Concentric cylinder viscometer may be formed by rotating

Assignment Help Mechanical Engineering

Reference no: EM13704610

A concentric cylinder viscometer may be formed by rotating the inner member of a pair of closely fitting cylinders (see Figure 1). For small clearances, a linear velocity profile may be assumed in the liquid filling the annular clearance gap. A viscometer has an inner cylinder of 75 mm diameter and 150 mm height, with a clearance gap of 0.02 mm. A torque of 0.021 N. m is required to turn the inner cylinder at 100 rpm. Determine the viscosity (SI units) of the Newtonian liquid in the clearance gap of the viscometer.

Reference no: EM13704610

Questions Cloud

Determine the change in internal energy twice : Determine the change in internal energy twice for each of the 3 cases identified below. In your first calculation assume ideal gas behavior, and use appropriate specific heat at the average temperature. In your second calculation, use real substance ..

Temperature of first container relative to second container : Two samples of different pure substances having equal mass are each placed in rigid containers. The first container is half as large as the second container. After the containers are sealed, the pressure of the first container is observed to be twice..

Calculate the final temperature and enthalpy : A spring-loaded piston-cylinder device is initially filled with 0.13 lbm of an R-134a liquid-vapor mixture whose temperature is ?30°F and whose quality is 80 percent. The spring constant in the spring force relation F = kx is 37 lbf/in, and the pisto..

Temperature at which the sleeve will slip over the shaft : At a temperature of 21°C, a cold-rolled red brass [alpha B = 17.6 x 10-6/°C] sleeve has an inside diameter of dB = 314.70 mm and an outside diameter of DB = 325 mm. The sleeve is to be placed on a steel [alpha S = 11.9 x 10-6/°C] shaft with an outsid..

Concentric cylinder viscometer may be formed by rotating : A concentric cylinder viscometer may be formed by rotating the inner member of a pair of closely fitting cylinders (see Figure 1). For small clearances, a linear velocity profile may be assumed in the liquid filling the annular clearance gap. A visco..

Proportional to the square root of the absolute temperature : The speed of sound in air is proportional to the square root of the absolute temperature. If the speed of sound is 1126.0 ft/s when the air temperature is 68 °F (degree F), what will the speed of sound be when the air temperature is 105 °F (degree F)..

Predict the performance of turbine : A Turbine develops 40,000KW power by running at a speed of 150 rpm at a head of 25 m. The discharge required is 150m^3/s. If the head of the turbine is reduced to 20 m. Predict the performance of turbine?

Adiabatic flame temperature for constant pressure : Determine the adiabatic flame temperature for constant pressure combustion of a stoichiometric propane air mixture assuming reactants at 298 k . No dissociation of the products and constant specific heats evaluated at 298 k.

Consider the equilibrium reaction in a closed vessel : Assume the vessel contains 1 mole of O2when there is no dissociation. Calculate mole fraction of O2 and O for the following conditions. Comment on how pressure and temperature impacts equilibrium composition and if the changes are consistent with Pri..

User Account

All Pages