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Relevant bibliographies by topics / Dromus coolant

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Academic literature on the topic 'Dromus coolant'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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Journal articles on the topic "Dromus coolant"

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Zurianti, Sundari Ella, and Aristia Anas Adian. "ANALISA PENGARUH PENDINGINAN MENGGUNAKAN METODE KRIOGENIK DAN DROMUS COOLANT TERHADAP KEKERASAN DAN KEKASARAN PADA BENDA KERJA DI MESIN BUBUT." MACHINERY: JURNAL TEKNOLOGI TERAPAN 6, no. 1 (2025): 48–55. https://doi.org/10.5281/zenodo.15234420.

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<em>This study uses a quantitative methodology to test which is better than the roughness value and hardness value of both cryogenic cooling and dromus coolant methods for the manufacture of chuck locks on lathes with AISI 1045 steel material. As well as using the ANOVA analysis method to process the results. And from the results of the measurement using the Surface Roughness Tester roughness test tool carried out, it can be concluded that the chuck lock made on a lathe using the cryogenic cooling method is less roughness value, namely at the N7 level while the dromus coolant method at the N9

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Arsana, Putu, I. Nyoman Pasek Nugraha, and Kadek Rihendra Dantes. "PENGARUH VARIASI MEDIA PENDINGIN TERHADAP KEKASARAN PERMUKAAN BENDA KERJA HASIL PEMBUBUTAN RATA PADA BAJA ST. 37." Jurnal Pendidikan Teknik Mesin Undiksha 7, no. 1 (2019): 7. http://dx.doi.org/10.23887/jjtm.v7i1.18746.

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Media pendingin merupakan salah satu faktor yang mempengaruhi kekasaran permukaan benda kerja pada proses pemesinan, khususnya pada proses pembubutan. Dalam penelitian ini bertujuan untuk mengetahui pengaruh variasi media pendingin terhadap kekasaran permukaan benda kerja hasil pembubutan rata pada baja ST. 37. Penelitian ini menggunakan metode eksperimen dengan variabel terikat yaitu kekasaran permukaan dan variabel bebas yaitu media pendingin. Media pendingin yang digunakan dalam penelitian ini antara lain: air, dromus oil dan radiator coolant. Subyek penelitian atau sampel penelitian sebany

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Aldio, Rieza Zulrian, Muhd Ridho Ilham Fadila, Dedikarni Dedikarni, Dody Yulianto, and Mochamad Denny Surindra. "Analisis Jenis Coolant terhadap Temperatur dan Keausan Mata Pahat pada Proses Pengeboran Pegas Daun SUP9." Jurnal Rekayasa Mesin 19, no. 1 (2024): 103–10. https://doi.org/10.32497/jrm.v19i1.5362.

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Pegas daun adalah jenis suspensi yang biasa digunakan pada truk pengangkut beban yang berat. Salah satu langkah recycle adalah pengeboran ulang pegas daun yang masih layak digunakan. Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan coolant pada proses pengeboran ulang pegas daun terhadap temperature dan keausan mata pahat. Proses pengeboran menggunakan baja SUP9 dan mata pahat HSS berdiameter 17mm pada putaran spindel 280rpm dengan variasi coolant oli dromus, air bersih, dan minyak kelapa. Oli dromus diemulsikan dengan air pada perbandingan 70 persen air dan 30 persen oli dromus.

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Mudjijanto, Mudjijanto, Hendri Destriyanto, Ali Achmadi, and Sarjono Sarjono. "PENGARUH JENIS MEDIA PENDINGIN TERHADAP GETARAN DAN NILAI KEKASARAN PERMUKAAN PADA PEMBUBUTAN MATERIAL BAJA AISI 1045." JURNAL CRANKSHAFT 7, no. 1 (2024): 12–19. http://dx.doi.org/10.24176/crankshaft.v7i1.11776.

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The coolant in the turning process functions to stabilize the temperature in the cutting process in addition to the temperature on the workpiece as well as the temperature on the tool, where an increase in temperature will certainly cause changes in mechanical properties. This research aims to find a correlation between surface roughness and vibration with variations in cooling in the AISI 1045 steel turning process. The research method for the AISI 1045 steel turning process is with a depth of cut 1 mm and a feed rate of 0.21 mm/rev and a rotation of 1,160 rpm, cooling using with variations,

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Anwar, Ahmad Khoirul, Digdo Listyadi, and Dwi Djumhariyanto. "PENGARUH VARIASI JENIS PENDINGIN DAN KEDALAMAN POTONG PADA PROSES BUBUT BAJA ST60 TERHADAP UMUR PAHAT." ROTOR 12, no. 1 (2020): 23. http://dx.doi.org/10.19184/rotor.v12i1.16328.

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Turning machining process is a warkpiece diameter reduction by using chisel cut to produce the shape of the workpiece on a turning, there are various types of machining turning chisel pieces on the turning chisel types include carbide, CBN, and insert. There are also other types on conventional chisel on a turning process, one of which is a turning type of high speed steel (HSS), the turning is widely used in coventional production processes for other than low cost is also easy to grinding. Parameter in this research is coolant and depth of cut. The coolant used is dromus, ex-oil, ex cooking o

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Ilyas, Bramantyo S. K. B. W., Sigit Joko Purnomo, and R. Faiz Listyanda. "Pemanfaatan Minyak Biji Nyamplung (Calophyllum Inophyllum Linn) Sebagai Alternatif Coolant Pada Proses Pembubutan." Majamecha 6, no. 2 (2024): 262–69. https://doi.org/10.36815/majamecha.v6i2.3500.

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Penelitian ini bertujuan untuk menganalisis pengaruh alternatif minyak biji nyamplung sebagai alternatif coolant selama proses pembubutan terhadap kekasaran dan kekerasan baja ST 37. Metode penelitian yang digunakan adalah studi eksperimen dengan melakukan studi literatur, eksperimental, pengambilan data, dan analisis data. Variasi proses pembubutan terdiri dari variasi persentase coolant dan putaran spindle. Pada penelitian ini, variasi minyak dromus digunakan sebagai pembanding. Hasil penelitian menunjukkan kekasaran terendah berada di variasi 1 putaran 450 rpm (40% minyak dromus + 55% air +

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Wibowo, Moch Arif, Nely Ana Mufarida, and Kosjoko Kosjoko. "Pengaruh Cairan Pendingin Terhadap Kekuatan Tarik dan Bending Pengelasan SMAW Baja SS400." Jurnal Teknik Mesin 17, no. 1 (2024): 32–37. http://dx.doi.org/10.30630/jtm.17.1.1321.

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The welding process is widely used for joining in machine construction and steel construction. One popular welding method today is SMAW. SMAW welding is effective and practical because it only requires simple tools and electrodes in its use. According to research before, the higher the viscosity value of the coolant used, the higher the tensile strength produced by using various coolants such as aloe vera gel, banana stem extract, and water. Therefore, this research aims to use readily available coolants, especially in the production workshop environment. The purpose of this study is to determ

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Sigit Kristiadi, Unung Lesmanah, and Artono Raharjo. "Pengaruh Variasi Media Pendingin Terhadap Kekerasan dan Mikrostruktur Pada Pengecoran Aluminium 6061." Ring Mechanical Engineering 2, no. 2 (2023): 101–12. http://dx.doi.org/10.33474/rm.v2i2.19906.

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Proses pengecoran dan proses pendinginan pada logam dapat mempengaruhi sifat mekanis dan sifat fisik yang terbentuk. Perubahan pada sifat logam dipengaruhi oleh jenis dan media pendingin pada proses pendinginan logam. Penelitian ini bertujuan untuk mengetahui pengaruh dari perbedaan media pendingin (Air, Dromus, dan Coolant radiator) pada proses quenching terhadap kekerasan dan mikrostruktur pada Aluminium 6061 yang telah melewati tahap pengecoran. Didapatkan kesimpulan variasi media pendingin yang digunakan mempengaruhi tingkat kekerasan dan mikrostruktur benda uji yang berbeda-beda. Dari has

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Warso, Warso, Trio Nur Wibowo, and Yuliyanti Dian Pratiwi. "Pengaruh Variasi Colling pada Pengelasan GMAW Terhadap Uji Tarik dan Uji Kekerasan pada Baja ST 60." Accurate: Journal of Mechanical Engineering and Science 2, no. 1 (2021): 22–26. http://dx.doi.org/10.35970/accurate.v2i1.578.

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The technology of the manufacturing industry is developing rapidly, where the rapid development of this technology cannot be separated from the welding field. In the welding process, thermal heat is used until the material melts, the heat change will also cause changes in the structure, stress and also deformation of the material. This is because the more carbon elements are captured, the more martyred structures are formed. This causes an increase in the value of hardness and tensile strength values in the material. The purpose of this study was to determine the effect of the temperature of t

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Karmin, Yunus Moch, and Ginting Muchtar. "PENGARUH DRUMUS OIL SEBAGAI MEDIA PENDINGIN TERHADAP PENINGKATAN KEKERASAN DAN TRANFORMASI FASA PADA PROSES PENGERASAN BAJA AMUTIT." AUSTENIT 6, no. 2 (2014): 1–6. https://doi.org/10.5281/zenodo.4546646.

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Engineering process technology is basically an effort to optimize the use of natural resources effectively and efficiently in order to provide maximum benefit for the benefit of human life. Amutit steel is one of the low alloy steel which is identical to AISI O1 standard. This steel hardness can be increased through a heat treatment process that allows used for industrial purposes as cold work tool steels as well as other purposes. In this research the process of hardening, the steel is heated to a temperature of 820<sup>0</sup> C and then cooled rapidly using a coolant emulsion (dromus o

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Dissertations / Theses on the topic "Dromus coolant"

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Cunningham, Mark Huzzard. "Effect of coolant velocity on the fragmentation of single melt drops in water." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ29587.pdf.

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Cunningham, Mark Huzzard. "Effect of coolant velocity on the fragmentation of single melt drops in water." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=27214.

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Flash X-ray and high speed photography were used to experimentally investigate the fragmentation process of single tin drops (0.5 g) in water during a steam explosion. Water velocities ranging from 9 to 28 m/s and a melt temperature of 800$ sp circ$C were used in order to study the effect of the water velocity on the drop fragmentation. Tests were also conducted in which the drop break-up was due entirely to hydrodynamic effects to evaluate the influence of the thermal energy on the fragmentation mechanism.<br>Results showed that there was a transition from thermal to hydrodynamic fragmentatio

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Vukasinovic, Bojan. "Vibration-induced droplet atomization." Diss., Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/17237.

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Gajcowski, Edward J. "Transient model for liquid droplets evaporating from heated solid surfaces." Thesis, Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/17383.

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Pyrtle, Frank III. "Vibration Induced Droplet Generation from a Liquid Layer for Evaporative Cooling in a Heat Transfer Cell." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7487.

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During this investigation, vibration induced droplet generation from a liquid layer was examined as a means for achieving high heat flux evaporative cooling. Experiments were performed in which droplets were generated from a liquid layer using a submerged vibrating piezoelectric driver. Parameters determined during this investigation of droplet generation were droplet mass flow rate, droplet size, driver frequency, driver voltage, and liquid layer thickness. The results showed that as the liquid layer thickness was increased, the frequencies and frequency ranges at which droplet generation

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Terblanche, Riaan. "Investigation of performance enhancing devices for the rain zones of wet-cooling towers." Thesis, Stellenbosch : Stellenbosch University, 2008. http://hdl.handle.net/10019.1/21441.

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Thesis (MScEng)--University of Stellenbosch, 2008.<br>ENGLISH ABSTRACT: The performance of a natural draught wet-cooling tower can be improved by reducing the average drop size in the rain zone. In this thesis, the effect of installing different horizontal grids below the fill on drop size in the rain zone is investigated experimentally and theoretically. A specially designed horizontal grid consisting of evenly spaced slats and a grid made from expanded metal sheeting are tested. Drop size distribution measurements are taken below different cooling tower fills to determine the respective

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Oosthuizen, Henry Randolph. "Enhancement of cooling tower performance by manipulation of rain zone drop size." Thesis, Stellenbosch : Stellenbosch University, 1995. http://hdl.handle.net/10019.1/54736.

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Thesis (MEng)--University of Stellenbosch, 1995.<br>AFRIKAANSE OPSOMMING: Die moontlikheid om die warmteoordrag in die reensone van 'n natuurlike trek nat koeltoring te vcrbeter deur die gemiddelde druppel diameter van die sproei te verminder is ondersoek. Eksperimentele wcrk was daarop gerig om tipiese druppelgrootte verspreidings onder druppakking te bepaal, asook die verkryging van werklike verrigtings-data vir verskiJlende pakking en reensone kombinasies in 'n koeltoring toetsfasiliteit. 'n Fotografiese metode wat gebruik maak van beeldverwerkingstegniekc is ontwikkel om die druppelgr

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Castrillon, Escobar Sebastian. "Instabilité et dispersion de jets de corium liquides : analyse des processus physiques et modélisation dans le logiciel MC3D." Thesis, Université de Lorraine, 2016. http://www.theses.fr/2016LORR0102/document.

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Lors d’un accident grave dans un réacteur nucléaire (REP ou REB en particulier), le combustible fondu (corium) peut se déverser dans le réfrigérant (eau). L’interaction entre les deux fluides est appelée Interaction Combustible-Réfrigérant. Sous certaines conditions, cette interaction peut conduire à une «explosion de vapeur» qui peut menacer le confinement du réacteur nucléaire. L’ICR est une interaction de caractère multiphasique complexe où divers phénomènes physiques interviennent de manières couplées. Elle débute par une phase de mélange entre les fluides (prémélange), se traduisant par l

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Book chapters on the topic "Dromus coolant"

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Schmidt, Johannes Benedikt, Jan Breitenbach, Ilia V. Roisman, and Cameron Tropea. "Interaction of Drops and Sprays with a Heated Wall." In Fluid Mechanics and Its Applications. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-09008-0_17.

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AbstractSpray-wall interactions take place in many technical applications such as spray cooling, combustion processes, cleaning, wetting of surfaces, coating and painting, etc. The outcome of drop impact onto hot surfaces depends on a variety of parameters like for example material and thermal properties of the liquid and wall, substrate wetting properties, surrounding conditions which determine the saturation temperature, spray impact parameters and surface temperature. The aim of the current project is to improve knowledge of the underlying physics of spray-wall interactions. As an important

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Sontheimer, Henrik, Christiane Schlawitschek, Stefan Batzdorf, Peter Stephan, and Tatiana Gambaryan-Roisman. "Numerical Simulation of Heat Transfer and Evaporation During Impingement of Drops onto a Heated Wall." In Fluid Mechanics and Its Applications. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-09008-0_14.

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AbstractIn this study, hydrodynamics and heat transport during the impact of single and multiple drops onto a hot wall are studied numerically. The heat transfer in the vicinity of the three-phase contact line, where solid, liquid and vapour meet, contributes significantly to the global heat transfer. The microscale processes in the region of the three-phase contact line are analysed using a lubrication approximation. The results in the form of correlations are integrated into an overall model. The impingement of drops on a macro scale is simulated using a numerical model developed within the

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Rodríguez, E. A., S. Alvarez, and R. Martín. "Water Drops as a Natural Cooling Resource. Physical Principles." In Architecture and Urban Space. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-017-0778-7_74.

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Lu, Jinbin, Lifeng Zheng, Feng Chen, Liang Yang, and Qiang Zhang. "Experimental Study on Physical and Mechanical Characteristics and Microstructure of Sandstone After High Temperature-Water Cooling Treatment." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-4090-1_27.

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AbstractIn geothermal energy development, high-temperature rock mass will go through the process of water cooling. It is of great significance to study the physical and mechanical characteristics and microstructure of high-temperature rock after water cooling for the long-term stability analysis of underground engineering. Based on this, the surface characteristics, mass, and volume variation of sandstone cooled by water at high temperatures (100, 200, 400, 600, 800, and 1000 °C) were investigated. Using the Rock Top multifield coupling tester, a series of axial compressions and longitudinal w

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Gholijani, Alireza, Sebastian Fischer, Tatiana Gambaryan-Roisman, and Peter Stephan. "High Resolution Measurements of Heat Transfer During Drop Impingement onto a Heated Wall." In Fluid Mechanics and Its Applications. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-09008-0_15.

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AbstractDrop impact on a hot surface heated above the saturation temperature of the fluid plays an important role in spray cooling. The heat transferred from the wall to the fluid is closely interrelated with drop hydrodynamics. If the surface temperature is below the Leidenfrost temperature, the heat transport strongly depends on the transport phenomena in the vicinity of the three-phase contact line. Due to extremely high local heat flux, a significant fraction of the total heat flow is transported through this region. The local transport processes near the three-phase contact line, and, the

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Nédélec, Anne. "Earth’s internal cooling through time." In Earth and Life. Oxford University PressOxford, 2025. https://doi.org/10.1093/9780198945451.003.0006.

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Abstract Earth dissipates its internal heat by convection in the liquid outer core and solid mantle, and by conduction in the lithosphere. Magmatism and tectonics are the manifestations of heat transfer. Ascending plumes in the mantle begin to melt at shallow depth and correspond to hot spots. Today, plate tectonics is responsible for the subduction of oceanic plates older than 200 million years. Oceanic lithosphere is regenerated at oceanic ridges. Continental plates are less dense and cannot be subducted. Plate tectonics began 3.2 billion years ago. Before then, the lithosphere was likely le

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Rottoli, Marco, Daniele Agazzi, Marcello Garavaglia, and Fabio Grisoni. "EMbaffle® Heat Transfer Technology Step-Up in CO2 Reduction." In Heat Transfer - Design, Experimentation and Applications [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96253.

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EMbaffle® is a proprietary shell and tube heat exchanger technology, designed to improve performance by pressure drops control, with suppressed tube vibrations. Developed to minimize fouling accumulation in crude oil units, the technology has proved to be effective in Gas treatment and Petrochemical, supporting the increase in gas–gas and cooling water flow rate per-unit demand, and in Renewable CSP, where Molten Salt units get a primary role in thermal storage and power efficiency. Diamond shape and baffle-grids number are the instruments for the design engineer to exploit exchanger efficienc

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Fox, Michael H. "About Those Accidents." In Why We Need Nuclear Power. Oxford University Press, 2014. http://dx.doi.org/10.1093/oso/9780199344574.003.0017.

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A nuclear power plant is undergoing an emergency shutdown procedure known as a “scram” when there is an unusual vibration and the coolant level drops precipitously. Subsequent investigation by a shift supervisor reveals that X-rays of welds have been falsified and other problems exist with the plant that could potentially cause a core meltdown that would breach the containment building and cause an explosion. However, the results of the investigation are squelched and the plant is brought up to full power. The shift supervisor takes the control room hostage but is then shot by a SWAT team as t

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Starace, Giuseppe, Silvia Macchitella, and Gianpiero Colangelo. "Fin and Tube HVAC Evaporators Design by the Hybrid Method." In Cooling Technologies - Technologies and Systems to Guarantee Thermal Comfort in Efficient Buildings [Working Title]. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.1001124.

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The hybrid method allows the overall performance of a fin and tube evaporator to be determined beginning from local analysis results and combining the accuracy of the data obtained with a small-scale numerical approach with the low processing costs of the analytical approaches. The program calculates heat transfer rates, pressure drops, and temperature fields for both sides of the heat exchanger using regression equations derived from known data (analytical, experimental, or numerical).The hybrid method has been progressively refined and enhanced with the goal of modeling heat exchangers more

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Abdulrahman Alpha, Ndah, and Aondoyila Kuhe. "Heat Transfer Enhancement on Staggered Perforated Circular Pin-Fin Heat Sink: An Experimental Assessment." In Current Research in Thermal Conductivity [Working Title]. IntechOpen, 2024. http://dx.doi.org/10.5772/intechopen.1007019.

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This experimental study examines how forced convective flow affects heat transfer properties in a rectangular channel with staggered pin fins featuring different perforation patterns under constant heat flux conditions across Reynolds numbers (Re) ranging from 2.0 × 103 to 12 × 103. The study compares cylindrical pin fins with solid pin fins and those featuring circular longitudinal (L), longitudinal/transverse (LT), and longitudinal/transverse/vertical (LTV) perforations to determine optimal perforation configurations for enhanced heat transfer performance. The experiment uses a Peltier modul

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Conference papers on the topic "Dromus coolant"

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Cheong, Brian C. Y., Peter T. Ireland, and Annegret W. Siebert. "High Performance Single-Phase Liquid Coolers for Power Electronics." In ASME 3rd International Conference on Microchannels and Minichannels. ASMEDC, 2005. http://dx.doi.org/10.1115/icmm2005-75027.

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This paper presents three generically similar impingement liquid coolers that have been engineered for cooling power electronics on future aero gas turbines. The thermal and hydraulic performances of the coolers have been compared with that of a commercial, state-of-the-art pin fin liquid cooler. It is demonstrated that the impingement liquid coolers outperform thermally the baseline pin fin cooler, and with significantly lower pressure drops. The impingement liquid coolers could also be easily modified to trade reduced pressure drop against higher flowrate or reduced thermal performance. A sc

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Baviskar, Shreyas, Dipankar Chatterjee, Kiran Chandrakant Jawale, and A. Rammohan. "Battery Thermal Management of Lithium Prismatic Cell Battery by Using Different Coolants." In Automotive Technical Papers. SAE International, 2023. http://dx.doi.org/10.4271/2023-01-5059.

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<div class="section abstract"><div class="htmlview paragraph">Lithium (Li)-based batteries have wide applications in the everyday gadgets. Li-based batteries have prominent usage in the automotive sector. All the major OEMs for manufacturing hybrid electric vehicles (HEVs) and electric vehicles (EVs) use only Li batteries and are still going to continue for the next decades. However, during the operation of these batteries, they are susceptible to environmental and battery factors. The amount of charge currently taken in or out influences the internal resistance and temperature of

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Salcudean, M., I. Gartshore, K. Zhang, and Y. Barnea. "Leading Edge Film Cooling of a Turbine Blade Model Through Single and Double Row Injection: Effects of Coolant Density." In ASME 1994 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1994. http://dx.doi.org/10.1115/94-gt-002.

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Experiments have been conducted on a large model of a turbine blade. Attention has been focussed on the leading edge region, which has a semi-circular shape and four rows of film cooling holes positioned symmetrically about the stagnation line. The cooling holes were oriented in a spanwise direction with an inclination of 30° to the surface, and had streamwise locations of ±15° and ±44° from the stagnation line. Film cooling effectiveness was measured using a heat/mass analogy. Single row cooling from the holes at 15° and 44° showed similar patterns: spanwise averaged effectiveness which rises

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Facchini, B., M. Surace, and S. Zecchi. "A New Concept of Impingement Cooling for Gas Turbine Hot Parts and Its Influence on Plant Performance." In ASME Turbo Expo 2003, collocated with the 2003 International Joint Power Generation Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/gt2003-38166.

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Significant improvements in gas turbine cooling technology are becoming harder as progress goes over and over. Several impingement cooling solutions have been extensively studied in past literature. An accurate and extensive numerical 1D simulation on a new concept of sequential impingement was performed, showing good results. Instead of having a single impingement plate, we used several perforated plates, connecting the inlet of each one with the outlet of the previous one. Main advantages are: absence of the negative interaction between transverse flow and last rows impinging jets (reduced d

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Wang, Da, Fenglei Niu, Weiqian Zhuo, Jingwen Ren, Zhangpeng Guo, and Hammad Aslam Bhatti. "Experimental Study of Debris-Loading Head Loss Test for PWR Fuel Assembly After LOCA." In 2017 25th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/icone25-67185.

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A loss of coolant accident (LOCA) in a PWR (pressurized water reactor) would generate debris from thermal insulation and other materials in the vicinity of the break. It is postulated that debris can transported to the containment sump strainer. Some of the debris may pass through the strainer and could challenge the long-term core cooling capability of the plant. To address this safety issue, the downstream effect tests for the PWR were performed. Sensitivity studies on pressure drops through LOCA-generated debris deposited on a fuel assembly were performed to evaluate the effects of debris t

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Wen, Panpan, Gen Li, Jinchen Gao, Yupeng Li, Akifumi Yamaji, and Junjie Yan. "Numerical Study of Collision Behavior of Melt Drops During Fuel-Coolant Interaction." In 2020 International Conference on Nuclear Engineering collocated with the ASME 2020 Power Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/icone2020-16206.

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Abstract The collision dynamics between two droplets plays an important role in various disciplines of nature and practical interests, such as fuel-coolant interaction (FCI), fuel combustion in engines, and various spraying process. FCI presents in nuclear reactor severe accident when the melt relocates into the coolant in the lower head with violent disturbance and vigorous heat transfer. The purpose of this study is to investigate the collision behavior of melt droplets during fuel-coolant interaction. The collision of two equal-sized droplets has been simulated in 3D by using the volume of

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Bouloudenine, Aimad, Liangxing Li, Zutao Xiang, Shang Shi, and Muhammad Abu Bakar. "Numerical Simulation of Single/Two-Phase Flow in a Stratified Porous Bed." In 2024 31st International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/icone31-135388.

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Abstract This study investigates the coolability of debris beds formed from Fuel-Coolant Interactions (FCI) within nuclear reactors, a critical safety concern when cooling systems fail, leading to significant core melting in light-water reactors. The research focuses on understanding the flow dynamics within two-layer stratified porous beds, which develop from the mixture of corium and coolant, particularly around the interface between layers. Using ANSYS Fluent software, numerical simulations were conducted to estimate velocity profiles and pressure drops across a stratified porous structure.

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Wang, Xi, Tian-shu Li, Xi Huang, and Yan-hua Yang. "Analysis of Fuel Coolant Interaction in PWR With Experiment and Computer Code." In 18th International Conference on Nuclear Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/icone18-29642.

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Fuel-Coolant Interaction can be divided into two stages including premixing and explosion. In the stage of premixing, the liquid corium flowing from the core fragmented into drops, and the drops may fragmented into fine fragmentations leads to steam explosion in the condition of triggering. In the severe accident, the contact of melt-fuel and coolant may result into steam explosion, which may threaten integrity of containment. The prediction of steam explosion must be based on results of experimental research and on simulations with computer code. In this work, the experimental result of low t

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Baek, Seung Il, and Savas Yavuzkurt. "Effects of Oscillations in the Main Flow on Film Cooling at Various Frequencies at a Low Blowing Ratio." In ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/gt2018-75440.

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The objective of this study was to investigate the effects of oscillations in the main flow on film cooling at various single frequencies at a low average blowing ratio of M = 0.5. The oscillations in the main flow could be a result of combustion instabilities that have been one of the major concerns for gas turbine industry. Understanding the effect of the instabilities on film cooling is important for better design of the gas turbine engines. The frequencies from 268 to 2144 Hz were identified as the dominant frequencies from a Fourier analysis of a combustor instability data on pressure osc

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Wahed, M. A., and M. N. A. Hawlader. "An Analysis of a Direct Contact Ice Slurry Generator." In ASME 2008 Heat Transfer Summer Conference collocated with the Fluids Engineering, Energy Sustainability, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/ht2008-56173.

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Attempts have been made to study an ice slurry generation system where two immiscible liquids, water and a coolant, are used to produce ice slurry by direct contact heat transfer. A mathematical model has been developed to evaluate the heat transfer phenomena between the coolant drops and the water in the ice slurry generation system. In this process, all the important variables that affect the direct contact heat transfer between these two fluids were incorporated into the simulation model to evaluate thermal performance of the system. Experiments were performed on an ice slurry generator usi

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Reports on the topic "Dromus coolant"

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Butterweck, Gernot, Alberto Stabilini, Benno Bucher, et al. Aeroradiometric measurements in the framework of the swiss exercise ARM23. Paul Scherrer Institute, PSI, 2024. http://dx.doi.org/10.55402/psi:60054.

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The flights of the civil (ARM23c) and military (ARM23m) parts of the exercise were performedbetween June 19th and 23rd and between September 11th and September 15th,respectively. The measuring system RLL001 was employed for all measurements. As usual, during the civil exercise the environs of some of the Swiss nuclear power plants were screened, on behalf of the Swiss Nuclear Safety Inspectorate (ENSI). At the site of the nuclear power plant Gösgen (KKG) with its pressurized water reactor, the activation products of the primary coolant loop are kept in the well shielded reactor building, thus

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