Thermohydraulic analysis of covalent and noncovalent functionalized graphene nanoplatelets in circular tube fitted with turbulators [PDF]
Scientific Reports, 2022 Covalent and non-covalent nanofluids were tested inside a circular tube fitted with twisted tape inserts with 45° and 90° helix angles. Reynolds number was 7000 ≤ Re ≤ 17,000, and thermophysical properties were assessed at 308 K.
Hai Tao +9 more
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Fluid–structure interaction and thermal performance: a numerical study on crossflow heat exchangers with aerodynamically optimised splitter elements [PDF]
Scientific ReportsThe thermohydraulic performance of backwards-facing splitter plates with different L/D ratios in a crossflow heat exchanger under fully developed turbulent flow at Reynolds numbers between 5500 and 14,500 is examined numerically in this study.
Sachin Kaushik +7 more
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Study on variation characteristics of shear strength of deep-sea sediments in the South China sea under thermo-hydraulic coupling [PDF]
Scientific ReportsTo investigate the mechanical response mechanisms of deep-sea sediments in the South China Sea under coupled field effects, this study systematically analyzed the influence of moisture content (15%-35%), temperature (4℃-60℃), and confining pressure (100 ...
Yan Feng +8 more
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Optimized design on the thermohydraulic performance of the helical coil heat exchanger
International Journal of Thermofluids, 2023 The helical coil heat exchanger (HCHX) is one of the most popular heat transfer devices in heat pump water heaters. In this study, the Computational Fluid Dynamics (CFD) software, ANSYS FLUENT, was employed to predict the thermohydraulic performance of ...
Yang-Cheng Shih +2 more
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Impact of variable porosity models on the safety of high temperature pebble bed gas-cooled reactors
Brazilian Journal of Radiation Sciences, 2021 The Very High Temperature Reactor (VHTR) is one of the candidates of next generation of the nuclear reactors according to IAEA. Predicting the thermohydraulic behavior of High Temperature Reactors (HTR) is an important contribution to the development of ...
ABEL GÁMEZ RODRÍGUEZ +5 more
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Heat Transfer Slot Matrix for Compact Rotary Heat Exchangers with Ultra-High Regeneration Ratio for Microturbines [PDF]
Problems of the Regional Energetics, 2023 This paper considers the problem of the influence of distancing elements in slot matrix channels on the thermohydraulic characteristics of the matrix of a rotary heat exchanger having various values of the height of the slot channels. The following tasks
Kostyukov A. V., Kosach L. A.
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Investigation of the small break conditions in the primary circuit of a VVER-1000 reactor [PDF]
Nuclear Energy and Technology, 2019 Modes with violation of the reactor plant cooling conditions on the primary circuit side of a VVER reactor were simulated using the TRAC-PD2 and Open FOAM thermohydraulic codes (TRAC-PD2 1981, OpenFOAM User Guide Version 1.6.
Vladimir I. Belozerov +2 more
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Effect of Novel Stepped Airfoil Fin Inserts on Heat Transfer Enhancement and Fluid Flow Characteristics of Printed Circuit Heat Exchanger [PDF]
Journal of Applied Fluid MechanicsIn recent years, researchers have shown considerable interest in supercritical carbon dioxide (sCO₂) Brayton cycle-based power plants due to their unique characteristics and higher efficiency compared with conventional Rankine cycle systems.
A. P. Raji +3 more
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Case Studies in Thermal Engineering, 2021 Experiments were performed to study the thermohydraulic behaviors of heating tubes equipped with serrated-ring bundles as turbulators. Their thermohydraulic characteristics are reported in terms of Nusselt numbers (Nu) and friction factors (f) as well as
M. Pimsarn +5 more
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Nuclear Engineering and Technology, 2019 To accurately analyze the accidents in nuclear reactors, a thermohydraulic-neutronic coupling calculation is required to solve fluid dynamics and nuclear reactor kinetics equations in fine cells simultaneously and evaluate the local effects of neutronic ...
M. Ahmadi, A. Rabiee, A. Pirouzmand
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