Effect of Nanoparticles on Thermal Properties Enhancement in Different Oils – A Review

Sridhara, V.; Satapathy, L. N.

doi:10.1080/10408436.2015.1068159

Cited by 34 publications

(19 citation statements)

References 102 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1 The advantages of using nanoparticles include friction and wear reduction, saving energy, thermal properties enhancement, and improvement in the efficiency of dynamic transmission. 2,3 A variety of mechanisms have been highlighted in literature to describe the lubrication mechanism of the nanolubricants. It includes direct effect (ball bearing effect and protective film formation) and secondary effect of the existence of nanoparticles on surface enhancement.…”

Section: Introductionmentioning

confidence: 99%

The effect of particle size on the dispersion and wear protection ability of MoS₂ particles in polyalphaolefin and trimethylolpropane ester

Gulzar

Zahid

Alabdulkarem

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part J:

View full text Add to dashboard Cite

The effect of particle size and surfactant on dispersion stability and wear protection ability was experimentally evaluated for polyalphaolefin (PAO 10) and bio-based base oil (palm trimethylolpropane ester) added with molybdenum disulfide (MoS 2) particles. Nanolubricants were developed by adding 1 wt% of MoS 2 particles that varied in size. In addition to the variation in particle size, an anionic surfactant was also used to analyze its interaction with both types of nanoparticles for stable suspensions and for the related effects on the antiwear characteristics. The wear protection characteristics of the formulations were evaluated by four-ball extreme pressure tests and piston ring on cylinder sliding wear tests. The wear surfaces were analyzed by scanning electron microscopy along with an energy-dispersive X-ray and an atomic force microscopy. The MoS 2 nanoparticles with a nominal size of 20 nm exhibited a better load-carrying capacity, while better sliding wear protection was provided by nanoparticles with a nominal size of 50 nm.

show abstract

Section: Introductionmentioning

confidence: 99%

The effect of particle size on the dispersion and wear protection ability of MoS₂ particles in polyalphaolefin and trimethylolpropane ester

Gulzar

Zahid

Alabdulkarem

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part J:

View full text Add to dashboard Cite

show abstract

“…Many types of nanoparticles are used for synthesizing nanofluids including carbon nanotubes, metals, metal oxides, ceramics, etc. metals generally have considerably high thermal conductivities than fluids, however, some types of advanced ceramics offer interestingly high thermal conductivities even more than common metal, such as ZrB2 [47, 48, 57- which affects the final properties od nanofluids, is the preparation of the nanoparticles [165]. Some of the synthesizing methods of nanoparticles are presented in Fig.…”

Section: Preparation Methodsmentioning

confidence: 99%

“…Synthesizing a stable and durable homogenous nanofluid has always been challenging for researchers due to the agglomeration of nanoparticles as a result of the van der Waals forces [187]. To avoid particle agglomeration, some physical and chemical methods have been proposed and investigated [165]. The most common method that researchers use while confronting agglomerations is adding surfactants which is a chemical method [188].…”

Section: Stability Of Nanofluidsmentioning

confidence: 99%

Thermal conductivity, viscosity and heat transfer process in nanofluids: A critical review

Noorzadeh

Moghanlou

Vajdi

et al. 2020

jcc

View full text Add to dashboard Cite

“…This section presents a variational formulation, based on the FE method [27], to numerically solve the balance equations (1), (12), (15) and (17).…”

Section: Finite Element Formulationmentioning

confidence: 99%

“…A way for improving the thermal efficiency of these plants consists of adding nanoencapsulated phase change materials (nePCMs) to the heat transfer fluid or to the thermal storage fluid. This mixture, commonly known as nanofluid [11], enables not only to improve the efficiency of heat transfer [12] but also to store energy to overcome the mismatch between supply and demand of energy [5]. Nevertheless and despite the fact that nePCMs have a direct impact in the thermal efficiency and heat storage, their synthesis becomes a difficult task.…”

Section: Introductionmentioning

confidence: 99%

Finite element formulation to study thermal stresses in nanoencapsulated phase change materials for energy storage

Forner-Escrig

Palma

Mondragón

2020

Journal of Thermal Stresses

View full text Add to dashboard Cite

Nanoencapsulated phase change materials (nePCMs)-which are composed of a core with a phase change material and of a shell that envelopes the core-are currently under research for heat storage applications. Mechanically, one problem encountered in the synthesis of nePCMs is the failure of the shell due to thermal stresses during heating/cooling cycles. Thus, a compromise between shell and core volumes must be found to guarantee both mechanical reliability and heat storage capacity. At present, this compromise is commonly achieved by trial and error experiments or by using simple analytical solutions. On this ground, the current work presents a thermodynamically consistent and three-dimensional finite element (FE) formulation considering both solid and liquid phases to study thermal stresses in nePCMs. Despite the fact that there are several phase change FE formulations in the literature, the main novelty of the present work is its monolithic coupling-no staggered approaches are required-between thermal and mechanical fields. Then, the FE formulation is implemented in a computational code and it is validated against onedimensional analytical solutions. Finally, the FE model is used to perform a thermal stress analysis for different nePCM geometries and materials to predict their mechanical failure by using the Rankine's criterion.

show abstract

Effect of Nanoparticles on Thermal Properties Enhancement in Different Oils – A Review

Cited by 34 publications

References 102 publications

The effect of particle size on the dispersion and wear protection ability of MoS₂ particles in polyalphaolefin and trimethylolpropane ester

The effect of particle size on the dispersion and wear protection ability of MoS₂ particles in polyalphaolefin and trimethylolpropane ester

Thermal conductivity, viscosity and heat transfer process in nanofluids: A critical review

Finite element formulation to study thermal stresses in nanoencapsulated phase change materials for energy storage

Contact Info

Product

Resources

About

Effect of Nanoparticles on Thermal Properties Enhancement in Different Oils – A Review

Cited by 34 publications

References 102 publications

The effect of particle size on the dispersion and wear protection ability of MoS2 particles in polyalphaolefin and trimethylolpropane ester

The effect of particle size on the dispersion and wear protection ability of MoS2 particles in polyalphaolefin and trimethylolpropane ester

Thermal conductivity, viscosity and heat transfer process in nanofluids: A critical review

Finite element formulation to study thermal stresses in nanoencapsulated phase change materials for energy storage

Contact Info

Product

Resources

About

The effect of particle size on the dispersion and wear protection ability of MoS₂ particles in polyalphaolefin and trimethylolpropane ester

The effect of particle size on the dispersion and wear protection ability of MoS₂ particles in polyalphaolefin and trimethylolpropane ester