Viscometer and Use the Same Method

Re-Publish this Article

<h1>Viscometer and Use the Same Method</h1><strong> Author: <a href='http://www.articleseen.com/profile_Viscometer.aspx'>Viscometer</a></strong><br /><p>Viscometer adapted to the temperature at which liquid sample prior to viscosity. Expansion of the liquid sample from the sample reservoir into the capillary tube, the temperature change after the first sub-zero degrees centigrade the liquid sample to the capillary drying air: viscometer, comprising steps of this method to determine the temperature and viscosity of the first liquid sample to the first sub-zero temperatures in degrees Celsius. Capillary tube use in determining the temperature at which liquid sample prior to viscosity. ... Jets running very low temperatures, mainly due to the height where they fly, but the low temperatures in colder climates. Especially in extreme conditions can occur in the polar regions at high altitude. As the fuel temperature decreases the viscosity increases and can reach a critical viscosity of the fuel becomes difficult of digestion. This can cause the fuel to be difficult or even impossible to ignite. In addition, the fuel tanks during flight to cool to a temperature at which the fuel viscosity exceeds pumpability, threshold, and therefore can not be used to fuel engines. So, it is customary to select one or more of the standardized criteria established by aviation fuel specification authorities and standardization of aviation fuel. The criterion is that the viscosity of the jet fuel must be below a predetermined level, as measured for example. Temperature of minus 20 degrees Celsius. It has surprisingly been found that the compressed air drying of the inner surface so as to remove any solvent used to clean the viscometer test is not sufficient to obtain a correct measurement. This is because, although it had been removed, is inside the capillary, the air cooling assembly causes the dew to be formed on the inner surface of the capillary assembly in the air reaches the dew point moisture condenses on the inner surface of the capillary. In addition, dew may form ice crystals on the inner surface of the capillary assembly, when the temperature is lowered to below zero degrees centigrade. Ice has implemented a collection of capillary measurements. In addition, it was surprisingly found that using filterability test is not suitable to determine the quality of, for example. aircraft fuel, with high cloud and pour points for example to block the filter against the viscous sample containing little or no wax, and therefore does not block the filter. Therefore, embodiments of this invention provide an improved method for the object to determine whether aviation fuel is suitable for use in such extreme conditions. In addition, embodiments of this invention is to prevent dew and ice crystal formation on the inner surface of the capillary assembly. Short description of the invention The first aspect, this invention relates to the viscometer adapted to the temperature at which liquid sample prior to viscosity. The inventive concept of "viscosity" must be understood as a fluid which is deformed or shear stress or extensional stress resistance measures. Therefore, the higher the resistance to flow, the more viscous fluid. In some embodiments, the viscosity is determined by the apparatus or method of this invention the kinematic viscosity. The viscosity and kinematic viscosity ratio is as follows: viscosity = kinematic viscosity fluid density * It should be noted that not only the viscometer to be able to determine the temperature at which the liquid sample is to advance the viscosity, as well as it can, in some embodiments may set a predetermined temperature viscosity. It can not be minus 20 degrees centigrade. Accordingly, the apparatus of this invention can also be used to test that today are intended for aircraft fuel specifications and standardization bodies, namely the test with a viscosity at minus 20 degrees Celsius is established. Alternatively or in addition, the test may be subjected to the temperature minus 40 degrees Celsius and / or plus 20 degrees Celsius Viscometer can be adapted for testing of liquid test samples with the temperature is higher and (or) below zero degrees Fahrenheit. In one embodiment, the temperature, which determines the viscosity is determined by a sub-zero degrees Celsius temperature, for example, temperatures below minus 20 degrees Celsius, for example, below minus 30 degrees Celsius, for example, temperature minus 40 degrees Celsius, for example, below minus 50 degrees centigrade.</p><strong>About the Author:</strong><br />Visit viscometer.co for all types of <a rel="nofollow" href="http://www.viscometer.co/">viscometer</a> according to your need.<p> Article Source: <a href='http://www.articleseen.com/Article_Viscometer-and-Use-the-Same-Method_145411.aspx'> http://www.articleseen.com/Article_Viscometer and Use the Same Method_145411.aspx</a></p>

Article Source : http://www.articleseen.com/Article_Viscometer and Use the Same Method_145411.aspx

Keywords : viscometer, digital viscometer,

Category : Business : Business