9. A hot-wire anemometer is a heated electric resistance placed in the pipe carry- ing the flow. King showed that the rate of heat transfer is proportional to the flow velocity as: o= (a + bvos Xr. -T, ) where constants a and b are determined from a calibration of the anemometer. The rate of heat transfer is also given by the electric power consumed to heat up the resistance: Q = R = R,[1+ a(T,wire – T, ]1? where I is the electric current, a is the temperature coefficient of resistance, and R. is the wire resistance at temperature T. Obtain flow velocity as a function of the electric current.

9. A hot-wire anemometer is a heated electric resistance placed in the pipe carry- ing the flow. King showed that the rate of heat transfer is proportional to the flow velocity as: o= (a + bvos Xr. -T, ) where constants a and b are determined from a calibration of the anemometer. The rate of heat transfer is also given by the electric power consumed to heat up the resistance: Q = R = R,[1+ a(T,wire – T, ]1? where I is the electric current, a is the temperature coefficient of resistance, and R. is the wire resistance at temperature T. Obtain flow velocity as a function of the electric current.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.

Question

the title of the book: Engineering Thermofluids Thermodynamics, Fluid Mechanics, and Heat Transfer by: Mahmoud Massoud

9. A hot-wire anemometer is a heated electric resistance placed in the pipe carry-
ing the flow. King showed that the rate of heat transfer is proportional to the flow
velocity as:
g=(a +bv°s {r -T, )
wire
where constants a and b are determined from a calibration of the anemometer.
The rate of heat transfer is also given by the electric power consumed to heat up
the resistance:
Q = Rie = R,[1+a(T,ire - T, ]1?
where I is the electric current, a is the temperature coefficient of resistance, and R,
is the wire resistance at temperature T. Obtain flow velocity as a function of the
electric current.

Science that deals with the amount of energy transferred from one equilibrium state to another equilibrium state.

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