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Journal articles on the topic 'Two-phase closed thermosyphon'

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Author: Grafiati

Published: 10 December 2022

Last updated: 28 January 2023

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1

Wang, Xin Yu, Gong Ming Xin, Fu Zhong Tian, and Lin Cheng. "Effect of Internal Helical Microfin on Condensation Performance of Two-Phase Closed Thermosyphon." Advanced Materials Research 516-517 (May 2012): 9–14. http://dx.doi.org/10.4028/www.scientific.net/amr.516-517.9.

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This paper investigates the condensation performance of a novel type of two-phase closed thermosyphon with internal helical microfin. The length of the thermosyphon is 1500 mm, with the filling ratio of 60%. A series of experiments were conducted for the novel and conventional thermosyphons. The results show that the internal helical microfins could not only ameliorate the thermal response characteristic but also improve the condensation heat transfer coefficient by 116.87% for the higher heat input. A correlation was developed to predict the condensation heat transfer coefficient of the novel thermosyphon.

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2

Chehrazi, Mohammad, and Bahareh Moghadas. "Experimental study of single walled carbon nanotube/water nanofluid effect on a two-phase closed thermosyphon performance." Journal of the Serbian Chemical Society, no. 00 (2020): 70. http://dx.doi.org/10.2298/jsc200628070c.

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Thermosyphons are one of the most efficient heat exchanger apparatus that are used extensively in different industries. One of the most common uses of this device is energy recovery, which is essential due to the energy crisis. Several parameters, such as geometric dimensions, type of working fluid, type of thermosyphon's body, affect a thermosyphon efficiency. In this experiment, the effect of type and concentration of single-walled carbon nanotube nanofluid (SWCNT / Water) on heat transfer efficiency in a two-phase closed thermosyphon (TPCT) has been investigated. For this purpose, a system with a two-phase closed thermosyphon was initially constructed. Then SWCNT/water nanofluids at 0.2, 0.5 and 1 % weight concentration were used as a working fluid in the thermosyphon system. The results of current experiments showed that the addition of nanofluid with any weight concentration and the increase of input power increases the performance of the system. Also, the heat resistance of TPCT reduced when the level of SWCNT and input power increased. So, for prepared nanofluid's samples, minimum thermal resistance obtained at 1 wt.% SWCNT and 120 W. Also, the Nusselt number increased with raising the input power and decreased with increasing the concentration. In all experiments, all prepared nanofluid samples have significantly better thermal performance in comparison with pure water.

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3

Ponomarev, Konstantin, Anastasiya Islamova, and Feoktistov Dmitry. "Critical heat flux in a closed two-phase thermosyphon." EPJ Web of Conferences 196 (2019): 00022. http://dx.doi.org/10.1051/epjconf/201919600022.

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A closed two-phase thermosyphon experimental setup with the possibility of recording the coolant and its vapors temperatures was developed. We proved the use of the V. M. Borishansky and S. S. Kutateladze correlations for the determination of the critical heat flux in closed two-phase thermosyphons with the ratio of their internal diameter to the length of the heat supply zone in the range of 1 < dBhym / Lu < 2.

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4

Maksimov, V. I., and A. Е. Nurpeiis. "Mathematical modeling of heat transfer in a closed two- phase thermosyphon." Power engineering: research, equipment, technology 21, no. 3 (November 29, 2019): 3–13. http://dx.doi.org/10.30724/1998-9903-2019-21-3-3-13.

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We suggested a new approach for describing heat transfer in thermosyphons and determining the characteristic temperatures. The processes of thermogravitation convection in the coolant layer at the lower cap, phase transitions in the evaporation zone, heat transfer as a result of conduction in the lower cap are described at the problem statement. The main assumption, which was used during the problem formulation, is that the characteristic times of steam motion through the thermosyphon channel are much less than the characteristic times of thermal conductivity and free convection in the coolant layer at the lower cap of the thermosyphon. For this reason, the processes of steam motion in the thermosyphon channel, the condensate film on the upper cap and the vertical walls were not considered. The problem solution domain is a thermosyphon through which heat is removed from the energy-saturated equipment. The ranges of heat flow changes were chosen based on experimental data. The geometric parameters of thermosyphon and the fill factors were chosen the same as in the experiments (height is 161 mm, diameter is 42 mm, wall thickness is 1.5 mm, ε=4-16%) for subsequent comparison of numerical simulation results and experimental data. In the numerical analysis it was assumed that the thermophysical properties of thermosyphon and coolant caps do not depend on temperature; laminar flow regime was considered. The dimensionless equations of vortex, Poisson and energy transfer for the liquid coolant under natural convection and the equations of thermal conductivity for the lower cap wall are solved by the method of finite differences. Numerical simulation results showed the relationship between the characteristic temperatures and the heat flow supplied to the bottom cap of thermosyphon. The results of the theoretical analysis are in satisfactory agreement with the known experimental data.

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5

Reed, J. G., and C. L. Tien. "Modeling of the Two-Phase Closed Thermosyphon." Journal of Heat Transfer 109, no. 3 (August 1, 1987): 722–30. http://dx.doi.org/10.1115/1.3248150.

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A comprehensive model is developed to predict the steady-state and transient performance of the two-phase closed thermosyphon. One-dimensional governing equations for the liquid and vapor phases are developed using available correlations to specify the shear stress and heat transfer coefficients. Steady-state solutions agree well with thermosyphon flooding data from several sources and with film thickness data obtained in the present investigation. While no data are available with which to compare the transient analysis, the results indicate that, for most systems, the governing time scale for system transients is the film residence time, which is typically much longer than the times required for viscous and thermal diffusion through the film. The proposed model offers a versatile and comprehensive analysis tool which is relatively simple.

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6

Faghri, A., M. M. Chen, and M. Morgan. "Heat Transfer Characteristics in Two-Phase Closed Conventional and Concentric Annular Thermosyphons." Journal of Heat Transfer 111, no. 3 (August 1, 1989): 611–18. http://dx.doi.org/10.1115/1.3250726.

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The heat transfer in the condenser sections of conventional and annular two-phase closed thermosyphon tubes has been studied experimentally and analytically. In addition, the results of a series of experiments on the flooding phenomena of the same thermosyphons are reported. Freon 113 and acetone were used as working fluids. An improved correlation was developed to predict the performance limits of conventional thermosyphons using the present and previously existing experimental data for flooding with different working fluids. The prediction of the theoretical Nusselt number for the situations associated with measured heat transfer coefficients in the condenser section indicated that the effect of interfacial shear on the film flow is small. The increase of the experimental reflux condensation heat transfer coefficients over theoretical predictions is attributed to waves at the vapor–liquid interface.

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7

Bolozdynya, A. I., V. V. Dmitrenko, Yu V. Efremenko, A. V. Khromov, R. R. Shafigullin, A. V. Shakirov, V. V. Sosnovtsev, I. A. Tolstukhin, Z. M. Uteshev, and K. F. Vlasik. "The two-phase closed tubular cryogenic thermosyphon." International Journal of Heat and Mass Transfer 80 (January 2015): 159–62. http://dx.doi.org/10.1016/j.ijheatmasstransfer.2014.09.001.

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8

Aghel, Babak, Masoud Rahimi, and Saeed Almasi. "Experimental study on heat transfer characteristics of a modified two-phase closed thermosyphon." Thermal Science 21, no. 6 Part A (2017): 2481–89. http://dx.doi.org/10.2298/tsci150616118a.

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This study investigated the heat transfer characteristics of modified two-phase closed thermosyphon (TPCT) using water as the working fluid. In the modified TPCT, to reduce thermal resistance, a small TPCT was inserted inside the adiabatic section. For both the plain and modified thermosyphons the performances were determined at various heat inputs from 71-960 W. The results showed that the modified TPCT had less temperature difference between the evaporator and condenser sections than the plain one. According to the experimental data, in the modified TPCT, the thermal performance increased up to 20% over that of the unmodified one.

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9

Harley, C., and A. Faghri. "Complete Transient Two-Dimensional Analysis of Two-Phase Closed Thermosyphons Including the Falling Condensate Film." Journal of Heat Transfer 116, no. 2 (May 1, 1994): 418–26. http://dx.doi.org/10.1115/1.2911414.

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A transient two-dimensional thermosyphon model is presented that accounts for conjugate heat transfer through the wall and the falling condensate film. The complete transient two-dimensional conservation equations are solved for the vapor flow and pipe wall, and the liquid film is modeled using a quasi-steady Nusselt-type solution. The model is verified by comparison with existing experimental data for a low-temperature thermosyphon with good agreement. A typical high-temperature thermosyphon was then simulated to examine the effects of vapor compressibility and conjugate heat transfer.

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10

Wu, Zhang, Li, and Xu. "Effect of the Inclination Angle on the Steady-State Heat Transfer Performance of a Thermosyphon." Applied Sciences 9, no. 16 (August 13, 2019): 3324. http://dx.doi.org/10.3390/app9163324.

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A two-phase closed thermosyphon is an efficient heat transfer element. The heat transfer process of this type of thermosyphon includes conduction and convective heat transfer accompanied by phase changes. Variations in the inclination angle of a thermosyphon affect the steady-state heat transfer performance of the device. Therefore, the inclination angle is an important factor affecting the performance of a thermosyphon. In this paper, an equation for the actual heating area variations with respect to the inclination angle is deduced, and a model for the areal thermal resistance of a thermosyphon is proposed by analyzing the main influence mechanisms of the inclination angle on the heat transfer process. The experimental results show that the areal thermal resistance, which accounts for the effect of the actual heating area, does not change with respect to the inclination angle and exhibits a linear relationship with the heat transfer rate. The thermal resistance equation is fit according to the experimental data when the inclination angle of the thermosyphon is vertically oriented (90°), and the predicted values of the thermosyphon’s thermal resistance are obtained when the thermosyphon is inclined. The deviations between the experimental data and predicted values are less than ±0.05. Therefore, the theoretical equation can accurately predict the thermosyphon’s thermal resistance at different inclination angles.

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11

Arkhipov, Vladimir, Alexander Nee, and Lily Valieva. "Numerical Simulation of Heat Transfer in a Closed Two-Phase Thermosiphon." Key Engineering Materials 743 (July 2017): 449–53. http://dx.doi.org/10.4028/www.scientific.net/kem.743.449.

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This paper presents the results of mathematical modelling of three–dimensional heat transfer in a closed two-phase thermosyphon taking into account phase transitions. Three-dimensional conduction equation was solved by means of the finite difference method (FDM). Locally one-dimensional scheme of Samarskiy was used to approximate the differential equations. The effect of the thermosyphon height and temperature of its bottom lid on the temperature difference in the vapor section was shown.

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12

Wasel, M., M. Mousa, E. El-Negiry, and A. El-Adl. "THERMAL PERFORMANCE OF A TWO-PHASE CLOSED THERMOSYPHON." International Conference on Applied Mechanics and Mechanical Engineering 15, no. 15 (May 1, 2012): 1–24. http://dx.doi.org/10.21608/amme.2012.37064.

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13

Chang, C. C., S. C. Kuo, M. T. Ke, and S. L. Chen. "Two-Phase Closed-Loop Thermosyphon for Electronic Cooling." Experimental Heat Transfer 23, no. 2 (March 12, 2010): 144–56. http://dx.doi.org/10.1080/08916150903402807.

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14

Niro, A., and G. P. Beretta. "Boiling regimes in a closed two-phase thermosyphon." International Journal of Heat and Mass Transfer 33, no. 10 (October 1990): 2099–110. http://dx.doi.org/10.1016/0017-9310(90)90112-8.

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15

Amatachaya, P., and W. Srimuang. "Comparative heat transfer characteristics of a flat two-phase closed thermosyphon (FTPCT) and a conventional two-phase closed thermosyphon (CTPCT)." International Communications in Heat and Mass Transfer 37, no. 3 (March 2010): 293–98. http://dx.doi.org/10.1016/j.icheatmasstransfer.2009.11.004.

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16

SALEM, MOHAMED, TAREK A. MEACHAIL, MAGDY A. BASSILY, and SHUICHI TORII. "Heat Transfer Enhancement Using Graphene Oxide/Water Nanofluid in a Two-Phase Closed Thermosyphon." INTERNATIONAL JOURNAL OF EARTH SCIENCES AND ENGINEERING 10, no. 02 (April 26, 2017): 266–69. http://dx.doi.org/10.21276/ijee.2017.10.0218.

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17

Obaid, Akram, and Wail Sami Sarsam. "Parametric Study of a Two-Phase Closed Thermosyphon Loop." Journal of Engineering 28, no. 5 (May 1, 2022): 92–118. http://dx.doi.org/10.31026/j.eng.2022.05.06.

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A theoretical and experimental investigation was carried out to study the behavior of a two-phase closed thermosyphon loop (TPCTL) during steady-state operation using different working fluids. Three working fluids were investigated, i.e., distilled water, methanol, and ethanol. The TPCTL was constructed from an evaporator, condenser, and two pipelines (riser and downcomer). The driving force is the difference in pressure between the evaporator and condenser sections and the fluid returns to the heating section by gravity. In this study, the significant parameters used in the experiments were filling ratios (FR%) of 50%, 75%, and 100% and heat-input range at the evaporator section of 215-860.2 W. When the loop reached to the steady-state, the wall-temperature was recorded at various positions along the thermosyphon loop. Results showed that the thermal performance with water was better than methanol and ethanol with same condition. The experimental values of the heat transfer coefficient at the evaporator section were measured for the three working fluids. The results were estimated with the nucleate boiling correlation using engineering equation solver (ESS) program. In addition, a comparison between the experimental ( ) and theoretical ( values of heat transfer coefficient in the evaporator section showed good agreement with a maximum difference of 16%.

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18

Al-Ani, M. A. "Convective heat transfer in a closed two-phase thermosyphon." EPJ Web of Conferences 76 (2014): 01001. http://dx.doi.org/10.1051/epjconf/20147601001.

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19

UEDA, Tatsuhiro, Tohru MIYASHITA, and Ping-Hsu CHU. "Heat Transport Characteristics of a Closed Two-Phase Thermosyphon." JSME international journal. Ser. 2, Fluids engineering, heat transfer, power, combustion, thermophysical properties 32, no. 2 (1989): 239–46. http://dx.doi.org/10.1299/jsmeb1988.32.2_239.

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20

KOBAYASHI, Tetsuya, Fumito KAMINAGA, and Kunihito MATSUMURA. "21818 Heat Transfer Analysis of Closed Two-Phase Thermosyphon." Proceedings of Conference of Kanto Branch 2007.13 (2007): 535–36. http://dx.doi.org/10.1299/jsmekanto.2007.13.535.

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21

UEDA, Tatsuhiro, Tohru MIYASHITA, and Ping-hsu CHU. "Heat transport characteristics of a closed two-phase thermosyphon." Transactions of the Japan Society of Mechanical Engineers Series B 54, no. 506 (1988): 2848–55. http://dx.doi.org/10.1299/kikaib.54.2848.

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22

Naresh, Y., and C. Balaji. "Numerical investigations of small diameter two-phase closed thermosyphon." Journal of Physics: Conference Series 745 (September 2016): 032122. http://dx.doi.org/10.1088/1742-6596/745/3/032122.

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23

Brusly Solomon, A., Arun Mathew, K. Ramachandran, B. C. Pillai, and V. K. Karthikeyan. "Thermal performance of anodized two phase closed thermosyphon (TPCT)." Experimental Thermal and Fluid Science 48 (July 2013): 49–57. http://dx.doi.org/10.1016/j.expthermflusci.2013.02.007.

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24

Khandekar, Sameer, Yogesh M. Joshi, and Balkrishna Mehta. "Thermal performance of closed two-phase thermosyphon using nanofluids." International Journal of Thermal Sciences 47, no. 6 (June 2008): 659–67. http://dx.doi.org/10.1016/j.ijthermalsci.2007.06.005.

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25

Noie, S. H. "Heat transfer characteristics of a two-phase closed thermosyphon." Applied Thermal Engineering 25, no. 4 (March 2005): 495–506. http://dx.doi.org/10.1016/j.applthermaleng.2004.06.019.

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26

Ponomarev, Konstantin O., Geniy V. Kuznetsov, Dmitry V. Feoktistov, Evgenia G. Orlova, and Vyacheslav I. Maksimov. "On heat transfer mechanism in coolant layer on bottom cover of a two-phase closed thermosyphon." Tyumen State University Herald. Physical and Mathematical Modeling. Oil, Gas, Energy 6, no. 1 (2020): 65–86. http://dx.doi.org/10.21684/2411-7978-2020-6-1-65-86.

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The authors hypothesize that the intensity of all thermophysical and hydrodynamic processes in a thermosyphon depends, first of all, on the intensity of heat transfer in the coolant layer on the bottom cover and on the free surface of this layer. Based on the experimentally obtained temperature fields in a two phase closed thermosyphon, the authors have formulated a mathematical model of heat transfer in such heat exchangers which differs from the known models by accounting for conduction and convection only in the coolant layer on the bottom cover and conduction in the evaporation section of the thermosyphon. The calculated temperatures in characteristic points of the coolant layer comply with the readings of thermocouples. The results of numerical simulation provide grounds for concluding that the thermogravitational convection in the coolant layer on the bottom cover plays a dominant role in controlling the intensity of heat transfer in the thermosyphon.

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27

Tian, F. Z., Gong Ming Xin, Xin Yu Wang, and Lin Cheng. "An Investigation of the Unstable Oscillation Phenomenas of Two-Phase Closed Thermosyphon." Advanced Materials Research 668 (March 2013): 608–11. http://dx.doi.org/10.4028/www.scientific.net/amr.668.608.

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Two-phase closed thermosyphon has been widely used in many heat transfer devices due to its high thermal conductivity, low cost and sample structure. During its starting and operation, there have some unstable oscillation, including dry oscillation, geyser boiling and carrying oscillation. An experimental investigation of unstable oscillation of two-phase closed thermosyphon was presented in the present paper. The experimental results showed that under the same starting power, geyser boiling is easy to achieve stability with the cooling power increasing, and under the same cooling power condition, geyser boiling could be significantly affected by the starting power. At the situation of high heating power, carrying oscillation happened easily, which caused great temperature fluctuation and disastrous effects on the heat pipe.

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28

Andrzejczyk, Rafal. "Experimental Investigation of the Thermal Performance of a Wickless Heat Pipe Operating with Different Fluids: Water, Ethanol, and SES36. Analysis of Influences of Instability Processes at Working Operation Parameters." Energies 12, no. 1 (December 28, 2018): 80. http://dx.doi.org/10.3390/en12010080.

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In this study, the influences of different parameters on performance of a wickless heat pipe have been presented. Experiments have been carried out for an input power range from 50 W to 300 W, constant cooling water mass flow rate of 0.01 kg/s, and constant temperature at the inlet to condenser of 10 °C. Three working fluids have been tested: water, ethanol, and SES36 (1,1,1,3,3-Pentafluorobutane) with different filling ratios (0.32, 0.51, 1.0). The wall temperature in different locations (evaporation section, adiabatic section, and condenser section), as well as operating pressure inside two phase closed thermosyphon have been monitored. The wickless heat pipe was made of 0.01 m diameter copper tube, which consists of an evaporator, adiabatic, and condensation sections with the same length (0.4 m). For all working fluids, a dynamic start-up effect caused by heat conduction towards the liquid pool was observed. Only the thermosyphon filled with SES36 was observed to have operation limitation caused by achieving the boiling limit in TPCTs (two-phase closed thermosyphons). The geyser boiling effect has been observed only for thermosyphon filled with ethanol and for a high filling ratio. The performance of the thermosyphon determined the form of the heat transfer resistance of the TPCT and it was found to be dependent of input power and filling ratio, as well as the type of working fluid and AR (aspect ratio). Comparison with other authors would seem to indicate that lower AR results in higher resistance; however, the ratio of condenser section length to inside diameter of pipe is also a very important parameter. Generally, performance of the presented thermosyphon is comparable to other constructions.

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29

Bieliński, Henryk, and Jarosław Mikielewicz. "Computer cooling using a two phase minichannel thermosyphon loop heated from horizontal and vertical sides and cooled from vertical side." Archives of Thermodynamics 31, no. 4 (October 1, 2010): 51–59. http://dx.doi.org/10.2478/v10173-010-0027-4.

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Computer cooling using a two phase minichannel thermosyphon loop heated from horizontal and vertical sides and cooled from vertical sideIn the present paper it is proposed to consider the computer cooling capacity using the thermosyphon loop. A closed thermosyphon loop consists of combined two heaters and a cooler connected to each other by tubes. The first heater may be a CPU processor located on the motherboard of the personal computer. The second heater may be a chip of a graphic card placed perpendicular to the motherboard of personal computer. The cooler can be placed above the heaters on the computer chassis. The thermosyphon cooling system on the use of computer can be modeled using the rectangular thermosyphon loop with minichannels heated at the bottom horizontal side and the bottom vertical side and cooled at the upper vertical side. The riser and a downcomer connect these parts. A one-dimensional model of two-phase flow and heat transfer in a closed thermosyphon loop is based on mass, momentum, and energy balances in the evaporators, rising tube, condenser and the falling tube. The separate two-phase flow model is used in calculations. A numerical investigation for the analysis of the mass flux rate and heat transfer coefficient in the steady state has been accomplished.

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30

M. P., Tyurin, and Borodina E. S. "Analysis of factors affecting the efficiency of thermosyphones." Industrial processes and technologies 1, no. 1 (September 2021): 77–88. http://dx.doi.org/10.37816/2713-0789-2021-1-1-77-88.

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The paper provides a review and analysis of research works aimed at studying the factors that affect the efficiency and reliability of closed two-phase thermosyphons as heat utilizers of heat technological emissions. Factors such as the geometric characteristics of thermosyphons and their ratio, the angles of inclination of the evaporation and condensation surfaces, the degree of filling of the thermosyphon pipe, the state and physical properties of the evaporation and condensation surfaces, the influence of acoustic and vibration influences on the efficiency of heat and mass transfer, as well as their use in as working bodies of nanofluids.

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31

Tyurin, M. P., and E. S. Borodina. "Analysis of factors affecting the efficiency of thermosyphones." Industrial processes and technologies 1, no. 1 (2021): 77–88. http://dx.doi.org/10.37816/1234-5678-2021-1-1-77-88.

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The paper provides a review and analysis of research works aimed at studying the factors that affect the efficiency and reliability of closed two-phase thermosyphons as heat utilizers of heat technological emissions. Factors such as the geometric characteristics of thermosyphons and their ratio, the angles of inclination of the evaporation and condensation surfaces, the degree of filling of the thermosyphon pipe, the state and physical properties of the evaporation and condensation surfaces, the influence of acoustic and vibration influences on the efficiency of heat and mass transfer, as well as their use in as working bodies of nanofluids.

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32

Kravets, V. Yu, V. N. Moraru, and D. I. Gurov. "INFLUENCE OF VARIOUS FACTORS ON THE HEAT TRANSFER CHARACTERISTICS OF MINIATURE TWO-PHASE THERMOSYPHONS WITH NANOFLUIDS." Energy Technologies & Resource Saving, no. 4 (December 20, 2022): 50–61. http://dx.doi.org/10.33070/etars.4.2022.05.

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Currently, various types of nanofluids are of increasing interest as heat carriers for heat transfer in thermosiphons and other evaporative-condensation devices. This paper presents and analyzes experimental data on heat transfer characteristics (total thermal resistances, maximum transferable heat fluxes and equivalent thermal conductivity) of two-phase miniature thermosyphons with nanofluids. Geometric parameters of thermosiphons for all experimental samples were identical and were: total length 700 mm, inner diameter 5 mm. The length of the heating zone was changed stepwise from 45 mm to 200 mm. The length of the condensation zone was 200 mm for all investigated thermosyphons. The amount of coolant in the thermosiphons was the same, and its height in the heating zone before the start of the study was 88 mm. Distilled water and aqueous nanofluids with nanoparticles of carbon nanotubes, synthetic diamond, and carbon black were used as heat carriers. The main attention is paid to the study of the influence of the filling factor and the angle of inclination of the thermosyphon, the value of the transferred heat flux and the chemical nature of the coolant (nanofluid) on the heat transfer characteristics of thermosyphons. The strong influence of these factors on the efficiency of a miniature closed two-phase thermosyphon has been demonstrated. A more than twofold increase in the heat transfer characteristics of thermosyphons (the maximal transferred heat flux) was obtained with a sharp decrease in their thermal resistance. It is assumed that the significantly higher heat transfer capacity of such thermosiphons compared to those filled with water is explained not only by the higher thermal conductivity of the coolant, but also by the appearance of a peculiar porous structure that prevents the appearance of a vapor film and promotes the intensification of heat transfer processes during boiling. Bibl. 16, Fig. 10, Tab. 2.

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33

Shalaby, M., F. Araid, Mohamed Awad, and Gamal Sultan. "Heat Transfer Performance of a Two-Phase Closed Thermosyphon.(Dept.M)." MEJ. Mansoura Engineering Journal 25, no. 2 (March 22, 2021): 35–45. http://dx.doi.org/10.21608/bfemu.2021.158418.

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34

Nurpeiis, Atlant. "Mathematical modeling of heat transfer in closed two-phase thermosyphon." EPJ Web of Conferences 76 (2014): 01016. http://dx.doi.org/10.1051/epjconf/20147601016.

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35

Ziapour, Behrooz M., and Hadi Shaker. "Exergetic analysis of a long two-phase closed thermosyphon system." International Journal of Exergy 7, no. 6 (2010): 714. http://dx.doi.org/10.1504/ijex.2010.035517.

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36

YASUMATSU, Taro, Qiusheng LIU, and Katsuya FUKUDA. "1120 Heat Transfer Performance of Two Phase Closed Loop Thermosyphon." Proceedings of Conference of Kansai Branch 2009.84 (2009): _11–20_. http://dx.doi.org/10.1299/jsmekansai.2009.84._11-20_.

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37

Zuo, Z. J., and F. S. Gunnerson. "Heat Transfer Analysis of an Inclined Two-Phase Closed Thermosyphon." Journal of Heat Transfer 117, no. 4 (November 1, 1995): 1073–75. http://dx.doi.org/10.1115/1.2836287.

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38

Suresh kumar, R., S. Tharves Mohideen, N. Jayanthi, and M. Venkatesh. "Thermal analysis of two-phase closed thermosyphon (TPCT) using nanofluids." Materials Today: Proceedings 26 (2020): A1—A5. http://dx.doi.org/10.1016/j.matpr.2020.05.700.

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39

Zuo, Z. J., and F. S. Gunnerson. "Numerical modeling of the steady-state two-phase closed thermosyphon." International Journal of Heat and Mass Transfer 37, no. 17 (November 1994): 2715–22. http://dx.doi.org/10.1016/0017-9310(94)90388-3.

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Zuo, Z. "Heat transfer analysis of an inclined two-phase closed thermosyphon." International Journal of Multiphase Flow 22 (December 1996): 148. http://dx.doi.org/10.1016/s0301-9322(97)88582-5.

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Tsai, Te-En, Hsin-Hsuan Wu, Chih-Chung Chang, and Sih-Li Chen. "Two-phase closed thermosyphon vapor-chamber system for electronic cooling." International Communications in Heat and Mass Transfer 37, no. 5 (May 2010): 484–89. http://dx.doi.org/10.1016/j.icheatmasstransfer.2010.01.010.

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Chang, Shyy Woei, Tong Miin Liou, Ya Ji, and Yu Ru Jiang. "Thermal performance of two-phase reciprocating anti-gravity closed thermosyphon." International Journal of Heat and Mass Transfer 100 (September 2016): 704–17. http://dx.doi.org/10.1016/j.ijheatmasstransfer.2016.04.070.

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Lataoui, Zied, and Abdelmajid Jemni. "Experimental investigation of a stainless steel two-phase closed thermosyphon." Applied Thermal Engineering 121 (July 2017): 721–27. http://dx.doi.org/10.1016/j.applthermaleng.2017.04.135.

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Ma, Limin, Xiaoying Yin, Linlin Shang, and Zhongli Ji. "Modelling of two-phase closed thermosyphon based on SINDA/FLUINT." Applied Thermal Engineering 130 (February 2018): 375–83. http://dx.doi.org/10.1016/j.applthermaleng.2017.10.156.

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Baojin, Qi, Zhang Li, Xu Hong, and Sun Yan. "Heat transfer characteristics of titanium/water two-phase closed thermosyphon." Energy Conversion and Management 50, no. 9 (September 2009): 2174–79. http://dx.doi.org/10.1016/j.enconman.2009.04.030.

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Bieliński, Henryk, and Jaroslaw Mikielewicz. "Analysis of Heat Transfer and Fluid Flow in Two-Phase Thermosyphon Loop with Minichannels." Applied Mechanics and Materials 831 (April 2016): 92–103. http://dx.doi.org/10.4028/www.scientific.net/amm.831.92.

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Abstract:

The present paper offers an analysis of heat transfer and fluid flow in two phase thermosyphon loop with minichannels. A one-dimensional model of two-phase flow and heat transfer in a closed thermosyphon loop with minichannels was examined. The created general model is based on mass, momentum, and energy balances in the evaporators, rising tube, condensers and the falling tube. The separate two-phase flow model is used in calculations. The numerical results obtained for the selected heater and cooler using the general model of thermosyphon loop indicate that the mass flux increases with increasing length of the heated section and decreases with increasing length of the cooled section of the loop. It was found that the heat transfer coefficient for flow boiling and flow condensation in the steady state increases with increasing heat flux in the heater and cooler with minichannels, respectively. The design and configuration of heaters and coolers has a considerable impact on the efficiency of thermosyphon loop. These factors make it possible to optimize the computer processor cooling.

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Tong, Wei Li, Ming K. Tan, Jit Kai Chin, K. S. Ong, and Yew Mun Hung. "Coupled effects of hydrophobic layer and vibration on thermal efficiency of two-phase closed thermosyphons." RSC Advances 5, no. 14 (2015): 10332–40. http://dx.doi.org/10.1039/c4ra14589e.

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Observation of elongated liquid jets and entrained droplets from the liquid–vapor interface induced by high-acceleration vibration provides valuable insights into the physical process of liquid–vapor interaction phenomena in a thermosyphon (TPCT).

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Bieliński, Henryk, and Jarosław Mikielewicz. "Application of a two-phase thermosyphon loop with minichannels and a minipump in computer cooling." Archives of Thermodynamics 37, no. 1 (March 1, 2016): 3–16. http://dx.doi.org/10.1515/aoter-2016-0001.

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AbstractThis paper focuses on the computer cooling capacity using the thermosyphon loop with minichannels and minipump. The one-dimensional separate model of two-phase flow and heat transfer in a closed thermosyphon loop with minichannels and minipump has been used in calculations. The latest correlations for minichannels available in literature have been applied. This model is based on mass, momentum, and energy balances in the evaporator, rising tube, condenser and the falling tube. A numerical analysis of the mass flux and heat transfer coefficient in the steady state has been presented.

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Sultan, G., M. Shalaby, and A. Abdel Salam. "Heat Transfer Performance of A Vibrated Two-Phase Closed Thermosyphon.(Dept.M)." MEJ. Mansoura Engineering Journal 28, no. 2 (January 20, 2021): 133–45. http://dx.doi.org/10.21608/bfemu.2021.141399.

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Song, Wei, Changjin Zheng, and Jiaming Yang. "Heat transfer rate characteristics of two-phase closed thermosyphon heat exchanger." Renewable Energy 177 (November 2021): 397–410. http://dx.doi.org/10.1016/j.renene.2021.05.147.

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