Results 41 to 50 of about 433 (185)

Experimental Study of Subcooled Boiling Heat Transfer of Axial and Swirling Flows inside Mini Annular Gaps

open access: yesJournal of Applied Fluid Mechanics, 2018
An experimental study of the subcooled boiling heat transfer of axial and swirling upward flows inside vertical mini annular gaps was conducted using deionized water.
S. Ahangar Zonouzi   +3 more
doaj  

A Review on High‐Temperature Phase‐Change Materials for Waste Heat Recovery: Advances in Materials, System Integration, and Industrial Sustainability

open access: yesAdvanced Energy and Sustainability Research, Volume 7, Issue 6, June 2026.
This review evaluates recent advancements in high‐temperature phase‐change materials for industrial waste heat recovery above 150°C. Analyzing materials like metallic alloys and molten salts, the study demonstrates that optimized integration can increase recovery efficiency by 20%–40%.
Pietropaolo Morrone   +5 more
wiley   +1 more source

Experimental Investigation of Sub-Cooled Flow Boiling in Metallic Microchannel [PDF]

open access: yesEngineering and Technology Journal, 2019
Experiments in microchannel heat sink were carried that examine the deionized water two-phase boiling heat transfer. The heat sink consisted of a single microchannel having 300μm wide nominal dimensions and 300μm height (hydraulic diameter of 300μm). The
Suha mohammed, Ekhlas Fayyadh
doaj   +1 more source

Mathematical analysis of heat balance model for the bubble growth in the subcooled boiling flow

open access: yesCase Studies in Thermal Engineering, 2021
Subcooled boiling flow is a typical phenomenon of a high efficiency of heat transfer in the nuclear reactor. Bubble characteristic sizes are important parameters for the mechanism investigation of subcooled boiling flow.
Xiaomeng Dong   +3 more
doaj   +1 more source

Bubble Collapse in Subcooled Boiling

open access: yesBulletin of JSME, 1972
The motion of a vapor bubble in subcooled boiling was studied experimentally using slightly subcooled water, ethanol, and carbon-tetrachloride under the atmospheric pressure. The degree of subcooling ranged usually from about 2°C to 50°C, and in a few extreme cases it was extended to below 1°C. The experimental data for the collapse stage were found to
openaire   +3 more sources

Experimental Factors and Techniques for Pool Boiling Heat Transfer Enhancement: A Critical Review

open access: yesHeat Transfer, Volume 55, Issue 4, Page 2201-2232, June 2026.
ABSTRACT This review presents a comprehensive assessment of active strategies for enhancing pool boiling heat transfer, with a focus on techniques that do not rely solely on the boiling surface modification. It examines a broad range of methodologies including fluid additives, external fields, mechanical interventions, and thermal‐geometric tuning that
José E. Pereira   +2 more
wiley   +1 more source

Heat Transfer Performance of Biphilic Surfaces With Diatomite‐Based Composite Coatings in a Closed Thermosyphon System

open access: yesHeat Transfer, Volume 55, Issue 3, Page 1608-1638, May 2026.
ABSTRACT This study investigates the thermal performance of innovative biphilic boiling surfaces designed for CPU cooling applications using a two‐phase closed thermosyphon (TPCT) system. The surfaces were fabricated by applying composite coatings—comprising epoxy resin and diatomite particles functionalized with APTES and PFOTS silanes— onto Al1050 ...
José Pereira   +3 more
wiley   +1 more source

Performance Investigation of Eco‐Friendly Refrigerant Mixtures as an Alternative to R134a in Vapour‐Compression Refrigeration System

open access: yesAsia-Pacific Journal of Chemical Engineering, Volume 21, Issue 2, March/April 2026.
ABSTRACT The growing impacts of climate change and energy scarcity demand environmentally sustainable refrigeration solutions. This study investigates eco‐friendly refrigerants (R152a, R290 and R600a) and their optimized ternary mixture as alternatives to R134a. Four blend compositions were analysed using experimental testing and REFPROP 10.0 modelling
M. Periyasamy, P. Senthilkumar
wiley   +1 more source

Heat-transfer characteristics of screw tube in one-side high heat load condition for fusion reactor divertor application

open access: yesInternational Journal of Advanced Nuclear Reactor Design and Technology, 2021
In this study, the heat transfer characteristics of one-side heated screw tubes were analyzed using subcooled flow boiling experiments. The experiments were performed until the critical heat flux was reached, while the applied heat flux was gradually ...
Ji Hwan Lim   +6 more
doaj   +1 more source

Seismo‐Acoustic Evidence for Meteoric Water Modulation of Hydrothermal Fluid Discharge

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.
Abstract Deciphering the signal of external processes on active hydrothermal dynamics represents a critical challenge in understanding volcanic unrest. At the Pisciarelli hydrothermal site, located within the densely populated Campi Flegrei caldera (Italy), we investigate the role of meteoric water influx in modulating shallow hydrothermal fluid ...
Rebecca Sveva Morelli   +23 more
wiley   +1 more source

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