Results 71 to 80 of about 34,329 (324)

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

Engineering 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

Sustainable Thermal Solutions: Enhancing Heat Transfer with Turbulators and Nanofluids

Advanced Energy and Sustainability Research, Volume 6, Issue 5, May 2025.
Nanofluids, which are nanoparticle suspensions in base fluid, facilitate heat transmission due to their improved thermal conductivity. Turbulators, which are inserts into fluid flow channels, disturb the flow, increasing turbulence and hence the heat transfer rate.
Zafar Said, Aggrey Mwesigye, Lingala Syam Sundar, Arun Kumar Tiwari, Kalidasan Balasubramanian, Hafiz Muhammad Ali, Evangelos Bellos, Chaerin Gim, Mohammad Shamsuddin Ahmed, Jang‐Yeon Hwang   +9 more
wiley   +1 more source

An investigation on hydrate prediction and inhibition: An industrial case study

The Canadian Journal of Chemical Engineering, Volume 103, Issue 1, Page 396-409, January 2025.
Abstract This investigation reports the first study to predict natural gas hydrate formation using both Aspen HYSYS® and HydraFlash software for various gas compositions and thermodynamic inhibitors (monoethylene glycol [MEG] concentrations at 10, 20, 30, and 40 wt.% and methanol concentrations at 10 and 20 wt.%). The simulated predictions are compared
Nejat Rahmanian, Nejmi Söyler, Farai Munashe Wande, Hamed Hashemi   +3 more
wiley   +1 more source

Emerging Passive Cooling Technologies and Their Multidisciplinary Applications: An Integrative Review

International Journal of Energy Research, Volume 2025, Issue 1, 2025.
The persistent rise in temperature driven by the emission of greenhouse gases presents a pressing contemporary challenge, fostering innovative cooling techniques. Currently, passive cooling technologies have gained attention in various research fields for their effectiveness in combating heat accumulation. Compared to traditional active cooling methods,
Xhamla Nqoro, Raymond Taziwa, Thabo Hasheni, Solomon Giwa, Saleh N. Al-Saadi   +4 more
wiley   +1 more source

Numerical investigation of flow and heat transfer characteristics of subcooled boiling in a single rod channel with/without spacer grid

Case Studies in Thermal Engineering, 2020
A multiphase flow numerical model based on Eulerian is built to simulate the characteristics of subcooled boiling. The thermodynamic performance in a single rod channel with/without spacer grid are obtained by numerical simulation, and the influence of ...
Ting Zhang, YingWen Liu
doaj   +1 more source

Forced convection boiling near inception in zero-gravity [PDF]

Forced-convection boiling at low heat flux and flow velocities in zero gravity for slightly subcooled distilled ...
Cochran, T. H.
core   +1 more source

Full‐Range Drift–Flux Correlation for Upward Cocurrent Two‐Phase Flows in Vertical Pipes

International Journal of Energy Research, Volume 2025, Issue 1, 2025.
In nuclear thermal–hydraulic analysis, the void fraction prediction for upward two‐phase flows in vertical pipes is essential. The two‐fluid model is used as a platform for one‐dimensional (One‐D) nuclear thermal–hydraulic system analysis codes since it can treat the kinematic and thermal nonequilibrium between phases through interfacial transfer terms.
Takashi Hibiki, Chuanshuai Dong, Naofumi Tsukamoto, Nagaraj Nandihalli   +3 more
wiley   +1 more source

Numerical Investigation of Heat Transfer and Pressure Drop in Partially Twisted Five‐Lubed Tube With Al2O3 Nanofluid

International Journal of Energy Research, Volume 2025, Issue 1, 2025.
This study examines the heat transfer and pressure drop characteristics of water/aluminum oxide (Al2O3) nanofluid flow in a semi‐twisted tube within solar collector systems. The investigation focuses on the influence of varying nanofluid concentrations and twisted tube lengths on thermal performance and friction factor.
Hamed Najafpoursani, Mohammad Reza Khoshravan Azar, Amir Najafpoursani, Seyed Morteza Javadpour, Arun Thirumurugan   +4 more
wiley   +1 more source

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

Applied 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

Void fraction thermo-kinematics for subcooled flow boiling

Physics of Fluids, 2022
This work presents some preliminary results about a new void fraction model in subcooled flow boiling based on brand new mass and energy balances developed by the author over the past years. As main novelties, the new mass balance is based on the liquid velocity and the mixture specific volume, whereas the new heat balance is a function of the mixture ...
openaire   +3 more sources