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Consider laminar flow in a circular tubewith a fully developed velocity profile.Let the heat be added at a constant rate along the tube from x+ =0 to x+ =0.10 . Thereafter ,let the tube surface be adiabatic.Calculate and plot the tube surface temperature as a function of x+.
Consider a concentric circular-tube annulus ,with outer diameter 2.5cm and inner diameter 1.25cm,in which the air is flowing under fully developed ,constant heat -rate conditions. Heat is supplied to the inner tube ,and the outer tube is externally insulated . The radiation emissivity of both tube surfaces is 0.8 .The mixed mean temperature of air at a particular point in question is 260 degrees centigrade. The inner- tube surface temperature at this point is 300 degC. What is total heat flux from the inner tube surface at this point? What is the outer tube surface temperature at this point ? What percentage of the heat supplied to the inner tube is transfered directly to the air, and what percentage indirectly from the outer surface ?
The reynolds number is sufficiently low that the flow is laminar . Assume that the air is transparent to the thermal radiation.
How are footings described and introduced properly? The selection of different types of footings and the need for reinforcing the same are discussed in this unit. Methods of de
Theore m of parallel axis It states that if the M.I. of plane area about the axis passing through the C . G . can be denoted by I G . The M . I . of area about any other
Pultrusion Structure sections of long length are generated by putting the fibres via resin bath and heated dies of exact shapes. Unidirectional fibres along with high volume f
Illustrate the assumptions made in Euler's theory. Determine the expression for crippling load for a long column when one end of the column is fixed and other end is hinged.
Define the process of SAW (submerged Arc welding). And also explain its advantages and disadvantages.
types of welding, pressure and non pressure welding
INTRODUCTION In the morning session there was a discussion about what the teachers are going to do in this week. Later the professor has shown power point presentation on int
microscopic and macroscopic approch
In most hardware stores, you can find what has known as a Heat Gun. Hold the heat gun about 6 inches away from the acrylic you intend on bending say the bumper on a car. They are p
Laws of solid friction: Sol.: The friction which exists between two surfaces that are not lubricated is called as solid friction. The two Surfaces can be at rest or one of t
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