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41 articles for “Thermal hydraulics”
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Thermal-hydraulic Safety Assessment of a Miniature Neutron Source Reactor
Abstract: The main objective of this study is to assess the thermal-hydraulic safety capability of the PLTEMP/ANL v 4.0 in analyzing Ghana Research Reactor-1 (GHARR-1), with vertical fuel rods cooled by natural convection, operating at a nominal power (30 kW) with sufficient safety margins. The neutronic analysis of the core was performed using MCNP X code, where parameters of interest were the power distributions and the power peaking factors. The thermal-hydraulic …
Published in Journal of Nuclear Engineering & Technology · Vol. 3, Issue 3, 2013 · pp. 18–44 Read article
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Challenges In Sodium Cooled Fast Reactor Thermal Hydraulics
Abstract: Heat Transfer and Fluid flow phenomena (referred as Thermal Hydraulics) play a significant role in the safe and economical design of fast breeder reactors (FBR). The sodium cooled fast reactors have a very complex flow and temperature profile within the pool or the test vessel. The high temperature operating conditions (~540 deg.C) also impose stringent requirements on the thermal design of the components. The basic approach of thermal hydraulic design …
Published in Journal of Nuclear Engineering & Technology · Vol. 12, Issue 2, 2022 · pp. 33–47 Read article
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Correlations for some Thermal Hydraulic Parameters for a Pressurized Water Reactor
Abstract: Pressurized Water Reactor (PWR) constitutes majority of nuclear power plants used worldwide because of its stability which enhances operability. However, the design and safe operation of the PWR is dependent on certain thermal hydraulic parameters such as friction factor and heat transfer. In this study, therefore the correlations for the calculation of the two important thermal hydraulic parameters are presented. Correlations used include: Dittus-Boelter and Chilton-Colburn for heat transfer, Blasius …
Published in Journal of Nuclear Engineering & Technology · Vol. 6, Issue 1, 2016 · pp. 1–10 Read article
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Study on Effect of Insulation Design on Thermal-Hydraulic Analysis: An Important Aspect in Subsea Pipeline Designing
Abstract: The most imperative and challenging operational hazards for oil and gas pipelines are the risks associated with the transportation of fluids. When water, oil and gas flow simultaneously inside the pipeline, there are quite high chances that, water and hydrocarbon fluids can form and deposit hydrate such as wax and asphaltene on the inner surfaces of the pipeline and gradually blocking it. In this paper we explore and compare the …
Published in Journal of Petroleum Engineering & Technology · Vol. 4, Issue 1, 2014 · pp. 33–44 Read article
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Thermal-hydraulic Behaviour of Corrugated Pipe Configurations
Abstract: Heat exchangers have a wide range of applications and can be found in a variety of different industries, including chemical reactors, nuclear power plants, and solar energy generation. It is required to do thermal optimization on heat exchangers in order to decrease the size, cost, and energy requirements of the heat exchangers while simultaneously improving their capacity to transmit heat. In these types of businesses, heat exchangers frequently make use …
Published in Journal of Polymer & Composites Read article
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Development of a Steady State Temperature Distribution Code (STD 1.0) for Predicting Thermal-Hydraulics Parameters of MNSR
Abstract: A steady-state temperature distribution code has been developed using Visual Basic 6.0 programming language for the estimation of steady-state temperature distribution in an averaged fuel element of Miniature Neutron Source Reactor. The STD 1.0 code is composed of three parts: Main Menu Window which shows the title of the code, picture of the Nigeria Research Reactor-1 in operation and the link to the other two windows; Radial Temperature Distribution Window, …
Published in Journal of Nuclear Engineering & Technology · Vol. 3, Issue 2, 2013 · pp. 1–13 Read article
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An Introduction of Computational Fluid Dynamics Methods and Frameworks
Abstract: The theoretical fluid dynamics code is used to model the primary natural circulation loop of the proposed small modular reactor for reference to experimental evidence and best-estimated thermal-hydraulic code performance. Latest developments in computational fluid dynamics code simulation capabilities allow them desirable alternatives to the existing cautious method coupled to best guess thermal hydraulic codes and ambiguity assessments. The findings of the numerical fluid dynamics study are compared to the …
Published in Journal of Aerospace Engineering & Technology · Vol. 10, Issue 3, 2020 · pp. 19–23 Read article
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Hydraulic and Thermal Performances of a Counter-Flow Heat Exchanger with Fins
Abstract: Computational analysis has been conducted to examine the flow and heat transfer characteristics in a two-dimensional iso-thermal-fluxed circular-duct fitted with fins. The computations are based on finite volume methods employed with the simple algorithm. Paper reports are based on the computational fluid dynamics (CFD) modelling studies on laminar flow heat transfer, friction factor and thermal performance of a counter-flow heat exchanger equipped with two types of tube insert, one including …
Published in Journal of Thermal Engineering and Applications · Vol. 2, Issue 3, 2015 · pp. 14–20 Read article
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Numerical Analysis of Thermal Performance of Cylindrical Perforated Pin Fins for Aligned Arrangement
Abstract: Present paper investigates the thermal characteristics pertaining to laminar forced convection heat transfer enhancement achieved in a flat surface mounted with cylindrical perforated pin fins in a rectangular channel having a area of cross section 280 x150 mm2.The analysis was done for the range of angle of perforated holes from 00 to 600 for a constant value of Reynolds Number and fixed fin spacing of 40 mm using air as …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 7, Issue 1, 2020 · pp. 8–16 Read article
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Influence of Epoxy-Based Thermally Conductive Polymer Composites on the Thermo-Hydraulic Performance of Finned Helical Coil Heat Exchangers Across Flow Regimes
Abstract: The use of polymer composites in heat exchanger applications has gained increasing attention due to their advantages in weight reduction, corrosion resistance, and design flexibility. However, their relatively low thermal conductivity compared to conventional metallic materials remains a key limitation for efficient heat transfer. In this study, the thermo-hydraulic performance of a finned helical coil heat exchanger is investigated with particular focus on epoxy-based polymer composites reinforced with thermally conductive …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 586–602 Read article
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Numerical Model for Water Hammer in Homogeneous Equilibrium Two Phase Fluid
Abstract: Generally, water hammer can occur in any thermal-hydraulic systems. Rapid closing or opening of a valve causes pressure transients due to the sudden transformation of kinetic energy into the potential energy. The resulting high pressure surge upstream of the valve leads to the temporary increase in pressure. If the increased pressure surpasses the safety margin for the pipe, it can lead to failure of the pipeline. A mathematical model is …
Published in Journal of Nuclear Engineering & Technology · Vol. 4, Issue 3, 2014 · pp. 29–43 Read article
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Thermo-hydraulic Performance of Multi-Pass Double-Pipe Heat Exchangers: Integrating Polymer Composite Tube Wall Materials via CFD Parametric Study and Experimental Validation
Abstract: Metallic materials such as steel and copper have traditionally dominated heat exchanger manufacturing because of their excellent thermal conductivity, mechanical strength, and long-established industrial reliability. However, their high weight, susceptibility to corrosion in aggressive operating environments, and inability to provide tunable thermal properties have motivated interest in alternative materials for next-generation thermal systems. Thermally conductive polymer composites reinforced with graphene nanoplatelets (GNP), boron nitride (BN), and carbon-based fillers offer an …
Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 Read article
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Thermo-hydraulic Performance of Annular-Finned Double-Pipe Heat Exchanger: Numerical and Experimental Investigation of Metallic and Polymer Composite Tube Wall Materials
Abstract: Double-pipe heat exchangers are central to the process industries — dependable, easily maintained, and straightforward to fabricate. Their conventional form relies on metallic tube materials, most often copper or stainless steel. Both metals conduct heat well, but they are dense, prone to corrosion in aggressive service environments, and increasingly at odds with the light-weighting goals that drive modern system design. Fibre-reinforced polymer composites, epoxy-based materials, and thermally enhanced thermoplastics such …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 891–909 Read article
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Composite Fluid Hydraulic Lift
Abstract: In the industrial application hydraulic lifts have a variety of applications on a massive scale. As the energy resources required for the operation are relatively high as compared to the output provided by lifts, there is a alarming rate to optimize the process. So to bridge the gap we have come up with a innovative and exclusive fabrication of the hydraulic lift systems based on the use of Composite Fluids …
Published in Recent Trends in Fluid Mechanics · Vol. 8, Issue 1, 2021 · pp. 15–21 Read article
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Composite Fluid Hydraulic Lift
Abstract: In the industrial application hydraulic lifts have a variety of applications on a massive scale. As the energy resources required for the operation are relatively high as compared to the output provided by lifts, there is an alarming rate to optimize the process. So, to bridge the gap we have come up with an innovative and exclusive fabrication of the hydraulic lift systems based on the use of Composite Fluids …
Published in Recent Trends in Fluid Mechanics Read article
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Experimental Investigation of Heat Transfer Enhancement Using Cross Inserts Having Different Pitch Rectangular Cuts
Abstract: This work presents experimental investigation of heat transfer enhancement using strip insert with cross configuration having rectangular cut. The heat transfer enhancement study in a circular copper tube of 10 mm internal diameter is carried out using three different inserts. The three inserts are of cross configuration with rectangular cuts of different pitches. The heat transfer enhancement in hydro-dynamically developed and thermally developing fluid region is studied. It is found …
Published in Journal of Thermal Engineering and Applications · Vol. 1, Issue 2, 2014 · pp. 1–6 Read article
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Management of Domestic Water Closed Loop System
Abstract: The paper describes a new technological process to reuse, thermally and hydraulically, the water inhome installations. The aim of the process is to reduce water wasting and take advantage of residualthermal energy to minimize energy expenditure. The system is especially developed for homeinstallations although it is also suitable for larger facilities. Filtering processes based on porous mediaensure the physical and chemical water quality while chlorination or disinfection by ultravioletradiation guarantees …
Published in Journal of Water Resource Engineering and Management · Vol. 10, Issue 3, 2023 · pp. 12–22 Read article
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Experimental Study on Heat Transfer Enhancement in a Mini Channel Heat Sink Using Al2O3/Water Nanofluid
Abstract: In this present work, experimental investigation of heat transfer enhancement using Al2O3/water nano fluid in a mini channel heat sink is carried out. Efforts have been undertaken to explore the forced convective heat transfer performance of Al2O3/water nanofluid having 0.1% volume fraction of Al2O3 as the coolant in a copper mini channel heat sink. The mini channel heat sink fabricated consists of 15 parallel rectangular mini-channels of length 50mm with …
Published in Journal of Thermal Engineering and Applications · Vol. 1, Issue 2, 2014 · pp. 29–38 Read article
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Design Fabrication and Testing of Hydraulic Oil Cooler by Using Heat Pipe
Abstract: Heat pipe is an essentially passive heat transfer device having high thermal conductivity. In hydraulic power pack use of traditional shell and tube heat exchanger would require lot of space, more power and maintenance cost. So heat pipe device is easily implemented for cooling of hydraulic oil. The heat pipe equipped hydraulic oil cooler uses a heat pipe module comprises of aluminum base block with oil channels machined on it. …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 5, Issue 1, 2018 · pp. 10–19 Read article
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Thermo-Hydraulic Enhancement of Annular Finned Shell-and-Tube Heat Exchangers Using Epoxy-Based Polymer Composites: A Material–Geometry Coupled CFD Investigation
Abstract: Shell-and-tube heat exchangers remain a backbone of industrial thermal systems, yet their performance is often limited by relatively low shell-side heat transfer and the weight and cost associated with conventional metallic components. In this context, the integration of polymer composite materials offers a promising pathway toward lightweight, corrosion-resistant, and performance-tunable heat exchanger designs. The present study investigates the thermo-hydraulic performance of a straight-tube shell-and-tube heat exchanger equipped with annular fins, …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 669–684 Read article