Thermo-physical properties of hybrid nanofluids and hybrid nanolubricants: A comprehensive review on performance

Nabil, Mahdi; Azmi, W.H.; Hamid, Khalid; Zawawi, Nurul Nadia Mohd; Priyandoko, Gigih; Mamat, Rizalman

doi:10.1016/j.icheatmasstransfer.2017.03.008

Cited by 138 publications

(44 citation statements)

References 61 publications

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“…Similar findings were reported by researchers [11][12][13]. In addition to NFs, hybrid nanoparticle enriched fluids were outraging the machining performance in terms of reduction Fz, T and Ra due to improved properties than NFs [14,15]. Suspending different nano-sized particles into BOs in the form of the composite mixture is termed as hybrid nanofluid (HNF).…”

Section: Introductionsupporting

confidence: 77%

Performance Evaluation of CNT/MoS2 Hybrid Nanofluid in Machining for Surface Roughness

Gugulothu

Krishna

2019

IJAME

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Present work is motivated by the high thermal conductivity of MWCNT and low coefficient of friction due to MoS2 nanoparticles which can significantly improve the heat transfer and lubrication performance of hybrid nanofluids than nanofluids. Hybrid nanofluids are prepared with CNT/MoS2 nanoparticles of 1wt% in sesame oil, neem oil and mahua oil by varying hybrid ratio (i.e. 1: 1; 1:2 and 2:1) and surfactant. The hybrid nanofluid composition is evaluated based on stability analysis from sedimentation and zeta potential studies. The concentration of nanoparticles is varied by preparing CNT/MoS2 hybrid nanofluid using obtained composition for stability and selected the optimal concentration for the lowest coefficient of friction obtained in friction test. The property of thermal conductivity is also evaluated for varying concentration of hybrid nanofluid at room temperature. The contact angle for CNT/MoS2 hybrid nanofluids is evaluated with a contact angle meter to understand the lubrication effect. Experimental findings for stable hybrid nanofluid are found to be sesame oil, SDS with 15% content of nanoparticle weight and 1:2 hybrid ratio. From friction test, it is observed that 2 wt%concentration is optimal for least coefficient of friction (0.038). Minimum surface roughness (Ra) is observed with 2 wt% of hybrid nanofluid compared to dry machining and conventional cutting fluid. Optimum conditions for minimum surface roughness are evaluated in turning of AISI1040 steel with the use of 2wt% of CNT/MoS2 hybrid nanofluid in RSM. Ra value is observed to decrease with an increase in cutting speed and increased with an increase in feed and depth of cut.

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Section: Introductionsupporting

confidence: 77%

Performance Evaluation of CNT/MoS2 Hybrid Nanofluid in Machining for Surface Roughness

Gugulothu

Krishna

2019

IJAME

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“…A summary of the recently published literature on thermophysical properties of different thermal oils has been presented in A C C E P T E D M A N U S C R I P T 4 table 1. Moreover, a comprehensive review of thermophysical properties of hybrid nanofluids has been recently published by Nabil et al [21].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

An experimental and theoretical investigation on the effects of adding hybrid nanoparticles on heat transfer efficiency and pumping power of an oil-based nanofluid as a coolant fluid

Asadi¹,

Asadi²,

Aberoumand³

2018

International Journal of Refrigeration

106

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“…This approach offers the advantage of better stability and homogeneity of HNF and NF, and the elimination of laborious processes such as storing and drying compared to the one-step approach by reducing NP agglomeration [ 21 , 22 ]. Conversely, the industrial use of this method is not practicable except for fluids with low vapor pressure, and it is capital intensive [ 23 ].…”

Section: Formulation and Stability Of Mono-particle And Hybrid Nanmentioning

confidence: 99%

Experimental Research and Development on the Natural Convection of Suspensions of Nanoparticles—A Comprehensive Review

et al. 2020

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Suspensions of nanoparticles, widely known as nanofluids, are considered as advanced heat transfer media for thermal management and conversion systems. Research on their convective thermal transport is of paramount importance for their applications in such systems such as heat exchangers and solar collectors. This paper presents experimental research on the natural convection heat transfer performances of nanofluids in different geometries from thermal management and conversion perspectives. Experimental results and available experiment-derived correlations for the natural thermal convection of nanofluids are critically analyzed. Other features such as nanofluid preparation, stability evaluation and thermophysical properties of nanofluids that are important for this thermal transfer feature are also briefly reviewed and discussed. Additionally, techniques (active and passive) employed for enhancing the thermo-convection of nanofluids in different geometries are highlighted and discussed. Hybrid nanofluids are featured in this work as the newest class of nanofluids, with particular focuses on the thermophysical properties and natural convection heat transfer performance in enclosures. It is demonstrated that there has been a lack of accurate stability evaluation given the inconsistencies of available results on these properties and features of nanofluids. Although nanofluids exhibit enhanced thermophysical properties such as viscosity and thermal conductivity, convective heat transfer coefficients were observed to deteriorate in some cases when nanofluids were used, especially for nanoparticle concentrations of more than 0.1 vol.%. However, there are inconsistencies in the literature results, and the underlying mechanisms are also not yet well-understood despite their great importance for practical applications.

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Thermo-physical properties of hybrid nanofluids and hybrid nanolubricants: A comprehensive review on performance

Cited by 138 publications

References 61 publications

Performance Evaluation of CNT/MoS2 Hybrid Nanofluid in Machining for Surface Roughness

Performance Evaluation of CNT/MoS2 Hybrid Nanofluid in Machining for Surface Roughness

An experimental and theoretical investigation on the effects of adding hybrid nanoparticles on heat transfer efficiency and pumping power of an oil-based nanofluid as a coolant fluid

Experimental Research and Development on the Natural Convection of Suspensions of Nanoparticles—A Comprehensive Review

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