The company has opted to purchase a new viscometer for you, as such, you are required by to propose two options for new viscometers. Select two viscometers and explain their operation and constraints. (P3) b. (P4) Given that you achieved the following results with a U-Tube viscometer: Temperature/ C Time / s

The company has opted to purchase a new viscometer for you, as such, you are required by to propose two options for new viscometers. Select two viscometers and explain their operation and constraints. (P3) b. (P4) Given that you achieved the following results with a U-Tube viscometer: Temperature/ C Time / s

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.18P: The drag on an airplane wing in flight is known to be a function of the density of air (), the...

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The drag on an airplane wing in flight is known to be a function of the density of air (), the viscosity of air(), the free-stream velocity (U), a characteristic dimension of the wing (s), and the shear stress on the surface of the wing (s). Show that the dimensionless drag, sU2, can be expressed as a function of the Reynolds number, Us.
The total consumption of electrical energy in the United States is about 1.0 1019joules per year.What is the average rate of electrical energy consumption in watts?If the population of the United States is 300 million, what is the average rate of electrical energy consumption per person?The sun transfers energy to the earth by radiation at a rate of approximately 1.0 kW per square meter of surface. If this energy could be collected and converted to electrical energy with 40 % efficiency, how great an area (in square kilometers) would be required to collect the electrical energy used by the United States?
1. A lead cube has a total mass of 64 kg. What is the Length of its side in cm? specific gravity of lead = 7.27. 2. If the viscosity of water at 70 degrees celsius is 0.0077 poise and its specific gravity is 0.453, determine its kinematic viscosity in stokes.
Liquid biofuel (density= 789 kg/m3) is being pumped from a storage tank through a pipe with 1-inch innerdiameter (ID). The fuel is being pumped at a rate of 3.00 gallons per minute. In this process, what is thekinetic energy transport rate (Ėk) in units of horsepower (hp) and ft•lbf/sec.
(a). A lubricating oil having the dynamic viscosity of 0.055 poise and kinematic viscosity of 0.11 stokes. Calculate (i) the density of oil in kg/m³, (ii) the weight density of oil in N/m³, (i) the specific gravity, and (iv) the specific volume in m/kg.
The Reynold's number of a sphere falling in air is 1E6. If the sphere's radius is 1ft, what is its velocity? Density of air is 0.00234 slug/ft³ and viscosity of air is 3.8E-7 lbf-sec/ft²A. 2.5 ft/sB. 5.1 ft/sC. 40.6 ft/sD. 81.2 ft/s
Calculate the drag force (unit: N) of a sphere particle in 20°C water. Know the diameter of the particle = 1 cm; the Reynolds number of water = 1; dynamic viscosity of 20°C water = 0.001 kg/ms; velocity of the particle = 0.02 m/s.
1. A special-purpose piece of laboratory glassware, called a pyncnometer; is used to measureLiquid densities. It has a volume of 25 cc, and a mass of 17 .24 g when it is full of air. Whenfilled with a liquid of unknown density, its mass = 45.00 g. What is the density of this liquid?How large an error do we make if we ignore the mass of the air that was in it when we weighed itand found m = 17.24 g?
The kinematic viscosity of and specific gravity of a liquid are 3.5 x 10-4 m^2 /s and 0.79, respectively. What is the dynamic viscosity of the liquid in N-s/m^2?
4. By means of a graph, show the relationship between temperature and density of a substance. 5. Why is it necessary to correct for temperature variation in specific gravity of solids and of gases? 6. Aside from those liquids used in the experiment, name at least 10 liquids that are of particular importance in the field of mechanical engineering. Indicate their common applications and specific gravity at 60/60°F.
1 ft/min=_____ ft/h using dimensional analysis
To apply conservation of momentum to describe the motion of a rocket. A rocket is launched into deep space, where gravity is negligible. In the first second, it ejects 1/160 of its mass as exhaust gas and has an acceleration of 16.0 m/s2. What is vg, the speed of the exhaust gas relative to the rocket?