... 16 11 2023 thermosyphon loop minichannel evaporator air cooling thermal resistance heat transfer performance condensation electronic cooling evaporation experimental/measurement techniques heat exchangers heat pipes thermal systems two-phase flow and heat transfer...

... along the height is kept at 15 deg, the heat transfer performance of spray humidification is the best. The vacuum degree of the condenser is the highest. Email: liu-ty22@mails.tsinghua.edu.cn 20 07 2023 22 10 2023 24 10 2023 16 11 2023 pressure-swirl atomizing nozzle...

... = condenser heat rejection rate (W) Q ˙ e = cooling capacity (W) W ˙ k = power required for compression (W) a uc = area of unit cell (m 2 ) b w , m = derivative of saturated moist air enthalpy at the mean water film temperature (kJ kg −1 K −1...

... liquid film plays an important role in the heat transfer mechanism in the condenser, which allows the vapor to contact the wall directly and reduces the heat transfer resistance. The temperature difference between the evaporator and the condenser can be reduced by adjusting the saturation temperature, so...

... 06 12 2022 offshore energy storage accumulator phase change condensation evaporation two-phase flow and heat transfer Malta Council for Science and Technology 10.13039/501100001867 REP-2021-008 Over the past decade, the wind and solar energy sectors received...

...Sourav Pramanick; Prasenjit Dey; Sandip K. Saha This paper analyses the condensation heat transfer phenomena in minichannel using acetone, ammonia, propylene, and R134a as the working fluids used in new-age space applications. A novel numerical model is developed considering the changes in local...

... power is chosen to be 10 kW. The design specifications of the HPHE are listed in Table 1 . An HPHE consists of 42 copper tubes in two rows of 11 and two rows of 10 tubes forming together four rows. The total length of each tube is 1020 mm, with 420 mm for the evaporator and condenser sections...

... 2021 10 02 2022 16 02 2022 31 03 2022 energy efficiency nanoparticles nanofluids district cooling heat exchanger condensation energy systems heat and mass transfer heat exchangers heat transfer enhancement micro/Nanoscale heat transfer thermal systems thermophysical...

... Email: ssmehend@mtu.edu Email: langyuanl@163.com Email: chenjianan@stu.tjcu.edu.cn Email: tianjj@tjcu.edu.cn 30 05 2021 12 08 2021 16 08 2021 13 10 2021 sessile droplet carbon fiber surface phase transition time deformation bubbles condensation...

...Kaifen Yan; Nanxi Li; Yinong Wu; Rongjian Xie The cryogenic fluids’ flow performance and condensation characteristics with different heating powers in cryogenic loop heat pipes (CLHPs) have not been studied due to the difficulty of measurement at low temperature. In this study, a test system...

... desalination multi-effect mathematical modeling GOR condensation energy systems evaporation heat and mass transfer low-temperature heat transfer thermal systems Water is the main requisite for any prosperous life and development [ 1 ]. The main part of freshwater is stored in the Arctic...

...Kaipo Kekaula; Yitung Chen Two-phase flow pressure drop during condensation of steam inside inclined tube heat exchangers was investigated over a wide range of ambient temperature. The ambient temperature changes from 3 to 45 °C, the steam mass flux varies from 3 to 18 kg/(m 2 · s), vapor quality...

.... It compresses the low-pressure gaseous refrigerant up to a higher pressure which then flows into the condenser. This increase in pressure also leads to an increase in temperature. The compressors in this system operate as discrete fixed volumes, thus each compressor is either running at maximum capacity...

.... , Filippeschi , S. , and Franco , A. , 2017 , “ An Experimental Investigation on the Evaporation and Condensation Heat Transfer of Two-Phase Closed Thermosyphons ,” Exp. Therm. Fluid Sci. , 88 , pp. 111 – 123 . 10.1016/j.expthermflusci.2017.05.019 [21] Sarafraz , M. M. , Hormozi , F...

... on the grand canonical Monte Carlo (GCMC) method. Besides, the influence of adsorption characteristics of 3 He and 4 He on the condensation efficiency, the mass distribution after condensation equilibrium, and the self-cooling loss of the sorption cooler were analyzed. The results show that for the 3 He...

...Hamed Abdul Majeed; Ting Wang The paper industry uses steam to dry paper web through cylinder dryers. As steam condenses inside the dryer, the condensate is removed by means of either a stationary or a rotary siphon. However, during the siphoning process for transporting the condensate, flashing...

...Abhinav Bhanawat; Mahesh Kumar Yadav; Maneesh Punetha; Sameer Khandekar; Pavan K. Sharma Empirical/semi-empirical correlations are available in the literature to quantify the effect of several major parameters, like bulk pressure, non-condensable gas mass fraction, and wall subcooling...

... calculations. Table 2 Reference boundary conditions considered in the CFD simulations Working fluid: R1234yf Value Units State number in Fig. 1 Condensing pressure (mixed flow) 10.7 bars (4) Condensing temperature (mixed flow) 42 °C (4) Evaporating pressure (secondary...

... difference in water surfaces of two tanks. This height difference and the elevation of the inverted U-pipe tip define the value of the vacuum to be grown. The U-pipe tip is connected to the discharge pipe of a compressor which draws a mixture of air, and water vapor from the steam condenser and raises...

... to partial condensation conditions expected in the system as a result of the design. This study makes use of an experimental apparatus to measure steam pressure drop over a range of partial to full condensation inside a circular horizontal tube. The experiment is conducted by measuring the steam flow...