Results 1 to 10 of about 266,401 (348)

Walks of bubbles on a hot wire in a liquid bath

open access: yes, 2016
When a horizontal resistive wire is heated up to the boiling point in a subcooled liquid bath, some vapor bubbles nucleate on its surface. Traditional nucleate boiling theory predicts that bubbles generated from active nucleate sites, grow up and depart ...
Caps, Hervé, Duchesne, Alexis
core   +2 more sources

Experimental investigation of small diameter two-phase closed thermosyphons charged with water, FC-84, FC-77 and FC-3283 [PDF]

open access: yes, 2010
Copyright © 2009 Elsevier Ltd. All rights reserved.An experimental investigation of the performance of thermosyphons charged with water as well as the dielectric heat transfer liquids FC-84, FC-77 and FC-3283 has been carried out. The copper thermosyphon
Jouhara, H, Robinson, AJ
core   +1 more source

Characterization of The Heat Transfer on Spray Quenching for Different Material Properties

open access: yesAtom Indonesia, 2021
A broad range of water spray applications as a means of two-phase cooling scheme has encouraged researches in the thermal management system to support safety and process efficiency in industries.
S Sabariman, E. Specht
doaj   +1 more source

Experimental determination of the induction period for the onset of intensive boiling of a subcooled water flow under conditions of unsteady heat release [PDF]

open access: yesE3S Web of Conferences, 2019
This paper studies prediction of the boiling crisis onset under conditions of the rapid temperature growth of the heat releasing surface washed by a water flow subcooled to the saturation temperature. We obtained experimental data on time delay for rapid
Safarov A., Levin A.
doaj   +1 more source

Direct numerical simulation of nucleate boiling in micro-layer regime

open access: yesInternational Journal of Heat and Mass Transfer, 2018
The physical mechanisms associated with the evolution of a micro-layer beneath a bubble and the transition between contact line and micro-layer regimes are investigated with fully resolved numerical simulations, in the framework of nucleate pool boiling.
A. Urbano, S. Tanguy, G. Huber, C. Colin
semanticscholar   +1 more source

Experimental Flow Boiling Study of R245a at High Reduced Pressures in a Large Diameter Horizontal Tube

open access: yesEnergies, 2022
Evaporators used in organic Rankine cycles (ORC) are designed using existing flow boiling correlations that are mainly based on HVAC&R data. However, the ORC evaporators employed in the industry typically have larger diameters and operational conditions ...
Alihan Kaya   +2 more
doaj   +1 more source

Investigation of Batch Intensive Quenching Processes When Using Hydrodynamic Emitters in Quench Tanks [PDF]

open access: yes, 2016
The paper discusses patented in Ukraine a new intensive quenching IQ–2 technology based on film boiling resonance effect [1]. Namely, the paper discusses improving of the batch intensive quenching (IQ) process known as IQ-2 method by the use of ...
Kobasko, N. (Nikolai)
core   +2 more sources

Liscic/petrofer Probe to Investigate Real Industrial Hardening Processes and Some Fundamentals During Quenching of Steel Parts in Liquid Media [PDF]

open access: yes, 2017
In the paper some unusual processes are considered during quenching such as self-regulated thermal process when metallic probe is covered by insulating polymeric layer, oscillation of temperature in surface layers of probe, creation a “shoulder” when ...
Kobasko, N. (Nikolai)   +1 more
core   +2 more sources

Nucleate Pool Boiling on A Plain Surface

open access: yesHittite Journal of Science and Engineering, 2019
Nucleate pool boiling of distilled water on a plain copper surface has been investigated experimentally and modeled numerically. In the experimental study, bubble behavior on a single nucleation site was observed using high-speed photography and long ...
Tugba Tetik, Ismail Yalcin Uralcan
doaj   +1 more source

Research On Maximizing Critical And Reducing Initial Heat Flux Densities To Eliminate Any Film Boiling And Minimize Distortion During Quenching [PDF]

open access: yes, 2017
In the paper the results of testing three types of FUCHS oils: Thermisol QH 120, Thermisol QH 10 and Thermisol QB 46 are discussed. The main attention is paid to critical heat flux densities evaluation because they create a basis for optimizing cooling ...
Dobryvechir, V. (Volodymyr)   +3 more
core   +2 more sources

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