Air at (5.15x10^2) K flows out of a circular pipe at 101325 Pa as shown in Figure. The mass flowrate of the air at the pipe entrance is 0.0093 kg/s. The diameter of the pipe is 0.1m. Specific gas constant of air is 287 J/kg-K. Specific heat of air is 1000 J/kg-K. Find the outlet Velocity if 2000 J of heat is added to the pipe. Answer should be in m/s with three significant figures.

Air at (5.15x10^2) K flows out of a circular pipe at 101325 Pa as shown in Figure. The mass flowrate of the air at the pipe entrance is 0.0093 kg/s. The diameter of the pipe is 0.1m. Specific gas constant of air is 287 J/kg-K. Specific heat of air is 1000 J/kg-K. Find the outlet Velocity if 2000 J of heat is added to the pipe. Answer should be in m/s with three significant figures.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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Concept explainers

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.

Question

Q=2000J
Vout =?
m (kg/s)
D=0.1m
air
Air at (5.15x10^2) K flows out of a circular pipe at 101325 Pa as shown in Figure. The mass flowrate
of the air at the pipe entrance is 0.0093 kg/s. The diameter of the pipe is 0.1m. Specific gas constant
of air is 287 J/kg-K. Specific heat of air is 1000 J/kg-K. Find the outlet Velocity if 2000 J of heat is
added to the pipe.
Answer should be in m/s with three significant figures.
Note: Your answer is assumed to be reduced to the highest power possible.
Your Answer:
x10
Answer
DELL

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