An Alternative Method using Pressure Viscometer

He will present the relative change in viscosity and viscosity of the fluid over plural shear rates are falling or rising pressure difference caused by the capillary flow in the chamber system using alternate pressure viscometer device detection method of the invention is directed to. Fluid flow through the capillary restriction, pressure and flow rate measurement system known to be involved, usually the processor, the determination of fluid rheological property. More specifically, this process can monitor the relative apparent viscosity increases due to oxidative thickening.
Background of the invention
Fluidity is a branch of physics relating to the deformation and flow of matter. This is related to issues that determine their behavior, the force exerted on its properties. Thus it is related to the change in form and matter flow study involving viscosity, elasticity and plasticity. This action is directed to the fluid dynamics associated with the fluid and Newton's first non-Newtonian fluid flow regimes in the subgroup.
Rheological relations can provide a direct assessment of processability, useful in monitoring and controlling process is a sensitive method for material characterization (eg, molecular weight change), and useful to the chemical reaction rate of the liquid or changes in simulated conditions. Rheological measurements allows the chemical, mechanical, thermal effects, additive effect, or reaction by-products of the investigation. All viscosity measurements to convey the motion of fluid and to monitor the deformation of the fluid.
Viscosity is a physical property that describes the fluid flow resistance. It has been defined as the apparent friction of the liquid layer is transferred to the next layer of internal friction of liquid measure. It had a strength of the material moving through another substance. Viscosity is the most commonly used to describe petroleum liquids such as fuels and lubricants, and they are often referred to oil trade and classification.In practice, this method has a number of challenges for the device limits the size of the geometry, the relative sample size, and difficult to change the shear rate. In addition, a calibrated glass tubes are fragile, easy to clean, and quite expensive.
Viscometers are usually divided into three main types: capillary, rotating and moving the body. Most of these viscometers can produce viscosity measurements indicated constant shear rate. Therefore, in order to evaluate a range of shear rate viscosity, it is necessary, repeat the measurement of capillary viscometers to change parameters such as height dimensions of the capillary tube), change the speed of rotation of the cone or cup. , Rotating viscometers, falling object, or to change the moving body viscometer density.
Capillary tube viscometer was essentially defined by the Hagen-Poiseuille equation, especially for Newtonain liquids. Newtonian fluid shear stress is proportional to the shear rate, and the proportionality constant is called viscosity. To measure the viscosity of the capillary viscometer, the pressure drop and flow rates are independently measured and correlated with some known standard-viscosity liquid.The sample is placed in the viscometer and temperature controlled. Once the temperature of the test sample is allowed to flow by gravity in the last two characters of time during which the recorded calibrated capillary tube. Thus, the driving force is the hydrostatic test fluid. Viscosity is calculated as the flow of time and the calibration constant of the product.
This invention is directed from the rheological property of the fluid such as viscosity and the relative change in viscosity method, over the shear rates are falling or rising pressure difference between liquid and gas flow in the capillary chamber defined by the diversity system using alternate pressure viscometer device. Fluid flow through the capillary restriction, pressure and flow rate measurement system known to be involved, usually the processor, the determination of fluid rheological property. More specifically, this process can monitor the relative apparent viscosity increases due to oxidative thickening.