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160 articles for “heat transfer fluid”
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Recent developments in Nano technology applications in direct absorbing solar collectors: A Review
Abstract: Solar energy harnessing is widely promoted amongst the nations so as to encourage environment conservation. Use of solar energy is very important in the context of global warming and decrease in carbon dioxide generations. Here it becomes important for the researchers to find new methods for optimum utilization of solar energy in collectors by design modifications thereby reducing heat losses along with considering the reductions in high initial costs. Addition …
Published in Journal of Thermal Engineering and Applications · Vol. 8, Issue 2, 2021 · pp. 23–34 Read article
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Theoretical Analysis of Parabolic Trough Solar Water Heater: A Review
Abstract: Abstract Solar radiation is source for all energies on earth. Energy from sun in the form of radiation is primary source for our planet. The average solar energy received at the earth surface in tropical region is nearly 1 kw/m2. It is renewable source of energy and has no effect as pollutant unlike oils, coal, gases etc. on the environment. It is not depleting with respect to time so will …
Published in Journal of Water Pollution & Purification Research · Vol. 4, Issue 2, 2017 · pp. 8–12 Read article
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Enhanced Thermal Conductivity of Polyaniline Nanofluids Synthesized using CuCl2 as Catalyst
Abstract: AbstractThe development of nanofluids for enhancing the heat transfer properties over the conventional fluids is mainly hindered by a vital issue of dispersion stability and hence is being explored in the present work. In the present study, Copper Polyaniline nanoparticle was synthesized by the oxidative polymerization method using CuCl2 as a catalyst. The characterization of Copper Polyaniline was performed. The sizes of nanoparticles were found to be within 7.24 nm …
Published in Journal of Polymer & Composites · Vol. 11, Issue 1, 2023 · pp. 20–40 Read article
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Improved Cooling Effectiveness in Radiators and Heat Exchangers with Nanofluid-Based Technology
Abstract: This study discusses how the process of heat transfer in radiators and heat exchangers can be improved using nanofluids and analysis of computational fluid dynamics. These nanofluids comprise Al₂O₃ and ZnO dispersed in water-based ethylene glycol solutions, and graphene oxide dispersed in water-based solutions, and performance evaluation was done for the range of flow rates 180–420 l/h. And a 3D CAD model was created using the ANSYS Workbench. It was …
Published in Recent Trends in Fluid Mechanics · Vol. 12, Issue 1, 2025 · pp. 31–62 Read article
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Temperature Control of Heat Exchanger using Sliding Mode Control Law
Abstract: Shell and tube heat exchanger system is widely used in chemical plants as it sustains wide range of temperature and pressure. The main purpose of heat exchanger is to transfer heat from a hot fluid to a cooler fluid, so temperature control of outlet fluid is having prime importance. To control the temperature of outlet fluid of shell and tube heat exchanger, a conventional PID controller can be used. But …
Published in Journal of Control & Instrumentation · Vol. 6, Issue 1, 2015 · pp. 14–26 Read article
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Solar Heat Pipe Design and Heat Loss Analysis
Abstract: Abstract: This paper is detailed on the design and heat loss analysis of solar heat pipe. Solar heat pipe is thermal device which use to transfer abundant amount of solar energy to working fluid through very smaller cross section area. Solar heat pipe server so many applications in engineering, i.e., water heating system, aerospace application, refrigeration and air conditioning and process industries. The design of heat tube includes finding diameter …
Published in Journal of Thermal Engineering and Applications · Vol. 6, Issue 1, 2019 · pp. 24–28 Read article
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Investigation of Heat Transfer in Concentric Annuli with Perforated Inserts
Abstract: The increasing necessity for saving energy and material imposed by the diminishing world resources and environmental concerns have prompted the development of more effective heat-transfer equipment with improved heat-transfer rates. The hydrodynamic boundary layer acts as main resistance for the transfer of heat from tube surface to fluid or vice-versa and many researchers are trying to improve the convective heat transfer rate with inserts in tubes to break the boundary …
Published in Journal of Experimental & Applied Mechanics · Vol. 9, Issue 1, 2018 · pp. 56–68 Read article
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Enhanced Heat Transfer in Double Pipe Heat Exchanger with Circular Fins Using Copper Nanofluid and Twisted Tape Inserts: A Computational Study
Abstract: The enhancement of convective heat transfer in a double-pipe heat exchanger utilizing circular finned twisted tape inserts and helical screw-tapes with centre rods, in conjunction with copper oxide nanofluid as the heat transfer medium was studied in this project. Computational Fluid Dynamics (CFD) simulations were conducted across Reynolds numbers ranging from 500 to 5000 to analyse heat transfer characteristics. The investigation focuses on Nusselt number improvement and friction factor analysis …
Published in Journal of Thermal Engineering and Applications · Vol. 12, Issue 1, 2025 · pp. 11–22 Read article
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Parametric Analysis on Pulsating Heat Pipes
Abstract: Day-by-day the size of the electronic components is being drastically decreased, but at the same time the computing capacities are improved manifold. This presents a new challenge in the thermal management of these components. Pulsating Heat Pipes (PHP) can transport warmth for considerable distances leading to placement of condenser away from compact cabinets. From the literature, it is observed that Acetone, Ethanol and Distilled water are the most widely used …
Published in Recent Trends in Fluid Mechanics · Vol. 4, Issue 1, 2017 · pp. 38–43 Read article
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Thermal Engineering: Principles, Evolution, and Comparative Analysis with Classical Approaches
Abstract: Thermal engineering is the study of heat transfer, thermodynamics and energy conversion systems. However, through the years it has progressed from classical theories, which relied on empirical correlations, to enhanced computed and nanotechnology based approaches. This paper highlights the principles of thermal engineering, its important systems and latest developments of thermal engineering and provides extensive comparisons between the classical (traditional) methods and the most recent developments or innovations such as …
Published in International Journal of Mechanical Dynamics and Systems Analysis · Vol. 4, Issue 2, 2026 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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Computational Fluid Dynamics Simulations of Horizontal Wellbore Cleaning and Cement Placement Processes in Drilling and Completions Engineering Applications
Abstract: Mathematical modeling and simulations of complex coupled processes require both robust and accurate physics-based techniques. Computational fluid dynamics (CFD) have been used extensively in a wide range of fields such as aerospace, automotive, and chemical processing industries to name a few. Typically, processes during drilling and completion of wells involve modeling of complex rheology fluids, turbulence modeling, multiphase phenomena, and heat transfer. Each individual process could possibly result in a …
Published in Journal of Petroleum Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 26–39 Read article
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Performances of NH3-H2O Vapour Absorption Refrigeration Cycles
Abstract: To achieve vital enhancements on micro-scale to buildings, cooling, heating and power systems for residential and light-weight industrial buildings, absorption cooling technology gift a chance. Their resultant effects are effective, energy economical and economical recent developments in. This study thus contributes a vital information and methodology within the development, fabrication and application of an absorption icebox as a higher various to the normally used mechanical device refrigerators. 2 fluid gas …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 6, Issue 1, 2019 · pp. 9–13 Read article
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Cu-H2O Nano-Fluid Effect on Buoyancy Driven Flow in 2D Enclosure
Abstract: System miniaturization resulting in exponential increase of the heat in electronic devices, to serve this purpose we need some adequate quality heat cooling devices and materials, due to the limitation of conventional cooling process. Suspension of nano-particles in the base fluid called nano-fluid, shows prominent increase in the heat transfer and can be one of appropriate option which can be answer to this problem. Present work deals with numerical simulation …
Published in Journal of Thermal Engineering and Applications · Vol. 4, Issue 2, 2017 · pp. 1–7 Read article
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Experimental Analysis on Longitudinal Finned Tube Heat Exchanger and Numerical Investigation on Parameters that Accrue the Overall Heat Transfer Coefficient
Abstract: The presence of nanofluids ascertained great augmentation in heat transfer. Several works have been done so far to parameterize the properties of nanofluid in relation to augmentation of heat transfer. In conjunction to this, the present work focuses on heat transfer within a longitudinal finned tube heat exchanger with simulated employment of nanofluids. Experimentation is done on longitudinal finned tube heat exchanger and the results were compared with numerical simulations …
Published in Journal of Thermal Engineering and Applications · Vol. 3, Issue 1, 2016 · pp. 29–41 Read article
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Effect MFD Viscosity on Bénard–Marangoni Ferroconvection in a Rotating Ferrofluid Layer with Convective Surface Boundary Condition
Abstract: AbstractThe combined effect of Coriolis force due to rotation and magnetic field dependent (MFD) viscosity on the onset of Bénard–Marangoni convection in a horizontal layer of ferrofluid is investigated theoretically. The lower boundary is taken to be rigid–isothermal, while the upper free boundary open to the atmosphere is flat and subject to a convective surface boundary condition. The Galerkin technique is employed to extract the critical stability parameters numerically. It …
Published in Recent Trends in Fluid Mechanics · Vol. 7, Issue 2, 2020 · pp. 12–32 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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A Review on Nanofluids: Preparation and Applications
Abstract: Nanofluids are essential because they improve heat transfer. Nanofluids are colloidal combinations of ceramic particles or nanometric metallic in a base fluid, such as ethylene glycol, water or oil. Nanofluids possess huge potential to increase the heat transfer character of the original liquid due to enhanced thermal transport properties. nanoparticles have been utilized in transmission oil, radiator coolant and engine oil to increase heat transfer removal from automobile engine. Specific …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 21, Issue 1, 2019 · pp. 21–35 Read article
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Optimization of Procedure and Variables of a Double Pipe Composite Heat Exchanger with Protruding Surfaces
Abstract: Under low heat duty conditions, double pipe heat exchangers are employed. When utilized for heavy-duty tasks, they show limitations. To use double pipe heat exchangers for heavy-duty applications, heat transmission needs to be increased. In this project, we are investigating the optimization process parameters of a twin pipe heat exchanger with and without protruding surfaces. In both cases, the inner and outer tubes are composed of steel, and the working …
Published in Journal of Polymer & Composites · Vol. 13, Issue 3, 2025 · pp. 472–485 Read article
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Particle Concentration Effect on Thermal Properties of Nano-fluids
Abstract: AbstractWith the advancement of time and system miniaturisation, requirement of high thermal capacity material is increasing. This problem can be served by nano-fluids as they have high thermal conductivity compared to the conventional materials. Nano-fluids are the suspension of solid nano-particles in the base-fluid. Water (H2O) is considered as the base-fluid in the present work while Al2O3, Cu, TiO2, SiC and B4C are considered as nano-particles. Two-phase mixture rule and …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 19, Issue 2, 2017 · pp. 18–21 Read article