4.5 Article

Numerical Investigations on Heat Transfer Characteristics of Single Particle and Hybrid Nanofluids in Uniformly Heated Tube

Related references

Note: Only part of the references are listed.
Article Thermodynamics

Thermal-electrical-structural performances of hot heat exchanger with different internal fins of thermoelectric generator for low power generation application

Kunal Sandip Garud et al.

Summary: This study conducted a coupled numerical analysis to evaluate the performance of a thermoelectric generator system, comparing heat exchangers with different fin structures. The heat exchangers with inclined and combined fins showed higher net power outputs and efficiencies. The results validated the accuracy of the proposed coupled analysis method.

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY (2021)

Article Thermodynamics

Thermal hydraulic performance for hybrid composition ratio of TiO2-SiO2 nanofluids in a tube with wire coil inserts

W. H. Azmi et al.

Summary: Hybrid nanofluids flows with wire coils improve heat transfer performance, with TiO2-SiO2 nanofluids showing enhanced heat transfer efficiency at specific hybrid composition ratios, achieving optimal performance at R = 0.2 with a pitch ratio of 0.83.

CASE STUDIES IN THERMAL ENGINEERING (2021)

Article Engineering, Chemical

An experimental investigation on the thermo-hydraulic properties of CuO and Fe3O4 oil-based nanofluids in inclined U-tubes: A comparative study

Behnam Habibnezhad Ledari et al.

Summary: The study conducted a comparative experimental investigation on the friction factor and heat transfer of oil-based nanofluids (CuO and Fe3O4 with 0.5%, 1%, and 2% mass concentrations) inside inclined U-tubes. The results showed that using nanoparticles increased the convective heat transfer coefficient, with the best performance observed in 0.5% CuO and 1% Fe3O4 samples.

POWDER TECHNOLOGY (2021)

Article Thermodynamics

Experimental investigation on thermo-physical properties and subcooled flow boiling performance of Al2O3/water nanofluids in a horizontal tube

Sayantan Mukherjee et al.

Summary: In this experimental study, convective flow boiling heat transfer using Al2O3/water nanofluid in a horizontal tube was analyzed. The nanofluids exhibited good stability and enhanced thermophysical properties, resulting in a significant increase in heat transfer coefficient, although it also led to an increase in pressure drop. Performance evaluation criteria showed a 94% improvement in overall thermal performance compared to pure water.

INTERNATIONAL JOURNAL OF THERMAL SCIENCES (2021)

Article Engineering, Chemical

Investigation of boiling heat transfer of titania nanofluid flowing through horizontal tube and optimization of results utilizing the desirability function approach

Manish Dadhich et al.

Summary: An experimental investigation on flow boiling was conducted to examine the heat transfer coefficient of water and water-TiO2 nanofluid. The results showed that the heat transfer coefficient of the nanofluid increased with higher Reynolds number, pressure, and volumetric concentration. The greatest enhancement in heat transfer coefficient was observed at Reynolds number 24,000, concentration 0.20%, and pressure 2.5 bar.

POWDER TECHNOLOGY (2021)

Article Multidisciplinary Sciences

Numerical Simulation of Heat Transfer Flow Subject to MHD of Williamson Nanofluid with Thermal Radiation

Muhammad Amer Qureshi

Summary: This paper discusses the heat transfer and entropy in steady Williamson nanofluid flow based on fundamental symmetry, with a focus on fluid positioned over a stretched flat surface moving non-uniformly. It examines thermal transport properties and the impact of physical parameters on fluid movement, temperature differences, system entropy, skin friction, and Nusselt number, comparing Cu-water and TiO2-water nanofluids. Results indicate that Cu-water nanofluid is a better thermal conductor compared to TiO2-water nanofluid.

SYMMETRY-BASEL (2021)

Article Thermodynamics

Grey relational based Taguchi analysis on thermal and electrical performances of thermoelectric generator system with inclined fins hot heat exchanger

Jae-Hyeong Seo et al.

Summary: In this study, grey relational based Taguchi analysis was used to optimize the thermal and electrical performances of a thermoelectric generator system with an inclined fins hot heat exchanger. The experimentally validated model considered factors like mass flow rate, temperature, design, and gap between fins for optimizing the system. The results showed the specific order of influence of factors on thermal, electrical, and combined thermal-electrical performances, leading to the identification of the optimal combination with the highest performance parameters.

APPLIED THERMAL ENGINEERING (2021)

Article Thermodynamics

Comparative thermal performance analysis with entropy generation on helical screw insert in tube with number of strips with nanofluid at laminar flow regime

Shashank Ranjan Chaurasia et al.

Summary: In the flow of nanofluid, using double strip helical screw inserts in the tube can achieve higher enhancement in Nusselt number and thermal performance factor compared to single strip inserts.

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER (2021)

Article Thermodynamics

Thermohydraulic behavior of concentric tube heat exchanger inserted with conical wire coil using mono/hybrid nanofluids

Sumit Kumar Singh et al.

Summary: The study shows that using a diverging wire coil insert in the concentric tube heat exchanger results in better thermohydraulic performance, and the combination of nanofluids and wire coil inserts shows promising results with a thermal performance factor greater than 1.

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER (2021)

Article Thermodynamics

Experimental investigation on heat transfer of n-decane-ZnO nanofluids in a horizontal tube under supercritical pressure

Zhixiong Han et al.

Summary: The heat transfer characteristics of n-decane with ZnO nanoparticles have been experimentally investigated, showing that nanoparticles mainly influence heat transfer by changing the fluid's thermophysical properties, especially in the pseudo-critical and supercritical zones. Additionally, nanoparticles can postpone temperature increase of Nu number and weaken heat transfer deterioration.

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER (2021)

Article Engineering, Chemical

Entropy generation and exergy efficiency analysis of ethylene glycol-water based nanodiamond + Fe3O4 hybrid nanofluids in a circular tube

B. Saleh et al.

Summary: Experimental results show that the addition of nanodiamond+Fe3O4 hybrid nanofluids can significantly increase thermal conductivity and viscosity, thereby improving heat transfer efficiency. Under the conditions of 0.2% particle loading and 60 degrees Celsius, the entropy generation and exergy efficiency of the hybrid nanofluids are significantly increased.

POWDER TECHNOLOGY (2021)

Article Thermodynamics

Geometry optimization for a rectangular corrugated tube in supercritical water reactors (SCWRs) using alumina-water nanofluid as coolant

Hadi Behzadnia et al.

Summary: A novel rectangular corrugated tube for cooling in supercritical water reactors (SCWRs) was proposed and simulated numerically in this paper. Alumina-water nanofluid was used for cooling in supercritical conditions, with optimized geometry parameters determined through Central composite design and Response Surface Method. The study showed that parameters a and c had significant effects on the Nusselt number, with nanoparticles at phi = 0.01 resulting in the highest Nusselt numbers.

ENERGY (2021)

Article Thermodynamics

Experimental study on cooling performance of nanofluid flow in a horizontal circular tube

C. J. Ho et al.

Summary: This experimental study explores the cooling performance of alumina/water nanofluid flow in a heated copper tube with constant heat flux. Results show that increasing the inlet temperature of fluid and nanoparticles concentration lead to higher heat transfer effectiveness ratio and profit index. Experimental data are in good agreement with theoretical data and numerical results.

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER (2021)

Article Multidisciplinary Sciences

Nanofluids Characterization for Spray Cooling Applications

Miguel Sanches et al.

Summary: This paper investigates the thermal performance of nanofluids in spray cooling applications, focusing on the impact of nanoparticle geometry, concentration, and structure on heat transfer enhancement. The study shows that increasing nanoparticle concentration leads to lower surface temperatures and higher heat fluxes, while also affecting the thermophysical properties of the nanofluids. This research highlights the importance of experimental data in accurately setting model parameters for spray dynamics and heat transfer phenomena.

SYMMETRY-BASEL (2021)

Article Thermodynamics

Computational analysis of hybrid nanofluid enhanced heat transfer in cross flow micro heat exchanger with rectangular wavy channels

Kaouther Ghachem et al.

Summary: The study of hybrid nanofluid enhanced heat transfer in a cross flow micro heat exchanger with rectangular wavy channels reveals that choosing the appropriate flow velocity and nanoparticles volume fraction can reduce the size of the heat exchanger, with the addition of nanoparticles having a significant impact only at high velocities. A trade-off between the relevant controlling parameters is necessary to ensure optimal efficiency.

CASE STUDIES IN THERMAL ENGINEERING (2021)

Article Thermodynamics

Experimental and numerical investigation on the thermal performance of triple tube heat exchanger equipped with different inserts with WO3/water nanofluid under turbulent condition

Arun Kumar Tiwari et al.

Summary: This study investigated a novel design called Triple Tube Heat Exchanger to enhance overall heat transfer and effectiveness by using WO3/water nanofluid and various inserts. The results demonstrated significant thermal performance improvement with rib-type insert in both experimental and computational fluid dynamics methods.

INTERNATIONAL JOURNAL OF THERMAL SCIENCES (2021)

Article Green & Sustainable Science & Technology

Experimental investigation of the usability of the rifled serpentine tube to improve energy and exergy performances of a nanofluid-based photovoltaic/thermal system

Amin Shahsavar et al.

Summary: This experimental study compares the energetic and exergetic performance of a base PVT system with sheet-and-plain serpentine tube collector with two modified PVT systems. It is found that the 6-start rifled PVT system achieved the highest overall energy and exergy efficiency at a flow rate and concentration of 80 kg/h and 2%. The electrical power generated by the different PVT systems also showed significant enhancements compared to the PV module without cooling.

RENEWABLE ENERGY (2021)

Article Green & Sustainable Science & Technology

Assessments of thermal performance of hybrid and mono nanofluid U-tube solar collector system

Erdal Yildirim et al.

Summary: Solar energy systems, especially U-tube solar collectors, play a vital role in water heating and reducing CO2 and SO2 emissions. The study evaluates the thermal performance of a U-tube complete system using different working fluids and heat fluxes. Results show that using nanofluids can significantly enhance the thermal capability of the system, with an improvement of up to 15% compared to water.

RENEWABLE ENERGY (2021)

Review Multidisciplinary Sciences

A Comprehensive Review on Theoretical Aspects of Nanofluids: Exact Solutions and Analysis

Nadeem Ahmad Sheikh et al.

SYMMETRY-BASEL (2020)

Article Energy & Fuels

Thermo-hydraulic performance of nanofluids flow in various internally corrugated tubes

Amr Kaood et al.

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION (2020)

Article Engineering, Chemical

Experimental research on the performance of nanofluid flow through conically coiled tubes

M. M. Heyhat et al.

POWDER TECHNOLOGY (2020)

Article Engineering, Chemical

Enhancing the thermal performance of TiO2/water nanofluids flowing in a helical microfin tube

Budi Kristiawan et al.

POWDER TECHNOLOGY (2020)

Article Energy & Fuels

Effect of twisted turbulator and various metal oxide nanofluids on the thermal performance of a straight tube: Numerical study based on experimental data

Seyfolah Saedodin et al.

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION (2020)

Article Thermodynamics

Experimental and numerical study of heat transfer and friction factor of plain tube with hybrid nanofluids

A. Ramadhan et al.

CASE STUDIES IN THERMAL ENGINEERING (2020)

Article Thermodynamics

CFD analysis of a nanofluid-based microchannel heat sink

Maher A. R. Sadiq Al-Baghdadi et al.

THERMAL SCIENCE AND ENGINEERING PROGRESS (2020)

Article Thermodynamics

Convective heat transfer of molten salt-based nanofluid in a receiver tube with non-uniform heat flux

Zhaoping Ying et al.

APPLIED THERMAL ENGINEERING (2020)

Article Thermodynamics

Experimental Investigation on Absorption Performance of Nanofluids for CO2 Capture

Basavaraj Devakki et al.

INTERNATIONAL JOURNAL OF AIR-CONDITIONING AND REFRIGERATION (2020)

Article Thermodynamics

Experimental investigation of nanoparticle mixture ratios on TiO2-SiO2 nanofluids heat transfer performance under turbulent flow

K. Abdul Hamid et al.

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER (2018)

Article Thermodynamics

Experimental study on thermal conductivity of stabilized Al2O3 and SiO2 nanofluids and their hybrid

Georgiana Madalina Moldoveanu et al.

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER (2018)

Article Thermodynamics

Energy-Economic Analysis of Plate Evaporator using Brine-based Hybrid Nanofluids as Secondary Refrigerant

Atul Bhattad et al.

INTERNATIONAL JOURNAL OF AIR-CONDITIONING AND REFRIGERATION (2018)

Article Thermodynamics

Numerical Study on Geometric Parameter effects of Power Generation Performances for Segmented Thermoelectric Generator

Mahesh Suresh Patil et al.

INTERNATIONAL JOURNAL OF AIR-CONDITIONING AND REFRIGERATION (2018)

Article Thermodynamics

Hybrid nanofluids based on Al2O3, TiO2 and SiO2: Numerical evaluation of different approaches

Alina Adriana Minea

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER (2017)

Review Green & Sustainable Science & Technology

Challenges in hybrid nanofluids behavior in turbulent flow: Recent research and numerical comparison

Alina Adriana Minea

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2017)

Article Thermodynamics

Flow and convective heat transfer characteristics of Fe2O3-water nanofluids inside copper tubes

Bin Sun et al.

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER (2015)

Article Thermodynamics

Effect of Aqueous Suspension of Graphene-Oxide Nanoparticles on Thermal Fluid Flow Transport in Circular Tube

Shuichi Torii et al.

INTERNATIONAL JOURNAL OF AIR-CONDITIONING AND REFRIGERATION (2015)