Method and device for measurement of dynamic viscosity

Ciornei, Florina-Carmen; Alaci, Stelian; Dumitru, Adrian; Irimescu, Luminita; Romanu, I C; Acsinte, L I

doi:10.1088/1757-899x/174/1/012041

Cited by 5 publications

(3 citation statements)

References 11 publications

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“…Later, with a new experimental study of nanofluids (Al 2 O 3 -base fluid and CuO-base fluid), Asokan et al confirmed that the density, thermal conductivity, and viscosity increase with the nanoparticle concentration in the base fluid [ 47 ]. A mixture of 60% ethylene glycol and 40% water was used as a base fluid [ 48 ]. Recently, Saleh et al analyzed a MWCNT/water nanofluid (multiwalled carbon nanotube/water nanofluids), demonstrating that the thermal conductivity, viscosity, and density were augmented by 15.27%, 9.15%, and 1%, respectively, at a 0.3% particle concentration compared with water as the base fluid.…”

Section: Impact Of Morphology and Concentration Of Nanoparticles On N...mentioning

confidence: 99%

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Application of Nanofluids in Improving the Performance of Double-Pipe Heat Exchangers—A Critical Review

et al. 2022

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Nanofluids can be employed as one of the two fluids needed to improve heat exchanger performance due to their improved thermal and rheological properties. In this review, the impact of nanoparticles on nanofluid properties is discussed by analyzing factors such as the concentration, size, and shape of nanoparticles. Nanofluid thermophysical properties and flow rate directly influence the heat transfer coefficient and pressure drop. High thermal conductivity nanoparticles improve the heat transfer coefficient; in particular, metallic oxide (such as MgO, TiO2, and ZnO) nanoparticles show greater enhancement of this property by up to 30% compared to the base fluid. Nanoparticle size and shape are other factors to consider as well, e.g., a significant difference in thermal conductivity enhancement from 6.41% to 9.73% could be achieved by decreasing the Al2O3 nanoparticle size from 90 to 10 nm, affecting nanofluid viscosity and density. In addition, equations to determine the heat transfer rate and the pressure drop in a double-pipe heat exchanger are presented. It was established that the main factor that directly influences the heat transfer coefficient is the nanofluid thermal conductivity, and nanofluid viscosity affects the pressure drop.

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Section: Impact Of Morphology and Concentration Of Nanoparticles On N...mentioning

confidence: 99%

“…Viscosity is described as the resistance of one fluid layer against another layer of either fluid or solid [ 48 ]. Viscosity is considered another important factor for heat transfer applications.…”

Section: Effects Of Nanofluid Characteristics On Heat Transfer Rate A...mentioning

confidence: 99%

Application of Nanofluids in Improving the Performance of Double-Pipe Heat Exchangers—A Critical Review

et al. 2022

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“…4,5 Traditional viscometers, such as cone and plate, falling ball, and capillary sensing, are generally used to measure fluid viscosities. 6,7 However, most of the conventional viscometers are extremely bulky, and require precise balance such as perfectly leveled flatbed to avoid error in the results. 8,9 These techniques typically require large sample volumes on the order of milliliters and timeconsuming data acquisition and sample handling steps.…”

Section: Introductionmentioning

confidence: 99%