Heat transfer enhancement using MgO/water nanofluid in heat pipe

Menlik, Tayfun; Sözen, Adnan; Gürü, Metin; Öztaş, Sinan

doi:10.1016/j.joei.2014.10.001

Cited by 68 publications

(19 citation statements)

References 12 publications

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“…The use of mono-nanofluids to increase cooling efficiency in various energy applications plays a vital role in obtaining optimal design along with significant improvement in operation systems, which can have great impact on thermal applications, leading to magnificent performance in system by using mono nanofluids such as heat exchangers [63], heat pipes [64], cooling electronic devices [65] and [66], and automotive cooling system [67] and [68].…”

Section: Thermal Applications Of Hybrid Nanofluidsmentioning

confidence: 99%

A Brief Survey of Preparation and Heat Transfer Enhancement of Hybrid Nanofluids

Hussien¹,

Al‐Kouz²,

Yusop³

et al. 2019

SV-JME

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Section: Thermal Applications Of Hybrid Nanofluidsmentioning

confidence: 99%

A Brief Survey of Preparation and Heat Transfer Enhancement of Hybrid Nanofluids

Hussien¹,

Al‐Kouz²,

Yusop³

et al. 2019

SV-JME

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“…A maximum decrease of 6.89% temperature was observed in diamond water with 0.9% mass concentration compared with water at heat load 40W due to the nanoparticles suspension in the nanofluid has a significant effect on the enhancement of heat transfer for its higher heat capacity and higher thermal conductivity of working fluid. [12] Therefore, the heat pipe thermal efficiency heat pipe increases with nanofluids as compared to that of the base working fluids such as water. at heat load 40W and flow rate 7.5ml/min Figure 11 shows the relationship of total thermal resistance (Rt) of LHP at various applied heat loads.…”

Section: Effect Of Heat Loadmentioning

confidence: 99%

“…Tayfun Menlik [12], experimentally demonstrated the effects of using nano-fluid obtained from MgO to improve the performance of a heat pipe. MgO nanoparticles with average diameters of 40nm were suspended in the base fluid (demonized water).…”

Section: Introductionmentioning

confidence: 99%

Influence of low concentration of diamond water nanofluid in loop heat pipe

Aun

Abdullah

Gunnasegaran³

2017

IJHT

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There are various analyses performed to study the heat transfer performance of nanofluid as working fluid in the heat pipe. The studies include the different viscosity, density, specific heat and thermal conductivity effects. However, to consider in terms of cost of material, high thermal efficiency particle with high concentration, for example, gold and diamond would cost higher even though it shows good thermal performance as compared to other nanoparticles. In this research, an experiment is conducted to investigate the heat transfer characteristics by using low concentrations of diamond water, which is less than 1% in Loop Heat Pipe (LHP). The nanofluid consists of three types of mass concentration which is 0.3%, 0.6% and 0.9%. There are two conditions to study the effect of nanofluid to heat transfer performance on LHP in this experiment. The conditions are different flow rate and different heat load application. The LHP performance is evaluated in terms of total thermal resistance (Rt) of LHP, heat transfer coefficient of evaporator and transient temperature distribution. To justify the experiment, the results were compared with ANSYS simulation, which found in good agreement. The significant gain from this experiment is the ability to prove that low concentration of diamond attains higher heat transfer coefficient than water. At the same time, the bubble flow patterns of diamond water in vapor line are found to be smaller than water which indicate higher heat transfer characteristic for working fluid compared with pure water. Thus, there is a potential for low concentration of diamond water nanofluid to be utilized as working fluid, in terms of cost, than using mass concentration of more than 1%.

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“…The results revealed that the thermal performance of the heat pipe increased utilizing 5 wt.% while it was decreased with 10 wt.% compared with distilled water. Menlik et al [8] investigated the effect of MgO/water nanofluid on the thermal performance of a two-phase closed thermosyphon heat pipe at various states of operation. They concluded that the thermal performance of MgO/water nanofluid was better than that of deionized water, the highest improvement in efficiency was determined as 26%.…”

Section: David Publishingmentioning

confidence: 99%

Heat Transfer Performance of a Multi-heat Pipe Using Graphene Oxide/Water Nanofluid

Salem¹,

Meakhail²,

Bassily³

et al. 2017

JEPE

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Abstract:A multi-heat pipe is a device for heat transmission. It is composed of a heating section, a cooling section and an adiabatic section. The heating and cooling sections are the same and both are connected by four circular parallel tubes. This experimental study is performed to investigate heat transfer performance of a multi-heat pipe in the vertical orientation using pure water and GO (graphene oxide)/water nanofluid. GO/water nanofluids were synthesized by the modified Hummers method with 0.05%, 0.1%, 0.15%, and 0.2% volume concentrations. The thermal performance has been investigated with varying heat flux in the range of 10-30 W and 100% fill charge ratio. Wall temperature, thermal resistance, and heat transfer coefficient of the heat pipe are measured and compared with those for the heat pipe using pure water. The experimental results show that the evaporator wall temperature with GO nanofluid is lower than that of the base fluid. Also, the heat pipe that charged with nanofluids showed lower thermal resistance compared with pure water. Heat transfer enhancement is caused by suspended nanoparticles and is pronounced with the increase in particle volume fraction.

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Heat transfer enhancement using MgO/water nanofluid in heat pipe

Cited by 68 publications

References 12 publications

A Brief Survey of Preparation and Heat Transfer Enhancement of Hybrid Nanofluids

A Brief Survey of Preparation and Heat Transfer Enhancement of Hybrid Nanofluids

Influence of low concentration of diamond water nanofluid in loop heat pipe

Heat Transfer Performance of a Multi-heat Pipe Using Graphene Oxide/Water Nanofluid

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