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Journal articles on the topic 'Vacuum cooling system'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Zuo, Z. J., Si Bi, L. R. Fu, Z. Q. Weng, and S. H. Peng. "Cooling System Design of Ion Nitriding and PCVD Composite Treatment Furnace." Applied Mechanics and Materials 448-453 (October 2013): 3462–66. http://dx.doi.org/10.4028/www.scientific.net/amm.448-453.3462.

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Keywords: ion nitriding furnace cooling system vacuum system Abstract. About fuction of vacuum plasma nitriding furnace cooling system, and its design and calculation of main parts, in particular control of water consumption. The cooling water system have been set into the water flowing through the four heat shield, and gradually take the heat, then the coolant out by outlet pipe. Cooling water flows through layers of insulation to varying degrees of cooling, to ensure that each level of temperature, precise calculation of water flow can only be guaranteed to ensure the maximum water savings a

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2

Wang, Lijun, and Da-Wen Sun. "Modelling vacuum cooling process of cooked meat—part 1: analysis of vacuum cooling system." International Journal of Refrigeration 25, no. 7 (2002): 854–61. http://dx.doi.org/10.1016/s0140-7007(01)00094-9.

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3

Lastriyanto, A., SA Wibowo, B. Susilo, et al. "Optimization of quality characteristics of acacia honey in Indonesia through different method system." African Journal of Food, Agriculture, Nutrition and Development 25, no. 2 (2025): 25884–903. https://doi.org/10.18697/ajfand.139.24960.

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This study investigated the potential effects of implementing a water-jet vacuum cooling system on the quality attributes of honey throughout the postharvest handling stages. This study revealed that packaging honey while still hot poses a significant risk of compromising package integrity, thereby highlighting the importance of proper cooling protocols. Integral to the investigation were multiple quality parameters utilized to assess the impact of the water-jet vacuum cooling system on honey. These parameters encompassed essential aspects such as water volume, viscosity, pH, acidity, density,

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4

Wibowo, SA, A. Lastriyanto, SH Sumarlan, et al. "Water jet vacuum cooling system for improving the quality of multiflora honey from bee (Apis dorsata Fabricus) in Indonesia." African Journal of Food, Agriculture, Nutrition and Development 24, no. 04 (2024): 26038–53. http://dx.doi.org/10.18697/ajfand.129.24130.

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Honey has great benefits to humans, both as medicine and food. It contains glucose, fructose and water in addition to small quantities of proteins, minerals, organic acids, and vitamins. Vacuum cooling is a rapid cooling technique based on the principle of evaporation, which lowers the boiling point of water based on the vacuum pressure inside a cooler room. A prototype vacuum-cooling jet water system was used to process the honey. Raw honey obtained from the forests of Riau was used in the present study. This study aimed to determine the effect of jet water vacuum cooling with variations in v

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Zhao, Huizhong, Haibin Liang, Wenzhe Sun, Guoqing Yu, Dan Cao, and Jun Ji. "Experimental Study on Solar Cooling Tube Using Thermal/Vacuum Emptying Method." Advances in Materials Science and Engineering 2012 (2012): 1–6. http://dx.doi.org/10.1155/2012/808210.

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A solar cooling tube using thermal/vacuum emptying method was experimentally studied in this paper. The coefficient of performance (COP) of the solar cooling tube was mostly affected by the vacuum degree of the system. In past research, the thermal vacuum method, using an electric oven and iodine-tungsten lamp to heat up the adsorbent bed and H2O vapor to expel the air from the solar cooling tube, was used to manufacture solar cooling tubes. This paper presents a novel thermal vacuum combined with vacuum pump method allowing an increased vacuum state for producing solar cooling tubes. The foll

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Wang, Sheng Long, Wen Hao Li, and Yin Hai Ge. "Optimal Vacuum Calculation and Analysis of Composite-Cycle Air-Cooling System." Advanced Materials Research 718-720 (July 2013): 1687–90. http://dx.doi.org/10.4028/www.scientific.net/amr.718-720.1687.

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In this paper, the research object is composite-cycle air-cooling system. First,gave a brief introduction of the system structure and the working principle in power plant. Then the optimal vacuum calculation model was established with the analysis of performance indicators and the amount of equipment production, consumption power of system. Analyze the impact of the ambient temperature to system optimal vacuum in variable conditions. Lastly, combining the climatic conditions of example, which can be drawn is that when the annual best vacuum is 4.8kPa, the running annual earnings is the highest

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7

Chaban, E. E., P. H. Citrin, and F. Sette. "A simple ultrahigh vacuum compatible sample cooling system." Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films 6, no. 5 (1988): 3018–19. http://dx.doi.org/10.1116/1.575472.

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8

Vezirov, Kh N. "A cooling system for a vacuum photoemissive device." Instruments and Experimental Techniques 43, no. 3 (2000): 413–14. http://dx.doi.org/10.1007/bf02759048.

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9

A. M. Saleh, Ahmed, Qussai J. Abdul Ghafour, and Luay T. Al-Rawi. "Experimental and Theoretical Study of Vacuum Cooling System." Engineering and Technology Journal 31, no. 14 (2013): 2619–31. http://dx.doi.org/10.30684/etj.31.14a.3.

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10

Куц, В. В., А. Н. Гречухин, Д. А. Павлов, and И. А. Чернышев. "RESEARCH OF THE PARAMETERS OF THE COOLING SYSTEM OF THE TABLE OF A DEVICE FOR ADDITIVE SHAPING BY A PLASMA ARC IN A DYNAMIC VACUUM ENVIRONMENT." ВЕСТНИК ВОРОНЕЖСКОГО ГОСУДАРСТВЕННОГО ТЕХНИЧЕСКОГО УНИВЕРСИТЕТА 19, no. 4 (2023): 123–30. http://dx.doi.org/10.36622/vstu.2023.19.4.016.

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рассмотрены вопросы проектирования системы охлаждения рабочего стола устройства для аддитивного формообразования изделий плазменной дугой в среде динамического вакуума. Обозначены условия работоспособности системы охлаждения по температуре теплоносителя, температуре рабочего стола и объему теплоносителя в системе охлаждения. Построены математические зависимости температуры теплоносителя и температуры рабочего стола устройства от конструктивных параметров системы охлаждения рабочего стола устройства для аддитивного формообразования плазменной дугой. Проведена серия экспериментов методом компьют

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11

Wang, Qi Bing, Zhi Ming Wang, and An Hua Peng. "Optimization Design of Cooling System of Vacuum Calibrator for Plastics Profile Extrusion." Advanced Materials Research 168-170 (December 2010): 959–62. http://dx.doi.org/10.4028/www.scientific.net/amr.168-170.959.

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Plastic profile produced by extrusion die should be cooled down and calibrated by calibrator ,so the proper design of the cooling system in calibrator was very important to the profile quality .The cooling channels in calibrator were preliminarily designed according to target function, and peculiar heterotype optimum designs of the local cooling channels were carried out by means of numerical simulation , the cooling effect was improved obviously ,Based on enterprise resource planning ERP system and parallel project computer aided design/computer aided Engineering CAD/CAE intellectualized data

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12

Zhao, Hui Zhong, Xiao Cui Sun, Hai Bin Liang, and Kun Yan. "Adsorption Performance of Compound Adsorbent Using the Thermal Vacuum Method." Advanced Materials Research 219-220 (March 2011): 865–69. http://dx.doi.org/10.4028/www.scientific.net/amr.219-220.865.

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The thermal vacuum method was used to test the adsorption performance of compound adsorbent. This thermal vacuum method, without vacuum pump, can expel the air of system up to its partial pressure, lower than 2 Pa. the adsorption performance of 13X zeolite and some compound adsorbent were tested by this way. Conclusions can be drawn as following: the adsorption capacity of 13X measured by this way has the less difference (<10%) with the reference. In this experimental system, the compound adsorbent, which has better adsorption performance and mould performance, was used in a solar cooling t

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13

Sharapov, S., M. Starchenko, M. Protsenko, V. Panchenko, and V. Kovtun. "Improvement of the Vacuum Cooling System for Biodiesel Production." Journal of Engineering Sciences 6, no. 1 (2019): f6—f11. http://dx.doi.org/10.21272/jes.2019.6(1).f2.

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14

Carbajo, Juan J., Graydon L. Yoder, and Seokho H. Kim. "Thermal Design of the ITER Vacuum Vessel Cooling System." Fusion Science and Technology 60, no. 1 (2011): 150–55. http://dx.doi.org/10.13182/fst11-a12343.

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15

Wang, L. J., and D. W. Sun. "OPTIMISATION OF OPERATING CONDITIONS OF A VACUUM COOLING SYSTEM FOR COOLING COOKED MEATS." Acta Horticulturae, no. 566 (December 2001): 407–13. http://dx.doi.org/10.17660/actahortic.2001.566.52.

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16

Lu, Changzheng, Changhua Liu, Meng Shao, et al. "Design and Performance Analysis of the Highly Sensitive Deep Vacuum Cooling sCMOS Imaging System for Highly Sensitive Detection of Space Targets." Photonics 10, no. 7 (2023): 819. http://dx.doi.org/10.3390/photonics10070819.

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The sCMOS imaging system with deep vacuum cooling technology has become a necessary way to improve the detection capability of space targets. In order to improve the detection capability of the photoelectric detection equipment for space targets, this paper developed the Highly Sensitive Deep Vacuum Cooling Imaging System (HSDVCIS). Firstly, we designed the imaging readout processing circuit using the GSENSE4040 sCMOS image sensor designed and manufactured by Gpixel and the deep vacuum cooling structure using thermoelectric cooling. Then, we tested the designed HSDVCIS with readout noise, dark

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17

Norboyev, Khabibulloh, Khazratov Abbos, Farrukh Mukhtarov, and Nizomjon Usmonov. "Development of a mathematical model of a recycling cooling system of a thermal power plant." E3S Web of Conferences 434 (2023): 01030. http://dx.doi.org/10.1051/e3sconf/202343401030.

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In thermal power plants in Uzbekistan, the drainless recycling cooling system is widespread, in which water of the most favorable and constant quality and heated in the condenser turbines are used in the water treatment plant thermal power plant. Since the recycling cooling system uses technical raw water, low solubility deposits (scale) are formed on heat exchange surfaces in turbine capacitors. It is believed that the cause of precipitation is the concentration of low soluble water components by evaporation of water in cooling towers. Due to the low thermal conductivity of the deposits forme

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18

Trisupakitti, Somsuk, Jindaporn Jamradloedluk, and Songchai Wiriyaumpaiwong. "Adsorption Cooling System Using Metal-Impregnated Zeolite-4A." Advances in Materials Science and Engineering 2016 (2016): 1–8. http://dx.doi.org/10.1155/2016/4283271.

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The adsorption cooling systems have been developed to replace vapor compression due to their benefits of being environmentally friendly and energy saving. We prepared zeolite-4A and experimental cooling performance test of zeolite-water adsorption system. The adsorption cooling test-rig includes adsorber, evaporator, and condenser which perform in vacuum atmosphere. The maximum and minimum water adsorption capacity of different zeolites and COP were used to assess the performance of the adsorption cooling system. We found that loading zeolite-4A with higher levels of silver and copper increase

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19

Suljkanovic, Midhat, Milovan Jotanovic, Elvis Ahmetovic, and Nidret Ibric. "Multivariant simulator for vacuum cooling processes of three component electrolyte systems." Chemical Industry 64, no. 1 (2010): 21–33. http://dx.doi.org/10.2298/hemind1001021s.

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In this paper, a computer aided analysis and synthesis of the crystallization processes from multicomponent electrolyte systems were studied. In addition, the vacuum crystallization processes with adiabatic cooling of the system are presented. The cooling process of a multicomponent electrolyte system can be considered as a process with the concentration of the system and/or the crystallization of the solid phase from the system. Requirements for multivariant options of the process simulator are the result of practical needs in the design of new processes or the improvement of exploitation pro

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20

Fu, Hao, Rui Zhao, Wenjun Long, and Wenlong Cheng. "Study on cooling performance of rapid cooling system based on vacuum spray flash evaporation." Applied Thermal Engineering 201 (January 2022): 117751. http://dx.doi.org/10.1016/j.applthermaleng.2021.117751.

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21

Danish, Syed, Abdelrahman El-Leathy, Mohanad Alata, and Hany Al-Ansary. "Enhancing Solar Still Performance Using Vacuum Pump and Geothermal Energy." Energies 12, no. 3 (2019): 539. http://dx.doi.org/10.3390/en12030539.

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Improvement in the performance of a solar still is investigated with the integration of a geothermal cooling system and a vacuum pump. Geothermal cooling is simulated to provide a cold, effective underground water temperature, which could reach 15–25 °C below ambient. Cooling is achieved by circulating water underground. As a result of this circulation, the cold fluid from the ground flows into a counter flow shell and tube heat exchanger. A vacuum pump is used to keep the solar still at a certain vacuum pressure. The sizes of the geothermal system and solar still are designed in such a way th

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22

Belley, Richard A. "Silencer for a cooling fan of a vacuum cleaning system." Journal of the Acoustical Society of America 85, no. 3 (1989): 1391. http://dx.doi.org/10.1121/1.397400.

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23

Stoenescu, S., T. Feng, and J. Swanson. "Compact Ignition Tokamak, Vacuum Vessel Heating/Cooling Preliminary System Designa." Fusion Technology 19, no. 3P2A (1991): 1127–32. http://dx.doi.org/10.13182/fst91-a29494.

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24

SUGAWARA, Akira, Satoru NAKAMIKAWA, Masaya KAGEYAMA, et al. "Research for Air Cooling System Using Vacuum-Cooled Water Refrigerant." Journal of Environment and Engineering 3, no. 1 (2008): 135–45. http://dx.doi.org/10.1299/jee.3.135.

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25

Thiangchanta, Surasit, Tuan Anh Do, Watcharapong Tachajapong, and Yuttana Mona. "Experimental investigation of the thermoelectric cooling with vacuum wall system." Energy Reports 6 (December 2020): 1244–48. http://dx.doi.org/10.1016/j.egyr.2020.11.048.

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26

Buana, I., and E. A. Kosasih. "Thermodynamic Simulation of Cascade Cooling System for Vacuum Freeze Drying." Journal of Physics: Conference Series 2739, no. 1 (2024): 012011. http://dx.doi.org/10.1088/1742-6596/2739/1/012011.

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Abstract Vacuum freeze drying (VFD) is a drying method carried out at pressures and temperatures below the triple point of water. Drying occurs by sublimation. The results of the VFD method are able to maintain the quality of dry ingredients (taste, colour, nutrient, etc.). To achieve a condition below the triple point of water, it is conditioned so that the pressure is under a partial pressure of 6.11657 mbar at a temperature of 0.01°C. The refrigeration system is simulated using refrigerants R-134a and R-22. The purpose of the simulation is to obtain the optimum system conditions. The variab

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27

Bespalko, Sergii, Oleksii Halychyi, Sviatoslav Poliakov, Valentyn Tkachenko, and Taisiia Naumenko. "Experimental Testing of the Water Distillation System with Regard to Heat and Cooling Generation by Means of Reversible Thermochemical Reactions." E3S Web of Conferences 194 (2020): 01026. http://dx.doi.org/10.1051/e3sconf/202019401026.

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The paper presents the results of an experimental study on the exothermal heat and endothermal cooling generation under vacuum conditions using a water distillation system of special design. The heat and cooling are generated when KOH and NH4NO3 crystals are dissolved as a result of natural mixing in the water, distilled from NH4NO3 and KOH liquid solutions, respectively. The time evolutions of the temperatures measured in KOH→H2O→NH4NO3 and NH4NO3→H2O→KOH experiments are presented and discussed. It has been shown that under vacuum conditions, the endothermal effect of NH4NO3 dissolution in wa

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28

Gagliano, Antonio, Francesco Patania, Francesco Nocera, and Aldo Galesi. "Performance assessment of a solar assisted desiccant cooling system." Thermal Science 18, no. 2 (2014): 563–76. http://dx.doi.org/10.2298/tsci120526067g.

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The use of solar energy to drive cooling applications, such as air conditioning is attractive since the cooling load has a high coincidence with the availability of solar irradiation. Combination of solar thermal and cooling has a high potential to reduce the electricity consumption of conventional air conditioning. This work delivers a description of solar desiccant solid system (DECs) and presents results of tests and performance analysis. The overall cooling efficiency is evaluated using simulation data typical of Mediterranean Region. In this context the autonomous operations both of a sol

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29

Завацкая, А. В., та Ю. А. Резунков. "Метод теплового баланса для расчета режимов охлаждения крупногабаритной оптики в вакуумных условиях". Журнал технической физики 93, № 5 (2023): 607. http://dx.doi.org/10.21883/jtf.2023.05.55454.253-22.

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The heat balance method is developed to optimize cooling modes of large-sized optics in a special cryogenic-vacuum system by considering a complicated heat transfer in the system to minimize the optics thermal deformations.

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30

Zhang, Ying-Li, Xiang-Ji Yue, Jia-Nan Ding, and De-Chun Ba. "Study the Effect of Operating Temperature on Performance in Dry Scroll Vacuum Pump." Applied Sciences 13, no. 16 (2023): 9378. http://dx.doi.org/10.3390/app13169378.

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The dry scroll vacuum pump is a kind of variable capacity dry vacuum pump that is applied in chemical, pharmaceutical, semiconductor, and scientific instruments. Analyzing the thermodynamic characteristics of the scroll vacuum pump and studying the impact of operating temperature on its consistent performance are necessary for the design and application of the cooling system of the scroll vacuum pump. Based on the dynamics mesh method, the computational fluid dynamics (CFD) simulation model of a multi-stage dry scroll vacuum pump is established in this study. Under the suction pressure of 1000

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31

Victoria, Tarasova, Kuznetsov Mikhail, Kharlampidi Dionis, and Kostikov Andrey. "DEVELOPMENT OF A VACUUM-EVAPORATIVE THERMOTRANSFORMER FOR THE COOLING SYSTEM AT A NUCLEAR POWER PLANT." Eastern-European Journal of Enterprise Technologies 4, no. 8 (100) (2019): 45–56. https://doi.org/10.15587/1729-4061.2019.175679.

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The study addresses the development of a method for the optimal design of vacuum-evaporative heat pump plants (HPP) for a cooling system of technological equipment of the second circuit at a nuclear power plant (NPP) using modern methods of thermodynamic analysis and thermoeconomic optimization. We have proposed two circuits for inclusion of a vacuum-evaporative HPP into a cooling system of the second circuit at NPP. The first circuit implies the use of HPP in combination with an existing cooling tower. It makes it possible to cool water additionally from 30 °C to 25 °C after

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32

Hassan, Ashraf, Raya Al-Dadah, Saad Mahmoud, Hassan Fath, Eman Hussien, and Nourhan Genidi. "Integration of vacuum multi effect membrane distillation with adsorption/cooling system." Applied Thermal Engineering 178 (September 2020): 115546. http://dx.doi.org/10.1016/j.applthermaleng.2020.115546.

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33

Yao, Jing Hong. "A Kind of Energy Saving Method Based on Improving Turbine Condenser Vacuum." Advanced Materials Research 347-353 (October 2011): 3116–19. http://dx.doi.org/10.4028/www.scientific.net/amr.347-353.3116.

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Vacuum is an important economic indicator of influencing turbine load and thermal efficiency. And heat transfer efficiency affects the level of vacuum directly. From the point of heat transfer analysis, combining with the production practice in a power plant, this paper proposes a method of improving heat transfer effectiveness and the condenser exchanging condition. Through the method of reducing the heat load of condenser, improving the tightness of the vacuum system, cleaning the heat surface and reducing the cooling water temperature, we improve the vacuum and reach the aim of energy savin

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34

Kosasih, E. A., R. I. Wahid, and A. A. Faros. "Aquadest production system as steam turbine bottom cycle II: influence of condenser pressure and pinch point temperature difference." E3S Web of Conferences 67 (2018): 04029. http://dx.doi.org/10.1051/e3sconf/20186704029.

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Most of the energy derived from Steam turbine is discharge in the condenser at temperatures that may damage the environment. The condenser cooling water has gone through water treatment process, so it would be better used as raw material to produce aquadest. This study simulate a system that produces aquadest by throttling 10% of cooling water that coming out the condenser into a vacuum chamber (3 kPa). The resulting cold vapoor is condensed in the evaporator become aquadest. Cold water coming out the vacuum chamber is mixed with water coming out the condenser is lower than before. Parameters

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35

Oda, Yohei, Morihiro Hideta, Hiroto Kojima, and Makoto Fujishima. "D29 The effect of dust vacuum and cooling by a chip vacuum system on CFRJP machining." Proceedings of The Manufacturing & Machine Tool Conference 2012.9 (2012): 241–42. http://dx.doi.org/10.1299/jsmemmt.2012.9.241.

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36

Nitsas, M. T., E. G. Papoutsis, and I. P. Koronaki. "Experimental Performance Evaluation of an Integrated Solar-Driven Adsorption System in Terms of Thermal Storage and Cooling Capacity." Energies 13, no. 22 (2020): 5931. http://dx.doi.org/10.3390/en13225931.

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Heat-driven coolers provide a reliable and environmentally benign alternative to traditional electrically powered chillers. Their main advantage is that they can be driven using low enthalpy heat sources. A solar system is installed at the school of Mechanical Engineering of National Technical University of Athens in order to examine the potential of thermal storage and solar cooling under Athens climatic conditions. The cooling effect is produced using a dual bed, single stage, zeolite/water adsorption chiller with cooling capacity of 10 kW at its nominal conditions of operation. Both vacuum

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37

A.V. Zavatskaya and Y.A. Rezunkov. "Heat balance method of computing the cooling modes of large-sized optics in vacuum." Technical Physics 68, no. 5 (2023): 566. http://dx.doi.org/10.21883/tp.2023.05.56061.253-22.

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The heat balance method is developed to optimize cooling modes of large-sized optics in a special cryogenic-vacuum system by considering a complicated heat transfer in the system to minimize the optics thermal deformations. Keywords: radiative heat transfer, conductive heat transfer, heat balance, thermostat, collimator.

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38

YIN, ZHANG-QI, ANDREW A. GERACI, and TONGCANG LI. "OPTOMECHANICS OF LEVITATED DIELECTRIC PARTICLES." International Journal of Modern Physics B 27, no. 26 (2013): 1330018. http://dx.doi.org/10.1142/s0217979213300181.

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We review recent works on optomechanics of optically trapped microspheres and nanoparticles in vacuum, which provide an ideal system for studying macroscopic quantum mechanics and ultrasensitive force detection. An optically trapped particle in vacuum has an ultrahigh mechanical quality factor as it is well-isolated from the thermal environment. Its oscillation frequency can be tuned in real time by changing the power of the trapping laser. Furthermore, an optically trapped particle in vacuum may rotate freely, a unique property that does not exist in clamped mechanical oscillators. In this re

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39

Wang, Zepeng, Zhongxian Yuan, Chunxu Du, Yimo Liu, and Jie Wang. "Performance of solar adsorption cooling system with internal finned vacuum tube bed." Case Studies in Thermal Engineering 34 (June 2022): 102063. http://dx.doi.org/10.1016/j.csite.2022.102063.

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40

Pashkoff, A. Yu, Yu S. Shpanskiy, and V. S. Petrov. "ASSESSMENT OF THERMAL-HYDRAULIC PARAMETERS VACUUM CHAMBER COOLING SYSTEM OF FNS INSTALLATIOSIONS." Problems of Atomic Science and Technology, Ser. Thermonuclear Fusion 42, no. 3 (2019): 25–36. http://dx.doi.org/10.21517/0202-3822-2019-42-3-25-36.

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41

Churusov, B. K., A. N. Kamenev, O. A. Utas, A. A. Saranin, A. V. Zotov, and V. G. Kotlyar. "A cooling system for samples for studying their surfaces in ultrahigh vacuum." Instruments and Experimental Techniques 49, no. 1 (2006): 141–43. http://dx.doi.org/10.1134/s0020441206010210.

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42

Ozturk, Hande Mutlu, and Arif Hepbasli. "Experimental performance assessment of a vacuum cooling system through exergy analysis method." Journal of Cleaner Production 161 (September 2017): 781–91. http://dx.doi.org/10.1016/j.jclepro.2017.05.118.

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43

Pukhovoy, M., K. Zolotarev, V. Vinokurov, et al. "PHYSICAL AND MATHEMATICAL MODELING OF UNSTEADY COUPLED HEAT AND MASS TRANSFER IN CVD-DIAMOND WINDOWS OF THE SIBERIAN CIRCULAR PHOTON SOURCE." Eurasian Journal of Mathematical and Computer Applications 12, no. 2 (2024): 92–106. http://dx.doi.org/10.32523/2306-6172-2024-12-2-92-106.

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The results of physical and mathematical modelling in the ANSYS software package of three-dimensional unsteady coupled heat and mass transfer in the previously developed diamond vacuum window (DVW) of the workstation of the Siberian Circular Photon Source under construction are presented. Previous simulations have convincingly shown: the possibility of using a mini-channel cooling system to implement reliable and proper temperature management of this optical device, the advantage of a mini-channel cooling system over a one channel system in terms of fulfilling the optical requirements for DVW

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44

Seo, Sae Rom, and Seungwoo Han. "Characteristic Evaluation on Cooling Performance of Thermoelectric Modules." Journal of Nanoscience and Nanotechnology 15, no. 10 (2015): 7602–5. http://dx.doi.org/10.1166/jnn.2015.11150.

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The aim of this work is to develop a performance evaluation system for thermoelectric cooling modules. We describe the design of such a system, composed of a vacuum chamber with a heat sink along with a metal block to measure the absorbed heat Qc. The system has a simpler structure than existing water-cooled or air-cooled systems. The temperature difference between the cold and hot sides of the thermoelectric module ΔT can be accurately measured without any effects due to convection, and the temperature equilibrium time is minimized compared to a water-cooled system. The evaluation system desc

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Chen, Biyang, Zhiguo Peng, Tengfei Tang, Gao Yue, and Weijia Zhang. "Research and improvement of SPS spark plasma sintering equipment." Journal of Physics: Conference Series 2483, no. 1 (2023): 012039. http://dx.doi.org/10.1088/1742-6596/2483/1/012039.

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Abstract Through the functional disassembly study of the pressurization system, vacuum and atmosphere control system, water cooling system and control system of the SPS spark plasma equipment, the problems in the actual production process and the corresponding improvements of the spark plasma sintering (SPS) equipment are also discussed. The shortcomings and its development directions are also proposed to provide sufficient data support for the subsequent research.

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Karimi-Sibaki, E., A. Kharicha, M. Wu, A. Ludwig, and J. Bohacek. "A Parametric Study of the Vacuum Arc Remelting (VAR) Process: Effects of Arc Radius, Side-Arcing, and Gas Cooling." Metallurgical and Materials Transactions B 51, no. 1 (2019): 222–35. http://dx.doi.org/10.1007/s11663-019-01719-5.

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Abstract Main modeling challenges for vacuum arc remelting (VAR) are briefly highlighted concerning various involving phenomena during the process such as formation and movement of cathode spots on the surface of electrode, the vacuum plasma, side-arcing, the thermal radiation in the vacuum region, magnetohydrodynamics (MHD) in the molten pool, melting of the electrode, and solidification of the ingot. A numerical model is proposed to investigate the influence of several decisive parameters such as arc mode (diffusive or constricted), amount of side-arcing, and gas cooling of shrinkage gap at

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Gakal, Pavlo, Igor Rybalchenko, Oleksii Tretyak, and Viacheslav Nazarenko. "Experimental investigation of the performance of a loop heat pipe-based cooling system under ultra-high dypass ratio turbojet engine conditions." Aerospace Technic and Technology, no. 1 (January 23, 2025): 14–27. https://doi.org/10.32620/aktt.2025.1.02.

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The subject of this article is the heat transfer processes in a loop heat pipe (LHP) to solve the problem of maintaining the temperature regime of the valves of the air-bleeding system of an aircraft engine. The goal was to experimentally substantiate the operability and efficiency of a cooling system based on LHP for the temperature conditions of a perspective aircraft engine with an ultra-high bypass ratio. The task to be solved: to create a test bench for studying heat transfer processes in cooling systems based on LHP. The test bench should reproduce the temperature of the aircraft engine

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Du, Farui, Jinqian Zhu, Xueping Ding, et al. "Dimensional characteristics of Ti-6Al-4V thin-walled parts prepared by wire-based multi-laser additive manufacturing in vacuum." Rapid Prototyping Journal 25, no. 5 (2019): 849–56. http://dx.doi.org/10.1108/rpj-08-2018-0207.

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Purpose A wire-based additive manufacturing system works with high manufacturing efficiency and low dimensional precision. The purpose of this paper is to study the dimensional characteristics of Ti-6Al-4V thin-walled parts with wire-based multi-laser additive manufacturing in vacuum. Design/methodology/approach Wire-based multi-laser additive manufacturing was carried out to understand the effect brought from different parameters. The Ti-6Al-4V thin-walled parts were formed by different height increments, power inputs and inter-layer cooling times in vacuum. Findings The result shows that, wi

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Bidulský, Róbert, Marco Actis Grande, Zbigniew Brytan, and Mario Rosso. "Effect of Different Vacuum Heat Treatments on the Microstructure of a Low Alloyed Sintered Steel." Materials Science Forum 672 (January 2011): 293–96. http://dx.doi.org/10.4028/www.scientific.net/msf.672.293.

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The main aim of the present contribution is to show how different heat treatment conditions influence the microstructure of a Fe - [1.5Cr - 0.2Mo] - 0.6C powder system. In vacuum furnaces, the cooling rate is generally determined by the pressure of the gas (basically N2) introduced into the chamber. Different gas pressures have been applied, from 0 to 6 bars. The average cooling rates were calculated in the range of 1180 °C to 400 °C and were varying from 0.1 to 6 °C/s, according to the gas pressure. Considering the cooling rates, increasing the nitrogen pressure resulted in an increased amoun

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Setyawan, Albertus D., Hidemi Kato, Junji Saida, and Akihisa Inoue. "Origin of Different Dependence of Apparent Glass-Forming Ability on Casting-Atmosphere-Pressure in Zr-Al-Ni-Cu-Pd Alloy System." Materials Science Forum 561-565 (October 2007): 1311–14. http://dx.doi.org/10.4028/www.scientific.net/msf.561-565.1311.

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A Zr65Al7.5Ni10Cu17.5-xPdx (x=0-17.5 at. %) alloy system is found to exhibit a different dependence of glass-forming ability (GFA) on atmosphere-pressure during mold casting process. High-Pd alloys (x=7.5-17.5) show a remarkable increase of critical size for glass formation (dc) as casting-atmosphere (Ar) pressure varies from vacuum to ambient. No significant change of dc, however, is observed in low-Pd alloys (x=0-5) despite the variation in atmosphere pressure. The origin of the phenomenon is unveiled by correlating the cooling characteristic during mold casting and on-cooling phase transfor

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