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Artigos de revistas sobre o tema "Cooling"

Autor: Grafiati

Publicado: 4 de junho de 2021

Última modificação: 25 de julho de 2025

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1

Che Sidik, Nor Azwadi, and Shahin Salimi. "The Use of Compound Cooling Holes for Film Cooling at the End Wall of Combustor Simulator." Applied Mechanics and Materials 695 (November 2014): 371–75. http://dx.doi.org/10.4028/www.scientific.net/amm.695.371.

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Gas turbine cooling can be classified into two different schemes; internal and external cooling. In internal cooling method, the coolant provided by compressor is forced into the cooling flow circuits inside turbine components. Meanwhile, for the external cooling method, the injected coolant is directly perfused from coolant manifold to save downstream components against hot gases. Furthermore, in the latter coolant scheme, coolant is used to quell the heat transfer from hot gas stream to a component. There are several ways in external cooling. Film cooling is one of the best cooling systems f

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2

Shi, Li, Zhiying Sun, and Yuanfeng Lu. "The Combined Influences of Film Cooling and Thermal Barrier Coatings on the Cooling Performances of a Film and Internal Cooled Vane." Coatings 10, no. 9 (2020): 861. http://dx.doi.org/10.3390/coatings10090861.

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This paper presents a numerical investigation on the combined influences of film cooling and thermal barrier coatings (TBCs) on the cooling performances of a NASA C3X guide vane. The results show that: (1) film cooling on the pressure side is more effective than suction side, especially on the trailing edge where multiple cooling and thermal protection techniques include internal cooling and TBCs are necessary. (2) TBCs show positive and negative roles in improving cooling performance at the same time for the coated vane with or without film cooling. Without film cooling, TBCs show negative ro

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3

Wang, Chen, Chunhua Wang, and Jingzhou Zhang. "Parametric Studies of Laminated Cooling Configurations: Overall Cooling Effectiveness." International Journal of Aerospace Engineering 2021 (February 10, 2021): 1–15. http://dx.doi.org/10.1155/2021/6656804.

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Combing the advantages of film cooling, impingement cooling, and enhanced cooling by pin fins, laminated cooling is attracting more and more attention. This study investigates the effects of geometric and thermodynamic parameters on overall cooling effectiveness of laminated configuration, and model experiments were carried out to validate the numerical results. It is found that the increases in film cooling hole diameter and pin fin diameter both result in the increase in cooling effectiveness, but the increases in impingement hole diameter, impingement height, and spanwise hole pitch degrade

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4

Friedrichs, S., H. P. Hodson, and W. N. Dawes. "The Design of an Improved Endwall Film-Cooling Configuration." Journal of Turbomachinery 121, no. 4 (1999): 772–80. http://dx.doi.org/10.1115/1.2836731.

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The endwall film-cooling cooling configuration investigated by Friedrichs et al. (1996, 1997) had in principle sufficient cooling flow for the endwall, but in practice, the redistribution of this coolant by secondary flows left large endwall areas uncooled. This paper describes the attempt to improve upon this datum cooling configuration by redistributing the available coolant to provide a better coolant coverage on the endwall surface, while keeping the associated aerodynamic losses small. The design of the new, improved cooling configuration was based on the understanding of endwall film-coo

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5

Harrington, Mark K., Marcus A. McWaters, David G. Bogard, Christopher A. Lemmon, and Karen A. Thole. "Full-Coverage Film Cooling With Short Normal Injection Holes." Journal of Turbomachinery 123, no. 4 (2001): 798–805. http://dx.doi.org/10.1115/1.1400111.

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An experimental and computational investigation was conducted on the film cooling adiabatic effectiveness of a flat plate with full coverage film cooling. The full coverage film cooling array was comprised of ten rows of coolant holes, arranged in a staggered pattern, with short L/D=1, normal coolant holes. A single row of cooland holes was also examined to determine the accuracy of a superposition prediction of the full coverage adiabatic effectiveness performance. Large density coolant jets and high mainstream turbulence conditions were utilized to simulate realistic engine conditions. High-

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6

Ding, Yuzhang, Haocheng Ji, Rui Liu, Yuwei Jiang, and Minxiang Wei. "Study of the thermal behavior of a battery pack with a serpentine channel." AIP Advances 12, no. 5 (2022): 055028. http://dx.doi.org/10.1063/5.0089378.

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To effectively enhance the thermal security of the Li-ion battery packs used in the electric vehicle industry, novel cooling systems equipped with serpentine channels are established. Then, the heat generation model is established and verified experimentally. In this research study, the structure of the cooling channel, the coolant velocity, the coolant temperature, and the coolant flow direction are considered to be the influencing factors. The results demonstrate that, by adopting the serpentine cooling channel, a better thermal conductivity can be obtained, and the type-B cooling system pos

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7

Zulfikar, Zulfikar. "Penambahan Water Coolant Pada Cooling Tower Tipe Counter Flow." Jurnal Mesin Nusantara 1, no. 2 (2019): 85–92. http://dx.doi.org/10.29407/jmn.v1i2.13566.

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Cooling tower adalah alat penukar kalor dengan fluida kerja air dan udara yang berfungsi mendinginkan air dengan kontak langsung dengan udara yang mengakibatkan sebagian kecil air menguap. Dalam kebanyakan cooling tower yang bekerja pada sistem pendinginan udara menggunakan pompa sentrifugal untuk menggerakkan air vertikal ke atas melintasi menara. Semua cooling tower yang bekerja akan melepaskan kalor melalui kondensor, refrigeran akan melepas kalornya kepada cooling tower sehingga air menjadi panas. Selanjutnya air panas ini akan dipompakan ke cooling tower. Dalam Penelitian ini peneliti aka

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8

Zhuang, Yutao, Honglin Li, Timothy H. Lee, Bangwei Liu, and Jiahuan Cui. "Numerical investigation on cooling characteristics of an additively manufacturable composite cooling structure with swirling outflow." Journal of Physics: Conference Series 3041, no. 1 (2025): 012033. https://doi.org/10.1088/1742-6596/3041/1/012033.

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Abstract Innovative structural designs for cooling technologies play a crucial role in the advancement of next-generation aero-engines. This study proposes an additively manufacturable composite cooling structure featuring swirling coolant outflow, and its cooling characteristics are investigated using numerical simulation. The operating conditions considered include blowing ratios of 0.5 and 2.0, analyzed under conjugate heat transfer and adiabatic contexts. The findings indicate that the swirl composite cooling structure exhibits significantly higher cooling effectiveness in comparison of th

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9

Wang, J. H., J. Messner, and H. Stetter. "An Experimental Investigation on Transpiration Cooling Part II: Comparison of Cooling Methods and Media." International Journal of Rotating Machinery 10, no. 5 (2004): 355–63. http://dx.doi.org/10.1155/s1023621x04000363.

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This article attempts to provide a cooling performance comparison of various mass transfer cooling methods and different cooling media through two experiments. In the first experiment, pressurized air was used as a cooling medium and two different circular tubes were used as specimens. One is made of impermeable solid material with four rows of discrete holes to simulate film cooling, and the other consists of sintered porous material to create a porous transpiration cooling effect. The natures of transpiration cooling and film cooling including leading and trailing edge injection cooling were

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10

Song, Hanlin, Meng Zheng, Zheshu Ma, Yanju Li, and Wei Shao. "Numerical simulation of thermal performance of cold plates for high heat flux electronics cooling." Thermal Science, no. 00 (2023): 261. http://dx.doi.org/10.2298/tsci230715261s.

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High heat flow density electronic components need cooling plates with strong heat exchange capacity to maintain temperature balance. To obtain better cooling performance, four different flow channel types of cooling plates are designed, including an S-type channel, Z-type channel, mosaic channel and double-layer channel. The maximum temperature of the cooling plate, outlet temperature and pressure drop under different working conditions and coolant are analyzed by numerical simulation. The simulation results show that the double-layer channel design can effectively enhance the heat transfer ef

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11

Gao, Y., S. Zhou, and Y. Zhang. "A Preliminary Study of Variable Strength Activation of Coolant for Precision Machining." Advanced Materials Research 76-78 (June 2009): 635–40. http://dx.doi.org/10.4028/www.scientific.net/amr.76-78.635.

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A new active cooling method is proposed for increased cooling effectiveness of coolant in grinding. It is based on variable strength activation of coolant together with active cooling to allow better machining heat transfer through mist evaporation. Multiple actuators are used through superposition and focusing. A device of variable strength coolant activation has been developed. Preliminary experimental tests were conducted to test the feasibility of the proposed cooling method. It is found that, using the proposed variable strength activation, an improvement of 87.6% in Ra value and 71.9% in

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12

Sadov, V. V., and N. I. Kapustin. "AUTOMATED INSTALLATION FOR MILK COOLING USING A NATURAL COOLING AGENT." Vestnik Altajskogo gosudarstvennogo agrarnogo universiteta, no. 11 (2021): 116–22. http://dx.doi.org/10.53083/1996-4277-2021-205-11-116-122.

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In the chain from milk production to the sale of dairy products, the process of ensuring the required temperature is the main one. Moreover, to cool the milk, the tempera-ture of the cooling agent should be above milk freezing. Taking into account the fact that the process of cooling and storing milk in a chilled form imposes strict requirements for reliability and quality of management on farms, compressor refrigeration units have been used in recent years despite high energy consumption. Theanalysis of technical solu-tions in this direction by the example of farms of the Altai and Novosibirs

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13

Adzhar, M. S. M., M. N. Harun, and A. P. M. Saad. "Cooling channel selection for big rectangular plastic parts in injection molding." IOP Conference Series: Materials Science and Engineering 1291, no. 1 (2023): 012022. http://dx.doi.org/10.1088/1757-899x/1291/1/012022.

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Abstract There are various of types cooling channel designs that have been explored by many researchers to find the best cooling channel that resulted in the optimum results in the injection molding process. The previous research reported that the correct selection of cooling channels in mold design affects the quality of the product and the total cycle time, thus it affected the quality and profit in the manufacturing [1]. The problem in mold design is selecting the correct cooling channel design to ensure the heat transfer distribution is in uniform condition. This paper analysed the effecti

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14

Madyshev, Ilnur, Vitaly Kharkov, Anna Mayasova, and Ravshan Kurbangaliev. "Cooling efficiency of hybrid cooling tower with finned tube radiator." E3S Web of Conferences 458 (2023): 01003. http://dx.doi.org/10.1051/e3sconf/202345801003.

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Hybrid cooling towers are a new type of equipment that can be used in cooling water circuits. In this work, a hybrid cooling tower is developed, in which inclined corrugated plates are used as a fill, and the circulating liquid flows through an internal tubular radiator, the finned surface of which is continuously washed by the coolant water. The purpose of the work is to perform an experimental evaluation of the cooling efficiency of the developed hybrid system used for circulating water cooling. It was obtained that at the wetting density of the coolant water equal to 28.3 m3/(m2·h) and the

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15

Somasekharan, Nithin, A. R. Srikrishnan, Harihara Sudhan Kumar, Krishna Prasad Ganesh, Akram Mohammad, and Ratna Kishore Velamati. "Enhancement of Film Cooling Effectiveness in a Supersonic Nozzle." Entropy 25, no. 3 (2023): 481. http://dx.doi.org/10.3390/e25030481.

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Film cooling as applied to rocket nozzles is analyzed numerically with emphasis on the assessment of the effect of the mixing of coolant with the hot stream. Cooling performance, as characterized by cooling effectiveness, is studied for three different coolants in the three-dimensional, turbulent flow field of a supersonic convergent-divergent nozzle operating with a hot stream temperature of 2500 K over a range of blowing ratios. The coolant stream is injected tangentially into the mainstream using a diffuser-type injector. Parameters influencing the effectiveness, such as coolant injector co

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16

Kuo, Chil-Chyuan, Jing-Yan Xu, Yi-Jun Zhu, and Chong-Hao Lee. "Effects of Different Mold Materials and Coolant Media on the Cooling Performance of Epoxy-Based Injection Molds." Polymers 14, no. 2 (2022): 280. http://dx.doi.org/10.3390/polym14020280.

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Metal additive manufacturing techniques are frequently applied to the manufacturing of injection molds with a conformal cooling channel (CCC) in order to shorten the cooling time in the injection molding process. Reducing the cooling time in the cooling stage is essential to reducing the energy consumption in mass production. However, the distinct disadvantages include higher manufacturing costs and longer processing time in the fabrication of injection mold with CCC. Rapid tooling technology (RTT) is a widely utilized technology to shorten mold development time in the mold industry. In princi

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17

Xi, Lei, Qicheng Ruan, Yuan Gao, Jianmin Gao, Liang Xu, and Yunlong Li. "Numerical study on cooling performance and thermal stress characteristic of an f-class gas turbine stator blade." Thermal Science, no. 00 (2024): 178. http://dx.doi.org/10.2298/tsci240422178x.

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In this study, a coupled numerical computation approach integrating aerothermal and thermomechanical effects was employed to investigate the cooling efficiency and thermal stress characteristics of gas turbine stator blades. A comprehensive analysis was conducted considering varying turbulence intensities in the coolant flow (spanning from 0.05 to 0.15) and different coolant media configurations, including pure air, dual-medium mixture of air and steam, and pure steam. The distributional traits of cooling efficiency and thermal stress on the stator blade surface under these conditions were met

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18

Deng, Qinghua, Huihui Wang, Wei He, and Zhenping Feng. "Cooling Characteristic of a Wall Jet for Suppressing Crossflow Effect under Conjugate Heat Transfer Condition." Aerospace 9, no. 1 (2022): 29. http://dx.doi.org/10.3390/aerospace9010029.

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The leading edge is the critical portion for a gas turbine blade and is often insufficiently cooled due to the adverse effect of Crossflow in the cooling chamber. A novel internal cooling structure, wall jet cooling, can suppress Crossflow effect by changing the coolant flow direction. In this paper, the conjugate heat transfer and aerodynamic characteristics of blades with three different internal cooling structures, including impingement with a single row of jets, swirl cooling, and wall jet cooling, are investigated through RANS simulations. The results show that wall jet cooling combines t

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19

Zulhafril, Herman, Jasman Jasman, and Kimberly June Tespoer. "The Effect of Cooling Media on Tensile Strength of Medium Carbon Steel in Post Welding Process Using Electric Welding (SMAW) with E7018 Electrodes." Teknomekanik 3, no. 2 (2020): 62–69. http://dx.doi.org/10.24036/teknomekanik.v3i2.6472.

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The use of cooling media in post welding process will affect the tensile strength of a material. This study aims to determine how much the influence of using cooling media in post welding and which cooling media is appropriate to use. The process is done by comparing the tensile strength of each cooling media, namely the cooling media of water, air, and coolant. The use of cooling media is carried out after the welding process, until the material that is ready to be welded reaches room temperature. Based on the experiments that have been conducted, the use of post-welding cooling media affects

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20

Wang, Wen, Jiahuan Cui, and Shaoxing Qu. "Effects of hole arrangement and trenched hole on multirow film cooling." AIP Advances 12, no. 4 (2022): 045205. http://dx.doi.org/10.1063/5.0082980.

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Multirow film cooling is an advanced cooling method to provide effective surface cooling for gas turbine components exposed to high temperature. In this paper, the performance of multirow film cooling under different configurations is investigated numerically. The geometrical parameters, including the hole arrangement, hole orientation, and trenched hole, are considered. The numerical setup is validated before the performances of different cooling configurations are compared. The flow and heat transfer characteristics of the various cooling configurations are analyzed, and the different row-to

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21

Maurits Dae and Stefanus Neno. "Maintenance Sistem Pendingin Motor Jupiter MX 135 CC." Venus: Jurnal Publikasi Rumpun Ilmu Teknik 3, no. 2 (2025): 63–73. https://doi.org/10.61132/venus.v3i2.800.

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The cooling system on the Jupiter MX 135 CC motorcycle functions to maintain a stable engine temperature to prevent overheating. There are two main types of cooling systems on motorcycles: Air Cooling System and Liquid Cooling System. In the Air Cooling System, the working principle involves heat generated by the motorcycle engine being dissipated through cooling fins located around the engine block. Air that flows through the fan or moves as the motorcycle runs will carry away the heat. Meanwhile, in the Liquid Cooling System, the working principle involves coolant (usually a mixture of water

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22

Li, Yi, Peng-Xiao Zhu, Cai Tang, and Zhi Sun. "Effects of Quenching Medium on Microstructure and Mechanical Properties of High Chromium Cast Iron." Crystals 12, no. 10 (2022): 1332. http://dx.doi.org/10.3390/cryst12101332.

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The cooling properties of different cooling mediums were studied and heat treatment of high chromium cast iron was carried out by different cooling mediums. The results showed that the maximum cooling rate, cooling rate at 300 °C and the quenching liquid cooling capacity of water at 20 °C was 193.6 °C/s, 88.6 °C/s and 2431.1, respectively. With the increase in PAG concentration, the maximum cooling rate and the cooling rate at 300 °C of the coolant decreased. The microstructure of high chromium cast iron treated by water cooling, 10% PAG coolant and 20% coolant was white carbide + tempered mar

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23

Pandey, Amit Kumar, Raghav Sharma, Nikhil, et al. "Investigating the effect of coolant on cooling rate of engine oil used in automobile industry using Arduino interfaced temperature sensor." Physics Education 59, no. 2 (2024): 025026. http://dx.doi.org/10.1088/1361-6552/ad2558.

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Abstract Heat is lost by the system due to temperature difference between the hot object and surroundings. Two models which explain cooling are conduction-convection method and radiation method. During an automobile engine operation, both engine and engine oil get heated up. To overcome the problem of excessive heat generated, coolant is used to cool down the system. In present study, cooling rate of engine oil kept at high temperature was studied in the absence and presence of coolant. In the absence of coolant, engine oil follows the natural law of cooling stated by Newton and follows the ex

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24

Yudiyanto, Eko, Ridho Surya Setiabudi, Agus Hardjito, Satworo Adiwidodo, and Bayu Pranoto. "Effect of Velocity and Type of Cooling Fluid on Peltier Heat Transfer for Car Cabin Cooling Applications." JOURNAL OF SCIENCE AND APPLIED ENGINEERING 5, no. 2 (2022): 76. http://dx.doi.org/10.31328/jsae.v5i2.4036.

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This research used the Peltier element as a car cabin cooler. This research aimed to compare the results of the lowest temperature produced by the Peltier element on the hot side. The design of this monitoring tool consists of LM35 as a temperature sensor and an electric velocity sensor to measure the velocity of the cooling fluid. Arduino Uno Microcontroller to control the system before being displayed to the LCD. The type of research used in this research is experimental research. In this study, variations in fluid flow velocity and type of cooling fluid were carried out. The fluid used is a

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Huang, Yao Ying, Xiao Man Lv, Dong Sheng Shen, and Kai Ping Tian. "Optimizing Control Trial of Concrete Dam in Middle-Later Cooling Age." Applied Mechanics and Materials 488-489 (January 2014): 350–53. http://dx.doi.org/10.4028/www.scientific.net/amm.488-489.350.

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Optimizing control of concrete dam in middle-later cooling age is discussed in allusion to the complex multi-factor problems which includes pipe cooling temperature, pipe cooling flow and pipe cooling time. This paper suggested an optimizing control method of concrete dam in middle-later cooling age based on the temperature dynamic prediction model of pouring storehouse. Combining the current measured temperature, it calculated the temperature cooling curve based on the pipe cooling calculation formula without heat resource. Then optimal pipe cooling measures of concrete pouring storehouse is

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Khudheyer, Ahmed F., and Hussein T. Dhaiban. "Numerical Study Of Heat Transfer In Cooling Passages Of Turbine Blade." Journal of Engineering 19, no. 3 (2023): 342–56. http://dx.doi.org/10.31026/j.eng.2013.03.05.

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As the temperature of combustion gases is higher than the melting temperature of the turbine materials, cooling of turbine parts in a gas turbine engine is necessary for safe operation. Cooling methods investigated in this computational study included cooling flow losses. Film-cooling is one typically used cooling method whereby coolant is supplied through holes passage, in present study the holes placed along the camber line of the blade. The subject of this paper is to evaluate the heat transfer that occur on the holes of blade through differentblowing coolant rates. The cases of this study

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Yeranee, Kirttayoth, and Yu Rao. "A Review of Recent Research on Flow and Heat Transfer Analysis in Additively Manufactured Transpiration Cooling for Gas Turbines." Energies 18, no. 13 (2025): 3282. https://doi.org/10.3390/en18133282.

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Advanced gas turbine cooling technologies are required to bridge the gap between turbine inlet temperatures and component thermal limits. Transpiration cooling has emerged as a promising method, leveraging porous structures to enhance cooling effectiveness. Recent advancements in additive manufacturing (AM) enable precise fabrication of complex transpiration cooling architectures, such as triply periodic minimal surface (TPMS) and biomimetic designs. This review analyzes AM-enabled transpiration cooling for gas turbines, elucidating key parameters, heat transfer mechanisms, and flow characteri

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28

An, Qing Long, Yu Can Fu, and Jiu Hua Xu. "The Application of Cryogenic Pneumatic Mist Jet Impinging in High-Speed Milling of Ti-6Al-4V." Key Engineering Materials 315-316 (July 2006): 244–48. http://dx.doi.org/10.4028/www.scientific.net/kem.315-316.244.

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To solve the problems caused by high temperature in the cutting zone during high-speed milling of Titanium alloys, some cooling methods are employed, such as cold air cooling, high pressure coolant jet impinging, MQL, etc. But all have their shortfalls, both in cooling efficiency and environmental pollution. Here a new high efficiency cooling technology-cryogenic pneumatic mist jet impinging (CPMJI) cooling technology is offered. In this technology, a little quantity of coolant is carried by high pressure cryogenic air (-20) and reaches the machining zone in the form of mist jet. This paper ma

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Yi, Baichuan, Yan Xiong, Zhigang Liu, Yan Liu, and Xiaopo Wei. "Influence of blowing ratio on double-wall cooling characteristics under the condition of high-temperature flue gas." Journal of the Global Power and Propulsion Society 8 (May 30, 2024): 177–87. http://dx.doi.org/10.33737/jgpps/186673.

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Double-wall cooling has been extensively investigated due to its exceptional cooling performance. However, most previous studies on the cooling characteristics of double-wall geometry have been conducted under non-reacting conditions, neglecting the influence of high-temperature flue gas radiation. In this paper, an experiment investigation was carried out to evaluate the impact of blowing ratio <italic>M</italic> and coolant-to-gas temperature ratio on the cooling characteristics of effusion/impingement cooling at reacting flow conditions. The experiments were performed at atmosph

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30

Ba, Wei, Xuesong Li, Xiaodong Ren, and Chunwei Gu. "Aero-thermal coupled through-flow method for cooled turbines with new cooling model." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 232, no. 3 (2017): 254–65. http://dx.doi.org/10.1177/0957650917731629.

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The aero-thermal–coupled phenomenon is significant in modern cooled turbines, and an aero-thermal coupled through-flow method has previously been developed by the authors for considering the influence of heat transfer and coolant mixing in through-flow design. However, the original cooling model is not capable of calculating the distribution of the coolant mass flow rate and pressure loss in complex cooling structures. Therefore, in this paper, a one-dimensional flow calculation for the internal coolant is introduced into the heat transfer calculation to further improve the through-flow coolin

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Lin, Yuzhen, Bo Song, Bin Li, and Gaoen Liu. "Measured Film Cooling Effectiveness of Three Multihole Patterns." Journal of Heat Transfer 128, no. 2 (2005): 192–97. http://dx.doi.org/10.1115/1.2137762.

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As an advanced cooling scheme to meet increasingly stringent combustor cooling requirements, multihole film cooling has received considerable attention. Experimental data of this cooling scheme are limited in the open literature in terms of different hole patterns and blowing ratios. The heat-mass transfer analogy method was employed to measure adiabatic film cooling effectiveness of three multihole patterns. Three hole patterns differed in streamwise row spacing (S), spanwise hole pitch (P), and hole inclination angle (α), with the first pattern S∕P=2 and α=30°, the second S∕P=1 and α=30°, an

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32

Patil, Mahesh, Satyam Panchal, Namwon Kim, and Moo-Yeon Lee. "Cooling Performance Characteristics of 20 Ah Lithium-Ion Pouch Cell with Cold Plates along Both Surfaces." Energies 11, no. 10 (2018): 2550. http://dx.doi.org/10.3390/en11102550.

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Temperature control of the lithium-ion pouch cells is crucial for smooth operation, longevity and enhanced safety in the battery-operated electric vehicles. Investigating the thermal behavior of lithium-ion pouch cells and optimizing the cooling performance are required to accomplish better performance, long life, and enhanced safety. In the present study, the cooling performance characteristics of 20 Ah lithium-ion pouch cell with cold plates along both surfaces are investigated by varying the inlet coolant mass flow rates and the inlet coolant temperatures. The inlet coolant mass flow rate i

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Patil, Mahesh Suresh, Satyam Panchal, Namwon Kim, and Moo-Yeon Lee. "Cooling Performance Characteristics of 20 Ah Lithium-Ion Pouch Cell with Cold Plates along Both Surfaces." energies 11, no. 10 (2018): 2550. https://doi.org/10.3390/en11102550.

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Temperature control of the lithium-ion pouch cells is crucial for smooth operation, longevity and enhanced safety in the battery-operated electric vehicles. Investigating the thermal behavior of lithium-ion pouch cells and optimizing the cooling performance are required to accomplish better performance, long life, and enhanced safety. In the present study, the cooling performance characteristics of 20 Ah lithium-ion pouch cell with cold plates along both surfaces are investigated by varying the inlet coolant mass flow rates and the inlet coolant temperatures. The inlet coolant mass flow rate i

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Maurya, Rajesh Kumar, M. S. Niranjan, Nagendra Kumar Maurya, and Shashi Prakash Dwivedi. "Development of a System to Control Flow of Coolant in Turning Operation." Journal of Mechanical Engineering 17, no. 1 (2020): 17–31. http://dx.doi.org/10.24191/jmeche.v17i1.15216.

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Automation of cooling system in machine tools is an effective method for achieving higher productivity and increased tool life. A cooling system is designed to control the operating temperature on the cutting tool tip by circulating coolant through a reservoir built on the top of the machine tool. This arrangement maintains the coolant flow rate as per variation of cutting tool tip temperature sensed by LM-35 temperature sensor which is located 1 cm away (calibrated distance) from the cutting tool tip and whose output voltage is linearly proportional to the temperature. Coolant flow rate is va

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Wilfert, Gu¨nter, and Stefan Wolff. "Influence of Internal Flow on Film Cooling Effectiveness." Journal of Turbomachinery 122, no. 2 (1999): 327–33. http://dx.doi.org/10.1115/1.555449.

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Film cooling experiments were conducted to investigate the effects of internal flow conditions and plenum geometry on the film cooling effectiveness. The film cooling measurements show a strong influence of the coolant inlet conditions on film cooling performance. The present experiments were carried out on a flat plate with a row of cylindrical holes oriented at 30 deg with respect to a constant-velocity external flow, systematically varying the plenum geometry and blowing rates 0.5⩽M⩽1.25. Adiabatic film cooling measurements using the multiple narrow-banded thermochromic liquid crystal techn

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Zhou, Chuang, Nanjia Yu, Shuwen Wang, et al. "The Influence of Thrust Chamber Structure Parameters on Regenerative Cooling Effect with Hydrogen Peroxide as Coolant in Liquid Rocket Engines." Aerospace 10, no. 1 (2023): 65. http://dx.doi.org/10.3390/aerospace10010065.

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Liquid rocket engines with hydrogen peroxide and kerosene have the advantages of high density specific impulse, high reliability, and no ignition system. At present, the cooling problem of hydrogen peroxide engines, especially with regenerative cooling, has been little explored. In this study, a realizable k-epsilon turbulence model, discrete phase model, eddy dissipation concept model, and 10-step 10-component reaction mechanism of kerosene with oxygen are used. The increased rib height of the regenerative cooling channel causes the inner wall temperature of the engine increases, the average

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Cabezon, Francisco A., Allan P. Schinckel, Carol S. Stwalley, and Robert M. Stwalley III. "Heat Transfer Properties of Hog Cooling Pad." Transactions of the ASABE 61, no. 5 (2018): 1693–703. http://dx.doi.org/10.13031/trans.12351.

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Abstract. Thermal stress on sows in modern farrowing operations has become a significant issue for the commercial pork industry. Purdue University researchers have developed a simple conductive hog cooling pad that has the potential to effectively alleviate a significant portion of that heat stress. The heat transfer properties of the cooling pad are crucial to the characterization of the pad and the success of the pad in the field. This article presents data collected showing the thermal profile of the cooling pad, the energy transfer of the pad in operation, and the effectiveness of the pad

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Shakouri, Ehsan, Hossein Haghighi Hassanalideh, and Seifollah Gholampour. "Experimental investigation of temperature rise in bone drilling with cooling: A comparison between modes of without cooling, internal gas cooling, and external liquid cooling." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 232, no. 1 (2017): 45–53. http://dx.doi.org/10.1177/0954411917742944.

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Bone fracture occurs due to accident, aging, and disease. For the treatment of bone fractures, it is essential that the bones are kept fixed in the right place. In complex fractures, internal fixation or external methods are used to fix the fracture position. In order to immobilize the fracture position and connect the holder equipment to it, bone drilling is required. During the drilling of the bone, the required forces to chip formation could cause an increase in the temperature. If the resulting temperature increases to 47 °C, it causes thermal necrosis of the bone. Thermal necrosis decreas

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PAGAR., MR SHAILESH J. "DESIGN AND ESTIMATION OF COOLING TOWER." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, no. 04 (2024): 1–5. http://dx.doi.org/10.55041/ijsrem31490.

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A cooling tower is a device that rejects waste heat to the atmosphere through the cooling of a coolant stream, usually a water stream to a lower temperature. Cooling towers may either use the evaporation of water to remove process heat and cool the working fluid to near the wet-bulb air temperature or, in the case of dry cooling towers, rely solely on air to cool the working fluid to near the dry-bulb air temperature using radiators. The natural draft cooling tower is an open, direct-contact system. It works using a heat exchanger, allowing hot water from the system to be cooled through direct

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Sirikasemsuk, Sarawut, Songkran Wiriyasart, Ruktai Prurapark, Nittaya Naphon, and Paisarn Naphon. "Water/Nanofluid Pulsating Flow in Thermoelectric Module for Cooling Electric Vehicle Battery Systems." International Journal of Heat and Technology 39, no. 5 (2021): 1618–26. http://dx.doi.org/10.18280/ijht.390525.

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We investigated the results of the cooling performance of the pulsating water/nanofluids flowing in the thermoelectric cooling module for cooling electric vehicle battery systems. The experimental system was designed and constructed to consider the effects of the water block configuration, hot and cold side flow rates, supplied power input, and coolant types on the cooling performance of the thermoelectric module. The measured results from the present study with the Peltier module are verified against those without the thermoelectric module. Before entering the electric vehicle battering syste

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Wang, Wen, Yan Yan, Yeqi Zhou, and Jiahuan Cui. "Review of Advanced Effusive Cooling for Gas Turbine Blades." Energies 15, no. 22 (2022): 8568. http://dx.doi.org/10.3390/en15228568.

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Turbine inlet temperature has continuously increased to improve gas turbine performance during the past few decades. Although internal convection cooling and traditional film cooling have contributed significantly to the current achievement, advanced cooling schemes are needed to minimize the coolant consumption and maximize the cooling efficiency for future gas turbines. This paper conducts a comprehensive review of advanced effusive cooling schemes for gas turbine blades. First, the background and the history of turbine blade cooling are introduced. Then, the metrics of effusive cooling effi

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Ye, Ben, Md Rubel, and Hongjun Li. "Design and Optimization of Cooling Plate for Battery Module of an Electric Vehicle." Applied Sciences 9, no. 4 (2019): 754. http://dx.doi.org/10.3390/app9040754.

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With the development of electric vehicles, much attention has been paid to the thermal management of batteries. The liquid cooling has been increasingly used instead of other cooling methods, such as air cooling and phase change material cooling. In this article, a lithium iron phosphate battery was used to design a standard module including two cooling plates. A single battery numerical model was first created and verified as the basis of the module heat transfer model. Orthogonal experimental design method was adopted in the module thermal model to optimize the main parameters in the module:

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Wang, Li Ping, Dong Rong Liu, and Er Jun Guo. "Modeling of Heat Transfer in Spent-Nuclear-Fuel Container during Forced-Chilling Process." Advanced Materials Research 291-294 (July 2011): 2342–51. http://dx.doi.org/10.4028/www.scientific.net/amr.291-294.2342.

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Application of spheroidal graphite cast iron in the production of spent-nuclear-fuel container contributes to improve the strength and toughness of the casting, because of the nodular shape of graphite. For a large-scale container, a forced-chilling technique is used to accelerate solidification process and raise spheroidization rate. In this paper, modeling of heat transfer in the container is performed. Influences of cooling media, inflow flux of coolant and thickness of sand layer upon the variations of cooling rate are systematically analyzed. Calculated results indicate that water as a co

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Li, Xianchang, and Ting Wang. "Simulation of Film Cooling Enhancement With Mist Injection." Journal of Heat Transfer 128, no. 6 (2005): 509–19. http://dx.doi.org/10.1115/1.2171695.

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Cooling of gas turbine hot-section components, such as combustor liners, combustor transition pieces, and turbine vanes (nozzles) and blades (buckets), is a critical task for improving the life and reliability of them. Conventional cooling techniques using air-film cooling, impingement jet cooling, and turbulators have significantly contributed to cooling enhancements in the past. However, the increased net benefits that can be continuously harnessed by using these conventional cooling techniques seem to be incremental and are about to approach their limit. Therefore, new cooling techniques ar

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FAISAL, M. E. DH ALDHAHI. "Car Cooling System." International Journal of Innovative Science and Research Technology 7, no. 11 (2022): 1279–83. https://doi.org/10.5281/zenodo.7450329.

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A vehicle's cooling system is responsible for maintaining an optimal operating temperature in the engine. System components include the radiator, water pump, thermostat, and ventilation fans. A coolant Recovering Tank is a reservoir that stores extra fluid in the event of an engine overheating. The coolant should be at the "cold" mark when the engine is cold. Adding an expansion tank to a standard radiator only requires a little increase in total coolant volume. High-quality radiator hoses need to be regularly inspected and maintained. Extreme heat causes the rubber in the hoses

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Madani, Seyed Saeed, Erik Schaltz, and Søren Knudsen Kær. "Design and Simulation of Internal Flowing Twisted Conduits for Cooling of Lithium-Ion Batteries through Thermal Characterization." Batteries 6, no. 2 (2020): 31. http://dx.doi.org/10.3390/batteries6020031.

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Lithium-ion batteries are extensively used for electric vehicles, owing to their great power and energy density. A battery thermal management system is essential for lithium-ion batteries. With the extensive utilization of liquid-cooling approaches for lithium-ion batteries’ thermal management, temperature homogeneity is considerably influenced by coolant distribution. A lower temperature of the cooling fluid brings about a lower temperature of the cell, but the relation and the amount are important to be analyzed. The cooling efficiency is considerably influenced by the flowing conduit arrang

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Bazdidi-Tehrani, F., and G. E. Andrews. "Full-Coverage Discrete Hole Film Cooling: Investigation of the Effect of Variable Density Ratio." Journal of Engineering for Gas Turbines and Power 116, no. 3 (1994): 587–96. http://dx.doi.org/10.1115/1.2906860.

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Experimental results of the overall and adiabatic cooling effectiveness for full-coverage discrete hole film cooling are presented for a range of practical geometries. The results are reported for various hot gas mainstream-to-coolant temperature (density) ratios, in the realistic range of 1.0–3.2. The variation of this ratio was achieved by increasing the crossflow mainstream temperature, over the range 300–930 K. For combustor wall film cooling applications, the overall cooling effectiveness increased significantly with the number of holes per unit wall surface area, over the range of 4306–2

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Song, Yufei, Zhiguo Liu, Shiwu Li, and Qingyong Jin. "Design and Optimization of an Immersion Liquid Cooling System in Internet Datacenter." International Journal of Heat and Technology 39, no. 6 (2021): 1923–29. http://dx.doi.org/10.18280/ijht.390629.

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With the development of high-performance chips, the heat flux of Internet datacenter (IDC) is on the rise, and heat dissipation becomes a major bottleneck of IDC development. The cooling needs of the IDC room can hardly be met by the traditional method of air cooling. In recent years, immersion liquid cooling has attracted a growing attention, due to its excellent performance. This paper designs and optimizes an immersion liquid cooling system for IDC. Multiple numerical simulations were carried out to analyze the influence of the system parameters on heat dissipation, and improve the system e

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Lutum, E., and B. V. Johnson. "Influence of the Hole Length-to-Diameter Ratio on Film Cooling With Cylindrical Holes." Journal of Turbomachinery 121, no. 2 (1999): 209–16. http://dx.doi.org/10.1115/1.2841303.

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Film cooling experiments were conducted to investigate the effects of coolant hole length-to-diameter ratio on the film cooling effectiveness. The results from these experiments offer an explanation for the differences between the film cooling results for cylindrical hole injection configurations previously reported by Goldstein et al. (1974), Pedersen et al. (1977), and Sinha et al. (1991). The previously reported injection configurations differed primarily in coolant hole length-to-diameter ratio. The present experiments were conducted with a row of cylindrical holes oriented at 35 deg to a

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van de Noort, Michael, and Peter T. Ireland. "Genetic Algorithm-Based Optimisation of a Double-Wall Effusion Cooling System for a High-Pressure Turbine Nozzle Guide Vane." International Journal of Turbomachinery, Propulsion and Power 9, no. 1 (2024): 6. http://dx.doi.org/10.3390/ijtpp9010006.

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Double-Wall Effusion Cooling schemes present an opportunity for aeroengine designers to achieve high overall cooling effectiveness and convective cooling efficiency in High-Pressure Turbine blades with reduced coolant usage compared to conventional cooling technologies. This is accomplished by combining impingement, pin-fin and effusion cooling. Optimising these cooling schemes is crucial to ensuring that cooling is achieved sufficiently at high-heat-flux regions and not overused at low-heat-flux ones. Due to the high number of design variables employed in these systems, optimisation through t

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