Results 51 to 60 of about 633 (174)

A Novel Tubular Solar Air Heater With Internal Plates: A CFD Study on Segregated Impingement Flow

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
This paper presents a numerical analysis of a novel and efficient solar air heater (SAH) designed with an integrated impingement‐return configuration to enhance thermal performance. The system consists of nine blackened copper tubes where incoming air first passes through the lower half of each tube. At the far end, the flow reverses direction in a 180°
S. A. Gandjalikhan Nassab, Fatemeh Boshagh   +1 more
wiley   +1 more source

A New Mathematical Model for Flow and Heat Transfer of Dual‐String Steam Injection in SAGD

Geofluids, Volume 2026, Issue 1, 2026.
Uneven steam distribution along horizontal wellbores, particularly the disparity between the heel and toe, poses a significant challenge in steam injection for heavy oil recovery. This often leads to asymmetric steam chamber development and premature steam channeling, severely limiting process efficiency.
Qiuying Du, Lili Cao, Wenfang Song, Mengyun Zhao, Hang Xu, Chuxiao Miao, Qingjun Du, Pramita Mishra   +7 more
wiley   +1 more source

Analysis and optimization of a liquid-vapor thermohydraulic model

ESAIM: Proceedings and Surveys
This work presents a simplified model of compressible multiphase fluid flow in a heated porous medium. We first introduce the model and its numerical approximation using a linearized implicit finite volume scheme. We then propose a technique to accelerate the implicit scheme through a machine learning approach.
Helluy, Philippe, Lazare, Gauthier
openaire   +2 more sources

Analysis of Temperature and Displacement Fields in the Freeze Construction of Overlapping Cross‐Passages Within Water‐Rich Sand Layers

Geofluids, Volume 2026, Issue 1, 2026.
In the construction of an F‐type cross‐passage in an overlapping‐type shield tunnel using the artificial ground freezing method, the development of the distal frozen wall is difficult to control, and ground deformation is influenced by the superimposed disturbance of successive construction steps. Existing studies are insufficient to fully characterize
Jinlei Li, Zixuan Zhang, Xueqing Xu, Gan Cheng, He Yongliang   +4 more
wiley   +1 more source

Numerical Investigation of Heat Transfer Rate Improvement in Heat Exchangers Utilizing Innovative Wavy Vortex Generators

Modelling and Simulation in Engineering, Volume 2026, Issue 1, 2026.
Quick‐cooling heat exchangers are used for a wide range of industrial applications. This study is aimed at employing the wavy surfaces of the vortex generators to reduce pressure drops and enhance heat transfer performance. The turbulent conditions for mixture (water and air) flow with Rew = 3500–5000.
Adnan Q. Ibrahim, Riyadh S. Alturaihi, Dimitris Drikakis   +2 more
wiley   +1 more source

Augmentation of thermohydraulic performance in a dimpled tube using ternary hybrid nanofluid

European Mechanical Science
This computational study explores the thermal and hydraulic efficiency of heat exchanger tube configurations utilizing hybrid nanofluids and circular dimples.
Orhan Keklikcioğlu
doaj   +1 more source

Influence of Layering and Curie Temperature Uncertainty on the Performance of Multilayer Active Magnetic Regenerators

Advanced Functional Materials, Volume 35, Issue 52, December 23, 2025.
This study examines how manufacturing uncertainties in Curie temperatures (1.5–2°C) affect multilayer active magnetic regenerators (AMR). While increasing the number of magnetocaloric layers boosts cooling power, performance degrades due to temperature variations.
Urban Tomc, Guilherme F. Peixer, Christian R. H. Bahl, Kaspar K. Nielsen, Jaime A. Lozano, Jader R. Barbosa, A. Kitanovski   +6 more
wiley   +1 more source

Analysis of air impact on aircraft engine lubrication system performance

Авіаційно-космічна техніка та технологія
A distinctive feature of an aircraft gas turbine engine (GTE) oil system is that an oil-air mixture, rather than pure oil, circulates through almost all of its components.
Taras Mykhailenko, Oleksandr Goridko, Illia Petukhov   +2 more
doaj   +1 more source

Thermohydraulic modeling and simulation of breeder reactors [PDF]

, 1982
This paper deals with the modeling and simulation of system-wide transients in LMFBRs. Unprotected events (i.e., the presumption of failure of the plant protection system) leading to core-melt are not considered in this paper. The existing computational capabilities in the area of protected transients in the US are noted. Various physical and numerical
Agrawal, A. K., Khatib-Rahbar, M., Curtis, R. T., Hetrick, D. L., Girijashankar, P. V.   +4 more
openaire   +2 more sources

Systematic Review of Flat Plate Photovoltaic Thermal Systems: Components, Efficiency, Monitoring, and Artificial Intelligence

Energy Technology, Volume 13, Issue 11, November 2025.
This article presents a review of flat‐plate hybrid solar panels, focusing on four key aspects: system components, parameters affecting efficiency, monitoring, and applications of artificial intelligence. The use of hybrid solar panels represents a promising technology for the simultaneous generation of electrical and thermal energy from solar ...
Amy Zulema Velasco Bonilla, Luis Hernández‐Callejo, Alberto Redondo‐Plaza, Karen Paola Koh Martin, Víctor Alonso Gómez, Carlos Enrique Torres Aguilar, Angel Zorita Lamadrid, Alejandro del Amo Sancho, Ali Bassam   +8 more
wiley   +1 more source