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Bearings and Lubrication
Published in Ansel C. Ugural, Mechanical Engineering Design, 2022
Kinematic viscosity, also called Saybolt universal viscosity (SUV) in seconds, is defined by ν=AbsoluteviscosityMassdensity=ηρ
Bearings and Lubrication
Published in Ansel C. Ugural, Youngjin Chung, Errol A. Ugural, Mechanical Engineering Design, 2020
Ansel C. Ugural, Youngjin Chung, Errol A. Ugural
Kinematic viscosity, also called Saybolt universal viscosity (SUV) in seconds, is defined by ν=AbsoluteviscosityMassdensity=ηρ
Bearings and Lubrication
Published in Ansel C. Ugural, Youngjin Chung, Errol A. Ugural, MECHANICAL DESIGN of Machine Components, 2018
Ansel C. Ugural, Youngjin Chung, Errol A. Ugural
Kinematic viscosity, also called Saybolt universal viscosity (SUV) in seconds, is defined by () v=AbsoluteviscosityMassdensity=ηρ
Experimental Investigation of Thermophysical Properties and Combustion Characteristics of Thickened Jet Fuel
Published in Combustion Science and Technology, 2021
Manhou Li, Qiuting Luo, Zhizhong Shu, Hanyuan Chen, Yang Pan, Ruijie Li
The viscosity is related to the shear force and the fluidity of the liquid. When the liquid viscosity is large, the internal friction of fluid flow is large, while the fluidity of the liquid is small. The kinematic viscosity of the thickened jet fuel is measured by the SYD-265D type high-precision kinematic viscosity tester for petroleum products. The kinematic viscosity tester is developed according to the standard measuring method of Saybolt Universal Viscosity (SUV) (ASTM D88/D88M 2007). This device possesses the ability of water bath heating, so it has the ability to measure the viscosity at different temperatures. The measurement accuracy of this viscometer is checked by measuring the viscosity of distilled water at 20°C. The result is 0.983 mm2/s which is extremely close to the datum of 1.004 mm2/s from Ref. (https://www.engineersedge.com), with the relative error less than 1.5%.
Investigation into the performance of eco-friendly graphite nanofluid as lubricant in MQL grinding
Published in Machining Science and Technology, 2019
Mirsadegh Seyedzavvar, Mohammadreza Shabgard, Mousa Mohammadpourfard
On the other hand, according to Figure 10, the graphite nanofluids provide no cooling superiority to pure MQL system as the cooling rate of graphite nanofluid MQL is equal to 1.5 × 105 W/m2K. For further illustration, the thermal conductivity and kinematic viscosity of base fluid and graphite nanofluids were measured as represented in Table 3. For this purpose, hot wire thermal conductivity measurement system and Saybolt Universal viscosity measurement apparatus were utilized (Liew and Hsien, 2015; Shabgard et al., 2016). Despite the fact that the thermal conductivity and kinematic viscosity of base fluid increase by increasing the concentration of graphite nanoparticles in it, the cooling rate of graphite nanofluid MQL is lower than that of pure MQL (Figure 10).