Enhancement of Thermal Properties of Water by Using Nano Particles for Application in Thermal EOR Methods

2013 ◽  
Author(s):  
Ashkan Maghouli ◽  
Bahram Taheri ◽  
Ali Habibi ◽  
Peyman Pourafshary
Keyword(s):  
Thermal Properties ◽  
Nano Particles

Particle properties for suspension plasma spray

2014 ◽  
Vol 24 (6) ◽  
pp. 1378-1388 ◽  
Author(s):  
Qian Lijuan ◽  
Xianyu Chu
Keyword(s):  
Thermal Properties ◽  
Physical Properties ◽  
Solid Particle ◽  
Plasma Spray ◽  
Operating Conditions ◽  
Solid Particles ◽  
Suspension Plasma Spray ◽  
Nano Particles ◽  
Final Particle ◽  
Content Type

Purpose – The purpose of this paper is to use comprehensive model to investigate the effects of particle physical properties on in-flight nano-particles behavior for the radio frequency suspension plasma spray. Design/methodology/approach – In this paper, both the effects thermal properties of solvent and solid particle on the evolution of particle size, velocity and temperature are discussed. Besides, the numerical analysis is also conducted to investigate the influences of particle physical properties on the characteristic distributions of particles for poly-disperse cases. Findings – Results show the thermal properties of solvent have critical effects on the discharged point of the solid particles, but little influence on the final particle velocity and size, as well as their distributions. The final state of particle temperature is mainly determined by the solid particle thermal properties, especially depending on the boiling point. Originality/value – Most of the former studies took the experimental approaches and mainly focussed on the operating conditions effects. While beyond the operating conditions, the variety of particle physical and thermal properties also has strong effect on particle heating performance.

scholarly journals ENHANCING HEAT TRANSFER COEFFICIENT AND BREAKDOWN STRENGTH OF MINERAL OIL BY (AL2O3 AND TIO2) NANOPARTICLES

2021 ◽  
Vol 25 (Special) ◽  
pp. 2-33-2-38
Author(s):  
Mohammad M. Ali ◽  
◽  
Amer H. Majeed ◽  
Keyword(s):  
Heat Transfer ◽  
Heat Transfer Coefficient ◽  
Thermal Properties ◽  
Transfer Coefficient ◽  
Breakdown Strength ◽  
Dielectric Strength ◽  
Mineral Oil ◽  
Nano Particles ◽  
Paper Study ◽  
Enhancing Heat Transfer

The aims of this paper study the effects of two types of nanoparticle on dielectric strength and heat transfer coefficient within mineral oil used in an electrical transformer. These nanoparticles (NPs) including (semi conductive TiO2 and insulating Al2O3), have been prepared with the same size and surface modification, it is shown that nano-particles enhance insulating and thermal properties of mineral oil as well as the degree of enhancement is dependent on the NPs concentration.

scholarly journals Research on the Compound Optimization Method of the Electrical and Thermal Properties of SiC/EP Composite Insulating Material

Polymers ◽  
2021 ◽  
Vol 13 (19) ◽  
pp. 3369
Author(s):  
Xupeng Song ◽  
Xiaofeng Xue ◽  
Wen Qi ◽  
Jin Zhang ◽  
Yang Zhou ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Composite Material ◽  
Thermal Properties ◽  
Heat Conduction ◽  
Composite Materials ◽  
Breakdown Strength ◽  
Optimization Method ◽  
Nano Particles ◽  
Electrical Performance ◽  
Conduction Channel

In this paper, in order to improve the electrical and thermal properties of SiC/EP composites, the methods of compounding different crystalline SiC and micro-nano SiC particles are used to optimize them. Under different compound ratios, the thermal conductivity and breakdown voltage parameters of the composite material were investigated. It was found that for the SiC/EP composite materials of different crystal types of SiC, when the ratio of α and β silicon carbide is 1:1, the electrical performance of the composite material is the best, and the breakdown strength can be increased by more than 10% compared with the composite material filled with single crystal particles. For micro-nano compound SiC/EP composites, different total filling amounts of SiC correspond to different optimal ratios of micro/nano particles. At the optimal ratio, the introduction of nanoparticles can increase the breakdown strength of the composite material by more than 10%. Compared with the compound of different crystalline SiC, the advantage is that the introduction of a small amount of nanoparticles can play a strong role in enhancing the break-down field strength. For the filled composite materials, the thermal conductivity mainly depends on whether an effective heat conduction channel can be constructed. Through experiments and finite element simulation calculations, it is found that the filler shape and particle size have a greater impact on the thermal conductivity of the composite material, when the filler shape is rounder, the composite material can more effectively construct the heat conduction channel.

Comparative Studies in Dispersing Nanoparticles in a Styrene Butadiene Rubber Matrix via Different Blending Methods

2015 ◽  
Vol 32 ◽  
pp. 43-50
Author(s):  
Rane Ajay Vasudeo ◽  
V.K. Abitha ◽  
P.S. Suchithra ◽  
K. Rajkumar
Keyword(s):  
Particle Size ◽  
Thermal Properties ◽  
Nano Particles ◽  
Current Work ◽  
Rubber Matrix ◽  
Styrene Butadiene Rubber ◽  
Gravimetric Analysis ◽  
Butadiene Rubber ◽  
Solution Blending ◽  
Styrene Butadiene

InIncorporation and dispersion of particulate fillers are the two steps that are necessary to achieve optimum properties in a rubber compound, i.e. mechanical, thermal properties. The incorporation and dispersion of particulate fillers depend on their particle size, smaller particle size is difficult to incorporate but easier to disperse in a rubber matrix while large dimension particle size filler are easier to incorporate but difficult to disperse. Hence, in the current work we have studied different methods of incorporating nano particles in to the matrix of styrene butadiene rubber and further rubber nanocomposites obtained were characterized for curative properties using, remote, thereafter determined for structural elucidation by using Fourier transform infrared spectroscopy, thermal properties through thermal gravimetric analysis, Physio-mechanical as well as morphology determination via transmission electron microscopy. In current work we have compared melt blending and solution blending methods for preparation of styrene butadiene rubber Nano Aluminium Tri hydroxide composites.

Microstructural and thermal properties of piston aluminum alloy reinforced by nano-particles

2018 ◽  
Author(s):  
Mohammad Azadi ◽  
Sama Safarloo ◽  
Fatemeh Loghman ◽  
Roham Rasouli
Keyword(s):  
Aluminum Alloy ◽  
Thermal Properties ◽  
Nano Particles

Enhanced Thermal Properties of PCM Based Nanofluid for Solar Thermal Energy Storage

2010 ◽  
Author(s):  
Donghyun Shin ◽  
Debjyoti Banerjee
Keyword(s):  
Thermal Conductivity ◽  
Thermal Properties ◽  
Transport Properties ◽  
Experimental Studies ◽  
Thermal Storage ◽  
Nano Particles ◽  
Solar Thermal ◽  
Solar Thermal Energy ◽  
Heat Diffusivity ◽  
Solar Thermal Applications

Nanofluids are synthesized by doping solvents with nano-particles at minute concentrations (typically less than 1 percentage by volume). Experimental studies have shown that nano-particles can dramatically enhance thermal conductivity of various liquid solvents. This is also associated with enhancement of other transport properties (e.g., viscosity, specific heat, diffusivity, etc.). Hence, nanofluids are attractive materials for solar thermal applications. The objective of this study is to investigate the optimum performance of various nanofluids for solar thermal storage applications. Dimensional analyses and similitude techniques will be used to theoretically estimate the enhancement of transport properties of various nanofluids to predict their efficacy for solar thermal storage applications.

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