...Md Naim Hossain; Koushik Ghosh The objective of the present work is to find out the optimal mass flux of two common refrigerants, R32 and R410A, undergoing boiling in an evaporator tube based on the entropy generation minimization approach. An entropy generation model is developed for two-phase...

... of horizontal staggered tube bundles under upward crossflow boiling to see how tube rows affect the heat transfer coefficient (HTC). The experimental set-up developed houses the tube bundle for temperature measurements and facilities the recording of high-speed images at different operating conditions...

... professional, Infratec, Germany) is used to measure the temperature distribution and a high-speed camera (5F01-M, Revealer, China) is used to record images of bubbles during the direct-contact boiling process. The thermal images with an initial temperature difference of 100 °C and a flowrate ratio of 4:1...

... the change in circumferential temperature is found to be negligible. Boiling phenomenon starts at 2500 W/m 2 and the volume fraction of moderator vapour increases as the heat flux is increased, average density of moderator inside the enclosure decreases and continuous variation in film thickness is also...

... 12 05 2022 heat pipe heat exchanger limits inner approach boiling condensation heat recovery heat transfer enhancement thermal systems two-phase flow and heat transfer Heat pipe (HP) technology becomes popular in waste heat recovery applications, heating, ventilation...

...Kaushik Mondal; Anandaroop Bhattacharya This paper reports a single-component two-dimensional pseudo-potential phase change model using lattice Boltzmann method (LBM) to investigate the enhancement of pool boiling heat transfer inside an array of solid pillars with square cross section. The entire...

... promising value. Email: vivekkumar.b.patel@gmail.com Email: rajesh.patel@sot.pdpu.ac.in Email: sumit.kumar@gperi.ac.in 25 03 2021 27 08 2021 30 08 2021 13 10 2021 desalination humidification-dehumidification H-DH bubble column thermo-Electric cooler boiling...

...% engendered a HTC of 80% that of simulation. Consistent with analysis, the local HTC sufficiently mitigated nucleate/flow boiling. In summary, the analytically derived upper target design empirically demonstrated sufficient cooling despite quixotic beam conditions and unforeseen displacements. References...

... 05 2021 22 06 2021 Hottel-Whillier-Bliss equation PVT collectors active solar still solar energy boiling energy systems heat and mass transfer heat exchangers thermal systems The world is facing challenge to produce freshwater for the survival of human beings and without...

... under adiabatic conditions. Email: cahfxuyu@nuaa.edu.cn Email: yanzh1998@nuaa.edu.cn Email: bwyys00@nuaa.edu.cn 06 03 2021 02 05 2021 05 05 2021 18 06 2021 minichannel frictional pressure drop adiabatic two-phase flow predictive model boiling heat and mass...

... calculations. Email: bjacimovic@mas.bg.ac.rs Email: sgenic@mas.bg.ac.rs Email: n.jacimovic@danieli.it 23 11 2020 14 03 2021 14 03 2021 18 06 2021 fired boilers flue gas membrane water-wall heat transfer boiling heat and mass transfer heat exchangers heat pipes...

... be matched to ensure the surfaces of particles remain above the boiling point of water during spraying. When water is sprayed on the 200 °C preheated media bed, the top half of the media bed is uniformly cooled down to approximately 75 °C by t s = 0.45. At t s = 0.75, steam begins to reflood the top...

... Email: damien.lecointe@irt-jules-verne.fr 29 10 2020 11 03 2021 14 03 2021 09 04 2021 boiling forced convection jets wakes and impingement cooling two-phase flow and heat transfer The uniform and controlled cooling of injection and thermoforming molds...

...: prasad@iitm.ac.in 10 10 2020 14 02 2021 15 02 2021 31 03 2021 blockage dryout liquid sodium wall temperature boiling two-phase flow and heat transfer Fast breeder reactors (FBRs) use liquid metals such as liquid sodium, lead–bismuth eutectic, and so...

...Ankit Bhagat; Gautam Ghaisas; John Mathew; Shankar Krishnan The mitigation of boiling instabilities by using water-alcohol mixtures as coolants in a two-phase pumpless loop is experimentally investigated. Water-miscible alcohol, namely, 2-propanol, is added to water in quantities of 0.05, 0.1...

...B. Swain; A. R. Pati; S. S. Mohapatra; A. Behera In the current work, for the simultaneous attainment of enhancement and uniformity in temperature distribution in case of quenching performed in transition and nucleate boiling regimes, the heat treatment is performed by adopting thin coolant flow...

...Junye Li; Yuhao Lin; Kan Zhou; Wei Li An experimental investigation of subcooled flow boiling in a rectangular mini-gap channel with the dimension of 0.5 mm × 5 mm was conducted with deionized water as the working fluid. Fabricated by electroless plating method and high-temperature treatment...

... Nanofluid (0.15%) + ethylene glycol After 10 After 20 After 30 For the further verification of the boiling behavior, the variations of surface heat flux with time for various cases are analyzed (Figs. 7( a ) and 7( b ) ). These clearly ensure that for all...

... boiled on the hot metal. The superheater pressure experiences the net effect of the evaporation of liquid into steam and the addition of subcooled liquid overflowing from the separator. In the flownex model, the overflow of liquid into the main steam system occurred at 03:46, which aligns...

... is evaluated using HFE-7100 as the coolant at three inlet volumetric flow rates of 150, 300, and 450 ml/min. The boiling performance is highest for the flow rate of 450 ml/min with the maximum heat flux value of 174 W/cm 2 . Critical heat flux (CHF) was observed at two of the tested flow rates, 150 and 300 ml...