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Journal articles on the topic 'Temperature change of coolant'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Wang, Bo, Changzhi Jiao, and Shiheng Zhang. "Numerical Improvement of Battery Thermal Management Integrating Phase Change Materials with Fin-Enhanced Liquid Cooling." Energies 18, no. 9 (2025): 2406. https://doi.org/10.3390/en18092406.

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Under high-rate charging and discharging conditions, the coupling of phase change materials (PCMs) with liquid cooling proves to be an effective approach for controlling battery pack operating temperature and performance. To address the inherent low thermal conductivity of PCM and enhance heat transfer from PCM to cooling plates, numerical simulations were conducted to investigate the effects of installing fins between the upper and lower cooling plates on temperature distribution. The results demonstrated that merely adding cooling plates on battery surfaces and filling PCM in inter-cell gaps

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2

Sun, Jixian, Dan Dan, Mingshan Wei, Senlin Cai, Yihang Zhao, and Edward Wright. "Pack-Level Modeling and Thermal Analysis of a Battery Thermal Management System with Phase Change Materials and Liquid Cooling." Energies 16, no. 15 (2023): 5815. http://dx.doi.org/10.3390/en16155815.

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Electric vehicles are seen as the prevailing choice for eco-friendly transportation. In electric vehicles, the thermal management system of battery cells is of great significance, especially under high operating temperatures and continuous discharge conditions. To address this issue, a pack-level battery thermal management system with phase change materials and liquid cooling was discussed in this paper. A dynamic electro-thermal coupled model for cells, the enthalpy–porosity model for phase change materials, and the k-ε model for the coolant flow were used. Various parameters, such as ambient

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3

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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4

Yang, Tianqi, Shenglin Su, Qianqian Xin, et al. "Thermal Management of Lithium-Ion Batteries Based on Honeycomb-Structured Liquid Cooling and Phase Change Materials." Batteries 9, no. 6 (2023): 287. http://dx.doi.org/10.3390/batteries9060287.

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Batteries with high energy density are packed into compact groups to solve the range anxiety of new-energy vehicles, which brings greater workload and insecurity, risking thermal runaway in harsh conditions. To improve the battery thermal performance under high ambient temperature and discharge rate, a battery thermal management system (BTMS) based on honeycomb-structured liquid cooling and phase change materials (PCM) is innovatively proposed. In this paper, the thermal characteristics of INR18650/25P battery are studied theoretically and experimentally. Moreover, the influence of structure,

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Sutanto, Marili Santi, and Anggun Dwi Lestari. "Fuzzy Logic-Based Feedwater Controller for the Super Fast Reactor." Journal of Physics: Conference Series 2866, no. 1 (2024): 012033. http://dx.doi.org/10.1088/1742-6596/2866/1/012033.

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Abstract Super fast reactor is a Generation IV reactor with water coolant at supercritical pressure. It has advantages of having high efficiency of about 44%, more economical and excellent safety features. Its last core design which adopted one heating in one coolant cycle, however, results a large density change along the fuel channels. It leads to a sensitive steam temperature change against a change of power which might mismatch with the flow change. The sensitivity should be reduced to maintain the structure integrity of the reactor components. A feedwater controller which based on fuzzy l

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6

Ramdas, Dhiraj, and Tapobrata Dey. "Use of electronic viscous drive to optimize fan duty cycle." Engineering Research Express 4, no. 1 (2022): 015018. http://dx.doi.org/10.1088/2631-8695/ac5125.

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Abstract The Electronic Viscous Fan Drive Clutch is one of the key components of cooling system in automotive sectors. It is more efficient than the current traditional bimetal operated Mechanical Viscous Fan Drive Clutch in terms of fan power consumption. The comparative change in fan power with both fan drives is studied and it is observed that with electronic fan clutch 86% reduction in fan power is achieved. In the current study an attempt is made to demonstrate the improvement in the cooling system in terms of ambient temperature of air and the coolant temperature. This is achieved throug

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7

Bucharskyi, V. L., and O. M. Ponomarov. "TO DETERMINATION THE FLOW PARAMETERS AT THE OUTLET OF THE COOLING CURTAIN OF THE LIQUID-PROPELLANT ROCKET ENGINE COMBUSTION CHAMBER." System design and analysis of aerospace technique characteristics 36, no. 1 (2025): 27–37. https://doi.org/10.15421/472503.

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The design of liquid propellant rocket engines (LPREs) necessitates the efficient cooling of the combustion chamber walls. Despite the prevalence of regenerative cooling, it frequently proves inadequate, necessitating supplementary techniques such as the injection of coolant into the combustion chamber to establish a thermal barrier. A critical deficiency in the prevailing methodologies pertains to the absence of dependable methodologies for the calculation of the parameters governing coolant flow as it transitions from the cooling path to the curtain belt. The objective of this study is to de

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8

Zheng, Shuaishuai, Tingsong Yang, Tieheng Yuan, Wenquan Sun, Ankang Shen, and Shuo Fan. "Research on Temperature Change Law and Non-Uniform Distribution Characteristics of Electromagnetic Control Roll Based on Rotating Heat Flow." Machines 12, no. 10 (2024): 727. http://dx.doi.org/10.3390/machines12100727.

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The uniform temperature distribution on the surface of the electromagnetic control roll (ECR) has a great impact on the quality of the strip; therefore, temperature control is essential. In order to study this issue, a two-dimensional volume of fluid (VOF) model was established using the simulation software FLUENT (2024 R1) to analyze the radial cooling capacity and surface temperature uniformity of the ECR under different process parameters, and an experimental validation was carried out at the same time. The error between the experiment and the model was less than 5% of the maximum temperatu

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9

Kirana, Yogyandini Mega, Purwono Sutopo Fitri, and Makoto Shibahara. "Thermal Performance of Immersion Cooling On Li-Ion Battery with Paraffin Wax-based Phase Change Material (PCM) under Ship Rolling and Pitching Angles." IOP Conference Series: Earth and Environmental Science 1461, no. 1 (2025): 012041. https://doi.org/10.1088/1755-1315/1461/1/012041.

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Abstract Battery Thermal Management System (BTMS) onboard electric ships are crucial for optimising battery performance and longevity. By regulating the temperature, these systems ensure that batteries operate within safe limits, thus reducing the risk of thermal runaway. The present work aimed to determine the thermal performance of immersion cooling BTMS using paraffin wax-based PCM as a coolant on a LiFePo4 Li-Ion battery pack at discharging rates of 1C, 2C, and 3C. The immersion coolant rates were set to 30%, 50%, and 90%, and the inclination angles of the simulated ship’s pitching and rol

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10

Kruzel, Marcin, Tadeusz Bohdal, Krzysztof Dutkowski, and Mykola Radchenko. "The Effect of Microencapsulated PCM Slurry Coolant on the Efficiency of a Shell and Tube Heat Exchanger." Energies 15, no. 14 (2022): 5142. http://dx.doi.org/10.3390/en15145142.

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This paper describes the results of experimental studies on heat transfer in a shell and tube heat exchanger during the phase changes of the HFE 7000 refrigerant. The studies were performed using a mixture of water and a microencapsulated phase change material as a coolant. HFE 7000 refrigerant condenses on the external surface of the copper tube, while a mixture of water and phase change materials flows through the channels as coolant. Currently, there is a lack of research describing cooling using phase change materials in heat exchangers. There are a number of publications describing the he

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11

Ghedira, Aroua, Zied Lataoui, Adel M. Benselama, Yves Bertin, and Abdelmajid Jemni. "Simulation of Transpiration Cooling with Phase Change Process in Porous Media." Fluids 10, no. 2 (2025): 52. https://doi.org/10.3390/fluids10020052.

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Phase change modeling in porous media is among the important challenges in many essential engineering problems, including thermal management, energy conservation or recovery, and heat transfer. One particularly efficient method of dissipating heat in a porous material is transpiration cooling with phase change. It is one of the most innovative cooling methods available for removing excessive heat flux from engine components such as combustors or gas turbine blades. There is, however, a lack of in-depth understanding of the interconnected mechanisms involved in such an application. In this work

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12

Xin, Qianqian, Tianqi Yang, Hengyun Zhang, Juan Zeng, and Jinsheng Xiao. "Simulation and Optimization of Lithium-Ion Battery Thermal Management System Integrating Composite Phase Change Material, Flat Heat Pipe and Liquid Cooling." Batteries 9, no. 6 (2023): 334. http://dx.doi.org/10.3390/batteries9060334.

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A large-capacity prismatic lithium-ion battery thermal management system (BTMS) combining composite phase change material (CPCM), a flat heat pipe (FHP), and liquid cooling is proposed. The three conventional configurations analyzed in this study are the BTMSs using only CPCM, CPCM with aluminum thermal diffusion plates, and CPCM with FHPs. In addition, a CPCM–FHP assisted with liquid cooling at the lateral sides is established to enhance the thermal performance of large-capacity batteries. Moreover, the influences of coolant temperature, the number of FHPs and cooling pipes, and the coolant d

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13

Zuo, Jingying, Silong Zhang, Jiang Qin, Wen Bao, Cui Naigang, and Xiaoyong Liu. "Interaction mechanism between shock waves and supersonic film cooling with cracking reaction." Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 234, no. 3 (2019): 908–23. http://dx.doi.org/10.1177/0954410019892178.

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In order to understand the interaction mechanism between shock waves and supersonic film cooling with cracking reaction, supersonic film cooling using gaseous hydrocarbon fuel as coolant in terms of cracking reaction of the coolant, with and without shock waves interaction, is investigated numerically. Theoretically, cracking reaction may be accelerated by the shock wave interaction, which may enhance the mixing of the coolant and absorb heat, which will lead to contradictory effects on supersonic film cooling. However, it turns out that, with shock waves interaction, cracking reaction only ab

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14

Borysenko, V. I., and V. V. Goranchuk. "Model of Reactivity Accident of the RBMK-1000 of the Chornobyl NPP 4th Power Unit." Nuclear Power and the Environment 21, no. 2 (2021): 39–48. http://dx.doi.org/10.31717/2311-8253.21.2.4.

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The article presents the results of modeling of the reactivity accident, which resulted in the destruction of reactor RBMK-1000 of the 4th power unit of the Chornobyl NPP on April 26, 1986. The RBMK-1000 reactivity accident model was developed on the basis of the kinetics of the nuclear reactor, taking into account the change in the reactivity of the reactor. Reactivity changes as a result of both external influence (movement of control rods; change in the reactor inlet coolant temperature (density)) and due to the action of reactivity feedback by the parameters of the reactor core (change in

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15

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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16

Thakur, Satyam Singh, and Lalit Kumar. "Numerical study on hybrid battery thermal management system integrating water, phase change material, and fins, under New European Driving Cycle." Journal of Physics: Conference Series 2766, no. 1 (2024): 012221. http://dx.doi.org/10.1088/1742-6596/2766/1/012221.

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Abstract This study introduced a hybrid thermal management system for a 4×4 cylindrical lithium-ion battery module, simulating New European Driving Cycle (NEDC) conditions. The system integrated water, phase change material (PCM), and fins for enhanced heat dissipation. The batteries, attached to an aluminium shell, incorporated PCM and a central coolant path. Fins were introduced between the coolant channel and Al shell to enhance heat transfer between batteries, PCM, and water. Comparative analysis against passive (PCM only) and active (liquid) cooling systems revealed the hybrid system’s su

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17

Palappan, Rajendran, Avadaiappa Pasupathy, Lazarus Asirvatham, Tharayil Trijo, and Somchai Wongwises. "Heating and cooling capacity of phase change material coupled with screen mesh wick heat pipe for thermal energy storage applications." Thermal Science 24, no. 2 Part A (2020): 723–34. http://dx.doi.org/10.2298/tsci180207237p.

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The thermal performance of a phase change material (PCM) heat pipe system is experimentally analysed using acetone as heat pipe fluid in a heat load range of 10-50 W at different flow rates of the condenser coolant. The evaporator of the heat pipe is enclosed in a chamber which filled with a PCM or water. Heat inputs are applied at the evaporator of the heat pipe through the PCM or water. In this study, the heat retention as well as cooling time of the PCM-water are estimated at different heat loads and flow rates of condenser coolant. Similarly, the thermal resistance, evaporator and condense

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18

Kuzevanov, Vyacheslav S., and Sergey K. Podgorny. "Gas-cooled nuclear reactor core shaping using heat exchange intensifiers." Nuclear Energy and Technology 5, no. (1) (2019): 75–80. https://doi.org/10.3897/nucet.5.34294.

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The need to shape reactor cores in terms of coolant flow distributions arises due to the requirements for temperature fields in the core elements (Safety guide No. NS-G-1.12. 2005, IAEA nuclear energy series No. NP-T-2.9. 2014, Specific safety requirements No. SSR-2/1 (Rev.1) 2014). However, any reactor core shaping inevitably leads to an increase in the core pressure drop and power consumption to ensure the primary coolant circulation. This naturally makes it necessary to select a shaping principle (condition) and install heat exchange intensifiers to meet the safety requirements at the lowes

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19

KUDRYAVTSEV, S. V., A. S. TARAPANOV, and D. O. ZOLKIN. "DETERMINATION OF TEMPERATURE OF THE DEPLOYMENT PROCESS IN REAL TIME." Fundamental and Applied Problems of Engineering and Technology 2 (2020): 68–72. http://dx.doi.org/10.33979/2073-7408-2020-340-2-68-72.

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The article provides a comparative analysis of temperature measurement methods, hydraulic and thermodynamic calculations. An automated laboratory complex has been developed. It has been established that its operation makes it possible to obtain a temperature change in real time. The operation process of the automated complex, the characteristics of the pipeline material and the coolant at the operating temperature are described. Similar pipeline material and a high–temperature coolant that meets the parameters of the complex. A block diagram of the functional elements of the complex, graphs of

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20

Kuzevanov, Vyacheslav S., and Sergey K. Podgorny. "Gas-cooled nuclear reactor core shaping using heat exchange intensifiers." Nuclear Energy and Technology 5, no. 1 (2019): 75–80. http://dx.doi.org/10.3897/nucet.5.34294.

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The need to shape reactor cores in terms of coolant flow distributions arises due to the requirements for temperature fields in the core elements (Safety guide No. NS-G-1.12. 2005, IAEA nuclear energy series No. NP-T-2.9. 2014, Specific safety requirements No. SSR-2/1 (Rev.1) 2014). However, any reactor core shaping inevitably leads to an increase in the core pressure drop and power consumption to ensure the primary coolant circulation. This naturally makes it necessary to select a shaping principle (condition) and install heat exchange intensifiers to meet the safety requirements at the lowes

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21

Park, Jun Su, Dong-Jun Shin, Sung-Hwan Yim, and Sang-Hyun Kim. "Evaluate the Cooling Performance of Transmit/Receive Module Cooling System in Active Electronically Scanned Array Radar." Electronics 10, no. 9 (2021): 1044. http://dx.doi.org/10.3390/electronics10091044.

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The active electronically scanned array (AESA) radar consists of many transmit/receive (T/R) modules and is used to track missiles approaching destroyers and fighters. The performance of the AESA radar depends on the T/R module temperature. The T/R module temperature should be maintained under 80 °C to guarantee the performance of the AESA radar. In order to match the design requirements of the cooling system of the AESA radar, it is necessary to evaluate the cooling performance according to various operation/installation environments. In this study, computational fluid analysis was performed

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22

Balitskii, Alexander, Myroslav Kindrachuk, Dmytro Volchenko, et al. "Hydrogen Containing Nanofluids in the Spark Engine’s Cylinder Head Cooling System." Energies 15, no. 1 (2021): 59. http://dx.doi.org/10.3390/en15010059.

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The article is devoted to the following issues: boiling of fluid in the cooling jacket of the engine cylinder head; agents that influenced the thermal conductivity coefficient of nanofluids; behavior of nanoparticles and devices with nanoparticles in the engine’s cylinder head cooling system. The permissible temperature level of internal combustion engines is ensured by intensification of heat transfer in cooling systems due to the change of coolants with “light” and “heavy” nanoparticles. It was established that the introduction of “light” nanoparticles of aluminum oxide Al2O3 Al2O3 into the

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23

Qian, Zuoqin, Xinyu Wang, Jie Ren, Qiang Wang, and Lumei Zhao. "Experimental Study of a Bionic Porous Media Evaporative Radiator Inspired by Leaf Transpiration: Exploring Energy Change Processes." Processes 12, no. 12 (2024): 2745. https://doi.org/10.3390/pr12122745.

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The performance of photovoltaic (PV) cells is significantly influenced by their operating temperature. While conventional active cooling methods are limited by economic feasibility, passive cooling strategies often face challenges related to insufficient heat dissipation capacity. This study presents a bio-inspired evaporative heat sink, modeled on the transpiration and water transport mechanisms of plant leaves, which leverages porous media flow and heat transfer. The device uses capillary pressure, generated through the evaporation of the cooling medium under sunlight, to maintain continuous

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24

Aleksandrov, A. A., V. A. Akatev, M. P. Tyurin, E. S. Borodina, and O. I. Sedlyarov. "Analytical Study of Heat Transfer When Heating or Cooling a Limited Volume of Liquid." Herald of the Bauman Moscow State Technical University. Series Natural Sciences, no. 6 (99) (December 2021): 17–34. http://dx.doi.org/10.18698/1812-3368-2021-6-17-34.

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The paper shows the results of analytical studies of heat transfer when heating or cooling a limited volume of liquid. The purpose of the research was to determine the size of the heat transfer surface, with the initial parameters of the coolants, the final temperature in the reactor and its thermal equivalent, as well as the flow rate of the second coolant through the heat exchanger corresponding to the water equivalent at a given cooling time τo. Moreover, if intensive mixing is carried out in the vessel, i.e., if the temperature of the second heat carrier practically does not change along t

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25

Guo and Ye. "Numerical and Experimental Study on a High-Power Cold Achieving Process of a Coil-Plate Ice-Storage System." Energies 12, no. 21 (2019): 4085. http://dx.doi.org/10.3390/en12214085.

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Heat dissipation of high-power lasers needs a cold storage and supply system to provide sufficient cooling power. A compact coil-plate heat exchange device has been proposed and applied in the phase-change cold storage system with ice as the cold-storage medium and glycol aqueous solution as the coolant. The heat exchanger consists of several stacked coil-plate units and each unit is constructed with a flat plate and serpentine coils welded on the plate. A simulation model on the cold achieving process of a coil-plate unit was built and verified by the corresponding experiment. The influences

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26

ANASHKIN, I. P. "METHODOLOGY OF EXPERIMENTAL STUDY OF THE HEAT TRANSFER PROCESS USING REAL TIME SIMULATION MODELS." Herald of Technological University 27, no. 9 (2024): 99–103. http://dx.doi.org/10.55421/1998-7072_2024_27_9_99.

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The laboratory installation “Study of heat transfer in a pipe-in-pipe heat exchanger with a storage water heater” was supplemented with a digital component that meets the modern level of information technology. The laboratory bench was equipped with new digital temperature and flow sensors. Temperature sensors are installed at the inlet and outlet of coolants. An arduino uno controller is installed to collect data from sensors, perform primary processing and send information to the computer. To visualize sensors data, a program was written in the julia programming language. The program display

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27

Tuce, Robert-Angelo, Monica Neagu, Vasile Pupazan, Adrian Neagu, and Stelian Arjoca. "The 3D Printing and Evaluation of Surgical Guides with an Incorporated Irrigation Channel for Dental Implant Placement." Bioengineering 10, no. 10 (2023): 1168. http://dx.doi.org/10.3390/bioengineering10101168.

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Dental implant insertion requires the preparation of the implant bed via surgical drilling. During this stage, irrigation is essential to avoid thermal damage to the surrounding bone. Surgical guides enhance the accuracy of the implant site preparation, but they mask the drilling site, hampering coolant delivery. A variety of designs are aimed at improving the coolant access to the target site. Using standard dental implant simulation software, this paper presents an in-house design and 3D printing workflow for building surgical guides that incorporate a coolant channel directed toward the ent

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28

Jeon, Hyeonchang, Seokmoo Hong, Jinwon Yun, and Jaeyoung Han. "Cooling Strategy Optimization of Cylindrical Lithium-Ion Battery Pack via Multi-Counter Cooling Channels." Energies 16, no. 23 (2023): 7860. http://dx.doi.org/10.3390/en16237860.

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This study focused on the design of a battery pack cooling channel based on a Tesla Model S electric car. This study aimed to achieve a balance between cooling efficiency and pressure drop while maintaining safe and optimal operating temperatures for the batteries. A cooling channel design similar to the basic type employed in the Tesla Model S using 448 cylindrical Li-ion batteries was considered. Consequently, important parameters, such as the maximum temperature and temperature difference in the battery cells in a module, as well as the pressure drop of the coolant, were analyzed. In additi

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Keith, Matthew Duncan, Vamsi Krishna Kukkapalli, and Sunwoo Kim. "Phase Change Cooling of a Metal Hydride Reactor for Rapid Hydrogen Absorption." Energies 15, no. 7 (2022): 2490. http://dx.doi.org/10.3390/en15072490.

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As the world is keen on cleaner and sustainable energy, hydrogen energy has the potential to be part of the green energy transition to replace fossil fuels and mitigate climate change. However, hydrogen energy storage is a difficult task since physical storage in the form of compressed gas under high pressure is associated with safety issues. Another form of hydrogen storage is material-based storage, which is the safest way to store hydrogen energy in a particulate matter, known as metal hydrides. Metal hydrides can store hydrogen at room temperature and use less volume to store the same amou

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30

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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Sarkar, Jahar. "Improving thermal performance of micro-channel electronic heat sink using supercritical CO2 as coolant." Thermal Science 23, no. 1 (2019): 243–53. http://dx.doi.org/10.2298/tsci161110030s.

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In view of increasing tendency of power density of electronic systems, cooling performance improvement of micro-channel heat sink is an emerging issue. In the present article, supercritical CO2 is proposed as a heat transfer fluid in micro-channel heat sink for power electronics cooling. Energetic and exergetic performance analyses of micro-channel heat sink using supercritical CO2 have been done and compared with conventional coolant, water. To take care of sharp change in properties in near critical region, the discretization technique has been used for simulation. Effects of both operating

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LEE, Chang Hwa, Tae-Hyeong KIM, and Dalsung YOON. "Change of Thinking, Molten Salt Reactor (MSR)." Physics and High Technology 31, no. 6 (2022): 17–22. http://dx.doi.org/10.3938/phit.31.021.

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A loss of coolant in a nuclear power plant using solid nuclear fuel can cause a severe nuclear accident, surpassing a design-basis accident, and may include a meltdown and subsequent steam and hydrogen explosion leading to a major release of radioactive material to the environment. A molten salt reactor (MSR), one of the six concepts for a Generation-IV non-pressurized water reactor, utilizes liquid fuel in which the coolant and nuclear fuel are integrated. The integration of the fuel and coolant is fundamentally safe from severe accidents caused by a loss of coolant. Because an MSR operates a

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Zhao, Ning-bo, Xue-you Wen, and Shu-ying Li. "Dynamic Time-Delay Characteristics and Structural Optimization Design of Marine Gas Turbine Intercooler." Mathematical Problems in Engineering 2014 (2014): 1–14. http://dx.doi.org/10.1155/2014/701843.

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Aiming at the rapid mobility of marine gas turbine and the dynamic time-delay problem of intercooler for intercooled cycle marine gas turbine, the dynamic simulation model of intercooler was set up based on effectiveness-number of transfer units (ε-NTU) and lumped parameter method in this paper. The model comprehensively considers related physical properties dependent on temperature. Dynamic response characteristics of gas outlet temperature and pressure and coolant outlet temperature of intercooler with different materials and coolants in the change of operation condition of marine gas turbin

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Aleksey, Zagorulko, Zahorulko Andreii, Liashenko Bogdan, and Gordienko Iryna. "COMPARISON OF METHODS OF HEATING A ROTARY-FILM APPARATUS FOR THE PRODUCTION OF VEGETABLE CONCENTRATES." Technology audit and production reserves 6, no. 3 (50) (2019): 28–30. https://doi.org/10.15587/2312-8372.2019.186764.

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<em>The object of research is the temperature field of the working surface of the rotor-film apparatus (RFA) when heated by a nichrome spiral with a different coolant layer or using a flexible film resistive radiating type electric heater (FFREHRT). Since the concentration of vegetable purees using RFA is a promising solution, due to a significant reduction in processing time and high quality of the resulting products. Today, most RFAs use electric heating of nichromes with spirals with intermediate coolants, to process a uniform heat flow, which is determined empirically for the thickness of

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FORMALEV, Vladimir F., Sergey A. KOLESNIK, and Ekaterina L. KUZNETSOVA. "MATHEMATICAL MODELING OF A NEW METHOD OF THERMAL PROTECTION BASED ON THE INJECTION OF SPECIAL COOLANTS." Periódico Tchê Química 16, no. 32 (2019): 598–607. http://dx.doi.org/10.52571/ptq.v16.n32.2019.616_periodico32_pgs_598_607.pdf.

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A closed mathematical model of heat and mass transfer under the non-isothermal filtration through the organized pores of coolants with a strong dependence of dynamic viscosity on temperature with further injection into a viscous gas-dynamic flotation with the formation of liquid film and evaporation under the influence of aerodynamic heat flows has been developed. The aim of the paper is to develop the physical and mathematical basis of thermal protection with the automatic supply of coolant having a strong dependence of dynamic viscosity on temperature (by 3–5 orders of magnitude when the tem

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Shrinet, Ekta Singh, and Lalit Kumar. "Enhancing thermal management in cylindrical Li-ion battery through PCM integration with variable contact area." Journal of Physics: Conference Series 2766, no. 1 (2024): 012043. http://dx.doi.org/10.1088/1742-6596/2766/1/012043.

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Abstract Cylindrical Li-ion batteries are widely embraced in various sectors, notably electric vehicles and renewable energy storage systems. An effective thermal management system is vital for their safe and dependable operation, enhancing both the performance and reliability of the system. This study employs a distinctive hybrid cooling strategy consisting of a phase change material (PCM) at the centre of the battery and liquid cooling at the surface of the cylindrical batteries. The contact area between the coolant and the battery’s surfaces varies to make sure same heat transfers from each

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Li, Kun, Yuxiang Han, Zhixiong Han, Junlong Zhang, and Hao Zan. "Experimental study on influence of forced vibration of cooling channel on heat transfer instability at atmospheric and quasi-critical pressure." Thermal Science, no. 00 (2023): 94. http://dx.doi.org/10.2298/tsci220918094l.

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Hydrocarbon fuel is used as coolant to cool scramjet by flowing through cooling channels at atmospheric pressure and quasi-critical pressure conditions. The instability of the heat transfer will occur in this process. However, the effect of scramjet vibration on the heat transfer instability is unclear. In order to study the effect of cooling channel forced vibration on the unstable heat transfer performance at trans-crtical pressure, cooling channel heat transfer characteristics under different vibration condition are analyzed. Experimental results show that at atmospheric pressure, cooling c

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Melnikov, Vladimir, Vadim Ivanov, Ivan Teplyashin, and Mikhail Timonin. "Development and study of a microwave reflex-radar level gauge of the nuclear reactor coolant." Nuclear Energy and Technology 4, no. 3 (2018): 185–90. http://dx.doi.org/10.3897/nucet.4.31857.

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The article considers the design of a microwave reflex-radar level gauge of the nuclear reactor coolant. The main advantage of the reflex-radar measurement principle is that it does not affect the accuracy of measuring the level of bubbles present, coolant condensation and boiling, changes in its pressure as well as temperature and density. In addition, the measuring transmitter design is quite simple. In this level gauge, a microwave waveguide made as a coaxial line is used as a transducer (measuring probe). The probe consists of a steel pipe with an external diameter of 20 mm and a central e

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Melnikov, Vladimir I., Vadim V. Ivanov, Ivan A. Teplyashin, and Mikhail A. Timonin. "Development and study of a microwave reflex-radar level gauge of the nuclear reactor coolant." Nuclear Energy and Technology 4, no. (3) (2018): 185–90. https://doi.org/10.3897/nucet.4.31857.

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The article considers the design of a microwave reflex-radar level gauge of the nuclear reactor coolant. The main advantage of the reflex-radar measurement principle is that it does not affect the accuracy of measuring the level of bubbles present, coolant condensation and boiling, changes in its pressure as well as temperature and density. In addition, the measuring transmitter design is quite simple. In this level gauge, a microwave waveguide made as a coaxial line is used as a transducer (measuring probe). The probe consists of a steel pipe with an external diameter of 20 mm and a central e

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Jamil, Muhammad, Asif Iqbal, Ning He, and Quentin Cheok. "Thermophysical Properties and Heat Transfer Performance of Novel Dry-Ice-Based Sustainable Hybrid Lubri-Coolant." Sustainability 14, no. 4 (2022): 2430. http://dx.doi.org/10.3390/su14042430.

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It is a well-known fact that the consumption of conventional cutting fluids in metalworking industries leads to severe health and environmental issues. Owing to the EPA (Environmental Protection Agency) increasing regulations regarding pollution and contamination, there is a dire need for a greener fluid with excellent cooling and lubrication characteristics to diminish the environmental impact of cutting fluids, as well as to improve machinability. Cryogens are greener and excellent coolants but poor lubricants, while ester oils are excellent lubricants and poor coolants. Therefore, a hybrid

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Li, Quanyi, Jong-Rae Cho, and Jianguang Zhai. "Optimization of Thermal Management System with Water and Phase Change Material Cooling for Li-Ion Battery Pack." Energies 14, no. 17 (2021): 5312. http://dx.doi.org/10.3390/en14175312.

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The cooling structure of a battery pack and coupled liquid cooling and phase change material (PCM) were designed in a thermal management system to enhance the cooling performance and extend the service life of lithium-ion battery packs. Numerical simulations were conducted based on the finite volume method. This study focuses on factors such as the layout of the terminal, flow rate of the coolant, different sections of the cooling pipe, position of the cooling pipe, and coupled liquid cooling, and investigates their influences on the operating temperature. The results show that a reasonable te

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Wang, Dan, Yaxin Liu, Xiang Zhang, Mingliang Kong, and Hanchao Liu. "Numerical Investigation and Optimization of Transpiration Cooling Plate Structures with Combined Particle Diameter." Energies 18, no. 11 (2025): 2950. https://doi.org/10.3390/en18112950.

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Transpiration cooling is an efficient thermal protection technology used for scramjet combustors and other components. However, a conventional transpiration cooling plate structure with uniform porous media distribution suffers from a large temperature difference between the upstream and downstream surfaces and high coolant injection pressure (p). To enhance the overall cooling effect and reduce the maximum surface temperature and coolant injection pressure, the combined particle diameter plate structure (CPD−PS) is proposed. Numerical simulations show that compared with the single-particle di

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Nishat, Sadek Hossain, Farhana Islam Farha, and Md Hossain Sahadath. "Study of the Perturbation in Temperature Profile of an AGR Fuel Pin for Surface Roughness of Cladding by CFD Simulation in Ansys Fluent." Dhaka University Journal of Applied Science and Engineering 7, no. 1 (2023): 9–15. http://dx.doi.org/10.3329/dujase.v7i1.62881.

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The surface roughness of nuclear fuel cladding plays a crucial role in the thermal-hydraulic response of the Advanced Gas Cooled reactor (AGR). In the present work, the change in the temperature distribution from an isolated AGR fuel rod to primary coolant due to cladding roughness was studied by computational fluid dynamics (CFD) simulation in Ansys Fluent software. Square transverse ribs of the various pitch to height ratios _p / k_ were considered as the surface roughness. Radial temperature profiles from fuel to coolant were generated. Lower fuel temperature was found for the fuel rod with

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Nasibullayev, I. Sh. "Two-Dimensional numerical parametric modeling of the capillary microgripper cooling system with unsteady fluid flow." Multiphase Systems 17, no. 3-4 (2022): 153–66. http://dx.doi.org/10.21662/mfs2022.3.014.

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The paper presents a parametric analysis of a 2D model of a fluid cooling system for the hot side of a Peltier element of a capillary microgripper. An unsteady flow of coolant in the cooling chamber is considered. The cooling efficiency is studied for three chamber geometries with different radiator locations: monolithic, located on the Peltier element; with one or three ribs. Mathematical models are built: fluid flow through the microgripper chamber; heating the radiator with the hot side of the Peltier element; heat transfer from the radiator to fluid and the removal of the heated fluid from

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Wang, Yu, and Lin Ruan. "Self-Circulating Evaporative Cooling System of a Rotor and Its Experimental Verification." Processes 10, no. 5 (2022): 934. http://dx.doi.org/10.3390/pr10050934.

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With the development of hydropower, the heat problem of a rotor cannot be ignored. This paper presents a topology of an evaporative cooling system for rotors. The system seals the pole coil in a tank and immerses the coil in the insulating coolant with a suitable boiling point. The latent heat of vaporization during the boiling of coolant is used to control the temperature rise of the pole coil. After explaining the circulation principle of the system, the effectiveness of the cooling system is verified by experiments. A small-scale experimental platform has been set up to test the effectivene

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Suharso, Didik Dwi, Imam Syafi'i, and Anicitus Agung Nugroho. "Valve Setting Using Fuzzy Logic Method To Control Main Engine Coolant Flow." IJEEIT : International Journal of Electrical Engineering and Information Technology 6, no. 2 (2023): 83–94. http://dx.doi.org/10.29138/ijeeit.v6i2.2533.

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The main objective of this research is to improve the operating efficiency and performance of ship main engines by optimizing coolant flow. Improper coolant flow can cause excessive temperature rise in the engine, which in turn can reduce engine life and efficiency. In this research, the coolant flow control system is implemented using the fuzzy logic method. Fuzzy logic allows modeling that is more adaptive to parameter variations and uncertainties in the operational environment. Fuzzy rules are developed based on practical knowledge of experts and operational data related to the host machine

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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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Pravosud, S. S., D. S. Maslakov, Ya O. Yakubov, and A. A. Ovcherenko. "Verification of the WWER-1200 reactor dynamic model consisting of one-fuel unit adjacent to two coolant units." Global Nuclear Safety 48, no. 3 (2023): 82–95. http://dx.doi.org/10.26583/gns-2023-03-08.

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As modern control systems engineering imposes limits on mathematical models of control objects, further development, and verification of the mathematical models suitable for power control system synthesis of nuclear power facilities is an ongoing problem. This article deals with the low-order dynamics model with lumped parameters of the Russian-designed pressurized water reactor, as well as its verification with experimental data from the full-size simulator of the WWER – 1200 nuclear reactor within two tests related to changing the position of Group 12 of CPS CR and changing the inlet coolant

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Pei, Haiyue, Yihan Lu, Limin Qi, Dongli Liu, Ding Zhao, and Min Qiu. "Low-temperature photoluminescence measurement with a micromachined Joule-Thomson cooler." IOP Conference Series: Materials Science and Engineering 1301, no. 1 (2024): 012150. http://dx.doi.org/10.1088/1757-899x/1301/1/012150.

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Abstract This study evaluates the effectiveness of micromachined Joule-Thomson (MJT) cooling for photoluminescence (PL) materials. Achieving low temperatures is crucial for enhancing PL performance in semiconductors. However, the commonly used liquid nitrogen (LN2) cryostats require frequent refills, hindering their long-term operation. The MJT cooler offers a potential solution by enabling integration with devices and longer operating time. To validate its effectiveness, this study conducted low-temperature PL measurements using a nitrogen MJT cooler. A MAPbI3 thin film was used as the charac

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Kovetskaya, M. M. "EFFECT OF WATER TEMPERATURE AT INLET TO THE STEAM GENERATING CHANNEL ON STABILITY OF THE TWO-PHASE FLOW." Thermophysics and Thermal Power Engineering 41, no. 2 (2019): 27–34. http://dx.doi.org/10.31472/ttpe.2.2019.4.

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The paper considers the influence of the coolant temperature on stability of the flow in the closed loop of thermal-hydraulic test bench in the natural circulation mode. The loop includes a lifting section with a heated and unheated zone, condenser and lowering section where the single-phase coolant flows. The regime is considered, when the heat flow on the wall of the heated channel remains constant and the temperature of the coolant inlet increases. The effect of underheating at entrance to heated channel on the stability of the natural circulation of the coolant is considered. A one d

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