The role of nanofluids and fins in a heat exchanger on waste energy recovery from a diesel engine: An experimental and numerical study

Gholizadeh, Aliakbar; Pourfallah, Mohsen; Gholinia, M.; Armin, Mahbod; Languri, Ethan

doi:10.1016/j.egyr.2022.10.009

Cited by 16 publications

(4 citation statements)

References 35 publications

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“…Nanotechnology played an important role in various applications, especially the huge systems like nuclear reactors in their cooling [75,76]. Recently modern military radars applied nanotechnology in the cooling system of the radar, and found that the efficiency of the waste heat recovery heat exchanger increased for nanofluids, that huge among of heat can be calcified as pollution, therefore, many researchers and environmental activists trying to reduce and minimize thermal pollution and recover the energy waste [77][78][79].…”

Section: Applications Of Nanofluidsmentioning

confidence: 99%

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Numerical and Experimental Studies of the Nanofluid Characteristics that Effects on Heat Transfer Enhancement: Review and Comparison

Hashim Alsammarraie,

Mohd Khairol Anuar Mohd Ariffin,

Eris Elianddy Supeni

et al. 2023

ARFMTS

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This review describes and compare the recent studies for numerical and experimental researches in the improvement of Nanofluid on flow, thermal conductivity, and heat transfer for various heat exchanger applications. The Nanofluid consists of two parts which are nanoparticles and base fluid. This study investigated nanoparticles' and base fluid's effects separately—the main preparation techniques and latest heat exchanger applications that used nanofluid technology, which has been touched upon. Nanofluid technology is one of the hot topics and high Impact that researchers have worked on in the latest decades. Therefore, this review paper investigated and collected the data from the latest results in this area based on nanofluid characteristics and effects of particle material, volume concentration, particle size, particle shape, fluid temperature, acidity, magnetic field, and electrical pulsing individually. Many recent studies were recast using a common parameter to settle comparisons of data between the research group in the same study and conditions to identify its thermal enhancement. The latest trends of nanofluid technology have been stated in this research alongside the recommendations for future studies that present the leaks in each area of study. Heat transfer enhancement has been increased in different nanofluids, metallic, non-metallic, organic, inorganic and hybrid, by up to 300%.

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Section: Applications Of Nanofluidsmentioning

confidence: 99%

“…The heat transfer in heat exchanger channels represents energy transportation along the channel. In general, there are three types of flows in heat exchanger channels: laminar, transition, and turbulent [38,79]. These flows Reynold's number can be calculated by:…”

Section: The Heat Transfer In Nanofluidsmentioning

confidence: 99%

Numerical and Experimental Studies of the Nanofluid Characteristics that Effects on Heat Transfer Enhancement: Review and Comparison

Hashim Alsammarraie,

Mohd Khairol Anuar Mohd Ariffin,

Eris Elianddy Supeni

et al. 2023

ARFMTS

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“…Eco-friendly nanofluids are useful in the process of CPU cooling [12,13]. Nanofluids play a key role in heat exchanger to recover waste energy from Diesel engine [14] and in microchannel heatsink for energy storage [15]. Choi [16] is the one who initially introduced the idea of nanofluids.…”

Section: Introductionmentioning

confidence: 99%

Regression analysis of horizontal magnetic field in thermophysical convective flow of nanofluid

Rauf,

Aslam,

Mushtaq

et al. 2024

Z Angew Math Mech

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The existence of magnetic field is beneficial to stabilize the fluid flow patterns in modern era industrial implications and engineering problems. A constant horizontal magnetized field is implemented to stabilize the swirl viscous fluid flow created by disk rotation. The heat transmission equation is expressed by the variable fluid property that the thermal conductivity is dependent on temperature. Buongiorno nanofluid model is applied to express the role of thermophoresis and Brownian movement. The flow governing equations are normalized through the von Kármán classical similarity variables. The impacts of magnetic and other physical parameters on velocity, thermal and concentration fields are investigated in numerical way using RKF‐45 (Runge–Kutta–Fehlberg) built‐in procedure. The critical part of horizontal magnetic field and dimensionless parameters onto physical quantities such as wall shears, thermal rate, and concentration rate are highlighted. Regression analysis is also performed to evaluate the impact of obtained numerical values of such physical quantities on flow rates. Unlike the familiar impacts of a uniformly applied transverse magnetic field that concerns the velocity field stabilizing and decreasing the thermal rate, it is established that the horizontal magnetized field is valuable for stabilizing/destabilizing the flow phenomenon. The results also matched with the published work in limiting case.

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“…They also present advantages in the application of heat exchangers not only because of their thermophysical properties but also in the geometric parameters of the heat exchange equipment and the working conditions. It can reduce the pressure drop and volume of the heat exchangers when compared with the base fluids, and increase the effectiveness of the heat exchanger regarding the nanofluid used [14,15], hence, leading to low energy consumption and low economic cost [16,17].…”

Section: Introductionmentioning

confidence: 99%

Experimental and Computational Fluid Dynamic—CFD Analysis Simulation of Heat Transfer Using Graphene Nanoplatelets GNP/Water in the Double Tube Heat Exchanger

Lima,

Ochoa,

da Costa

et al. 2023

Processes

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This study investigates and compares the experimental heat transfer performance and simulation via computational fluid dynamics (CFD) of graphene nanoplatelets (GNP) and water nanofluids GNP/water in the double-tube-type heat exchanger (DTHE). Tests were conducted with water/water and GNP/water fluids, with the nanofluid for the hot-fluid circuit and water for the cold-fluid circuit, with counterflow direction, varying the nanofluid concentrations by weight (wt%) at 0.0125%, 0.025%, and 0.050%, the operating temperature at 50 and 60 °C, and Reynolds numbers between 2000–6000. The results showed that 0.025 wt% GNP presented better thermal performance, with a 28% increase in the temperature gain. The 0.025 wt% GNP had slightly better performance for the Nusselt number (Nu), and the 0.05 wt% GNP had a slightly better thermal effectiveness. The comparison between the experimental values showed good agreement with those calculated by empirical correlations and the CFD model, with maximum and minimum relative error values of 9% and 1%, respectively, when the Petukhov equation was used.

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The role of nanofluids and fins in a heat exchanger on waste energy recovery from a diesel engine: An experimental and numerical study

Cited by 16 publications

References 35 publications

Numerical and Experimental Studies of the Nanofluid Characteristics that Effects on Heat Transfer Enhancement: Review and Comparison

Numerical and Experimental Studies of the Nanofluid Characteristics that Effects on Heat Transfer Enhancement: Review and Comparison

Regression analysis of horizontal magnetic field in thermophysical convective flow of nanofluid

Experimental and Computational Fluid Dynamic—CFD Analysis Simulation of Heat Transfer Using Graphene Nanoplatelets GNP/Water in the Double Tube Heat Exchanger

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