Results 61 to 70 of about 360 (182)

Gas–Liquid Two-Phase Boiling Heat Transfer Mechanism in Cooling Water Jacket of Intense Thermal Load Engine and Its Improvement

open access: yesApplied Sciences
The results show that the numerical simulation error based on the RPI two-phase boiling heat transfer model is less than 5%, which is in good agreement with the test results.
Gangzhi Tang, Chaojie Yuan
doaj   +1 more source

Experimental study of bubble flow behavior during flow instability under uniform and non-uniform transverse heat distribution

open access: yesNuclear Engineering and Technology, 2020
Experiments are conducted to study bubble flow behavior during the instability of subcooled boiling under uniform and non-uniform transverse heating. The non-uniform heat distribution introduces non-uniform bubble generation and condensation rates on the
Omar S. Al-Yahia   +2 more
doaj   +1 more source

Exploring Low‐Global Warming Potential Refrigerants for Medium‐Charge Systems

open access: yesEnergy Technology, Volume 13, Issue 9, September 2025.
This study evaluates 15 low‐global warming potential (GWP) refrigerants as alternatives for medium‐charge systems, focusing on environmental impacts, operational performance, and system design integration. Key findings reveal R‐447A's suitability for standard climates and R‐454B's advantages in high ambient conditions, providing actionable guidance for
Fadi Alsouda   +3 more
wiley   +1 more source

Coupled heat and mass transfer simulation of CRUD migration and deposition in PWR systems

open access: yesNuclear Engineering and Technology
In Pressurized Water Reactors (PWRs), corrosion products are released during operation due to the large contact area between the primary circuit coolant and the equipment materials.
Xuesong Li   +5 more
doaj   +1 more source

Analysis of flow boiling heat transfer in narrow annular gaps applying the design of experiments method

open access: yesAdvances in Mechanical Engineering, 2015
The axial heat transfer coefficient during flow boiling of n -hexane was measured using infrared thermography to determine the axial wall temperature in three geometrically similar annular gaps with different widths ( s  = 1.5 mm, s  = 1 mm, s  = 0.5 mm).
Gunar Boye   +2 more
doaj   +1 more source

Interfacial Heat Transfer of Condensation Bubble with Consideration of Bubble Number Distribution in Subcooled Flow Boiling

open access: yesJournal of Thermal Science and Technology, 2013
For predicting the void fraction distribution in subcooled flow boiling, it is necessary to measure the interfacial heat transfer coefficient—which determines the amount of condensation rate of vapor bubble—with high accuracy.
Noriaki INABA   +2 more
doaj   +1 more source

Numerical simulation of subcooled boiling in a vertical pipe with twisted tape inserts [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2015
Subcooled flow boiling occurs in many industrial applications and it is characterized by a large heat transfer coefficient. In this paper, numerical simulation of subcooled flow boiling in a vertical pipe is investigated by ANSYS CFX 14.
Hossein Kazeminejad, Mehdi Tafreshi
doaj  

Numerical modelling of conjugate heat transfer in force convective flow environment using a combined boiling model (CBM)

open access: yesResults in Engineering
Subcooled flow boiling is a crucial heat transfer mechanism in which the fluid temperature exceeds its saturation point, leading to phase change. Computational Fluid Dynamics (CFD) is a powerful tool for investigating such phenomena.
Jure Štrucl, Jure Marn, Matej Zadravec
doaj   +1 more source

Implementation of the mechanistic wall boiling model in IC engine cooling gallery simulation

open access: yesMATEC Web of Conferences, 2018
The ever increasing power rates of modern IC engines pose a great challenge for maintaining the optimal temperature conditions. The current trend in the thermal management of IC engines is to utilize the limited and controlled nucleate boiling to achieve
Abyzov Oleg   +2 more
doaj   +1 more source

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