel using so called turbulators. Computational fluid dynamic simulations show different levels of heat removal depending on the shape and configuration of the turbulators, but also an increased pressure drop. Suitable turbulators are then introduced into the cooling channel of an injection mould insert. Within the scope of a design of experiments, no significant influence of the turbulators can be identified

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Kalaiselvam, Sivakumar, Kanchipuram Sureshkumar, and Vijeykishoor Sriram. "Study of heat transfer and pressure drop characteristics of air heat exchanger using PCM for free cooling applications." Thermal Science 20, no. 5 (2016): 1543–54. http://dx.doi.org/10.2298/tsci130531096k.

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Free cooling is the process of storing the cool energy available in the night ambient air and using it during the day. The heat exchanger used in this work is a modular type which is similar to the shell and tube heat exchanger. The shell side is filled with Phase Change Materials (PCM) and air flow is through the tubes in the module. The modules of the heat exchanger are arranged one over other with air spacers in between each module. The air space provided in between the module in-creases the retention time of the air for better heat transfer. Transient Computational Fluid Dynamics modeling

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Dissertations / Theses on the topic "Heat Solidification Drops"

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Hong, Fangjun. "Droplet spreading, substrate remelting and variable thermal contact resistance in microcasting /." View abstract or full-text, 2005. http://library.ust.hk/cgi/db/thesis.pl?MECH%202005%20HONG.

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Book chapters on the topic "Heat Solidification Drops"

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Poulikakos, D., D. Attinger, S. Haferl, and Z. Zhao. "Heat Transfer and Solidification During the Impact of a Droplet on a Surface." In Drop-Surface Interactions. Springer Vienna, 2002. http://dx.doi.org/10.1007/978-3-7091-2594-6_5.

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Krivilyov, M., and Jan Fransaer. "Effects of Transient Heat and Mass Transfer on Competitive Nucleation and Phase Selection in Drop Tube Processing of Multicomponent Alloys." In Solidification of Containerless Undercooled Melts. Wiley-VCH Verlag GmbH & Co. KGaA, 2012. http://dx.doi.org/10.1002/9783527647903.ch7.

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Conference papers on the topic "Heat Solidification Drops"

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Quon, Andrew, Abdul Ahad Khan, and Navdeep Singh Dhillon. "Theoretical Modeling of Thermal Transients in a PCM Substrate During Drop Impact." In ASME 2019 Heat Transfer Summer Conference collocated with the ASME 2019 13th International Conference on Energy Sustainability. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/ht2019-3648.

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Abstract The physics of transient behavior of liquid drops impacting hot and cold surfaces is of significance in many different applications such as spray cooling, condensation and aircraft icing, and analogous to the process of bubble formation and departure in boiling. The resulting local thermal transients in these processes are primarily dictated by passive parameters such as substrate and liquid thermal properties and flow conditions. We are exploring the use of a surface-embedded phase change material (PCM) to actively manipulate these thermal transients as a means to enhance overall hea

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Shabgard, Hamidreza, Amir Faghri, Theodore L. Bergman, and Charles E. Andraka. "Numerical Simulation of Heat Pipe-Assisted Latent Heat Thermal Energy Storage Unit for Dish-Stirling Systems." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-65487.

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A two-dimensional model is developed to simulate the transient response of a heat pipe-assisted latent heat thermal energy storage (LHTES) unit that is combined with dish-Stirling solar power generation systems. The unit consists of a container which houses a phase change material (PCM) and two sets of interlaced input and output heat pipes (HPs) embedded in the PCM. The LHTES unit is exposed to time-varying concentrated solar irradiance. A three-stage operating scenario is investigated that includes: (i) charging only, (ii) simultaneous charging and discharging, and (iii) discharging only. In

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Dhami, Harish Singh, and Koushik Viswanathan. "On the Formation of Spherical Particles in Surface Grinding." In ASME 2020 15th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/msec2020-8278.

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Abstract Grinding swarf is conventionally of secondary interest to the process engineer. However, it has long been recognized that it is a useful indicator of process performance — the exact particle morphologies occurring in the swarf contain a wealth of information about the abrasive-workpiece interaction mechanics. In this work, we study the generation of perfectly spherical particles when grinding two plain carbon steels and a grade of stainless steel with an alumina wheel. Similar particles have also been reported in the wear community and several possible formation mechanisms have been d

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Su, Yeong-Jen, and Wen-Jei Yang. "THERMOCAPILLARY CONVECTION IN EVAPORATING SESSILE DROPS WITH INTERNAL SOLIDIFICATIONS." In International Heat Transfer Conference 9. Begellhouse, 1990. http://dx.doi.org/10.1615/ihtc9.3810.

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Loulou, T., E. A. Artyukhin, and Jean Pierre Bardon. "SOLIDIFICATION OF MOLTEN TIN DROP ON A NICKEL SUBSTRATE." In International Heat Transfer Conference 10. Begellhouse, 1994. http://dx.doi.org/10.1615/ihtc10.1630.

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Vu, Truong V., Gretar Tryggvason, Shunji Homma, John C. Wells, and Hideyuki Takakura. "Numerical Investigations of Drop Solidification by a Front-Tracking Method." In ASME 2014 4th Joint US-European Fluids Engineering Division Summer Meeting collocated with the ASME 2014 12th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/fedsm2014-21899.

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We present a front-tracking/finite difference method for simulation of drop solidification, where the melt is confined by its own surface tension. The problem includes temporal evolution of three interfaces, i.e. solid–liquid, solid–air, and liquid–air, that are explicitly tracked under the assumption of axisymmetry. The solid–liquid interface is propagated with a normal velocity that is calculated from the normal temperature gradient across the front and the latent heat. The liquid–air front is advected by the velocity interpolated from nearest bulk fluid flow velocities. Method validation is

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Dhiman, Rajeev, and Sanjeev Chandra. "Effect of Substrate Temperature on Splashing of Molten Metal Droplets." In ASME 2004 Heat Transfer/Fluids Engineering Summer Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/ht-fed2004-56096.

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The effect of substrate temperature on the splashing of molten metal droplets was studied experimentally. Uniform-size molten tin droplets (550 μm diameter) were produced using a drop-on-demand generator. To achieve high impact velocities substrates were mounted on the rim of a rotating flywheel and heated using cartridge heaters to vary substrate temperature. Droplets hitting a smooth cold substrate splashed extensively producing many small satellite droplets and leaving on the surface a small, irregular splat with many fingers projecting from its periphery. Droplets hitting a hot substrate d

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Chao, Long-Sun, Yu-Ru Chen, and Hsiun-Chang Peng. "Numerical Simulation and Experimental Analysis on the Crystal Growth of Excimer-Laser Crystallization of a-Si Film." In ASME 2008 First International Conference on Micro/Nanoscale Heat Transfer. ASMEDC, 2008. http://dx.doi.org/10.1115/mnht2008-52346.

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In this work, the excimer-laser-induced crystallization of amorphous silicon (a-Si) films was investigated numerically and experimentally. The basic structure is an a-Si film on a glass substrate. This study had investigated the effects of irradiating energy density on the grain size and structure by scanning electron microscopy (SEM). In the surface microstructure analysis of the laser-irradiated area, the critical fluences (full-melt threshold, FMT) between the partial melting and complete melting regimes can be found by applying scanning electron microscopy. An efficient two-dimensional num

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Tioual-Demange, Sarah, Gaëtan Bergin, Thierry Mazet, and Luc de Camas. "Industrial Technical Development and Qualification of Highly Efficient Stainless Steel Plates and Fins Heat Exchanger for Heat Removal Supercritical CO2 Brayton Cycle Applied to Nuclear Power Plants." In ASME 2020 Fluids Engineering Division Summer Meeting collocated with the ASME 2020 Heat Transfer Summer Conference and the ASME 2020 18th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/fedsm2020-20205.

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Abstract The sCO2-4-NPP european project aims to develop an innovative technology based on supercritical CO2 (sCO2) for heat removal to improve the safety of current and future nuclear power plants. The heat removal from the reactor core will be achieved with multiple highly compact self-propellant, self-launching, and self-sustaining cooling system modules, powered by a sCO2 Brayton cycle. Heat exchangers are one of the key components required for advanced Brayton cycles using supercritical CO2. Fives Cryo company, a brazed plates and fins heat exchangers manufacturer, with its expertise in t

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Ghosh, Koushik, Achintya Mukhopadhyay, Swarnendu Sen, and Dipankar Sanyal. "An Integral Approach for Predicting Vapour Film Collapse and Growth Around a Hot Sphere in Subcooled Water." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-16261.

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The phase-change heat transfer has attracted researchers for its wide range of industrial applications like solidification in liquid containers, cooling of phase change material storage, combustion of spherical droplets and vapour explosion with associated film boiling and film collapse around molten drop in a coolant liquid. Major features of phase-change processes are heat transfer among multiple phases, mass transfer caused by latent heat of phase change and movement of phase interface. In present work a sphericosymmetric numerical model is developed to predict very rapid collapse of a vapo

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