Water enters a circular tube whose walls are maintained at constant temperature at a specified flow rate and temperature. For fully developed turbulent flow, the Nusselt number can be determined from Nu = 0.023 %D Re 0.8 0.4 Pr. The correct temperature difference to use in Newton's law of cooling in this case is Select one: a. the log mean temperature difference or LMTD b. the difference between the inlet and outlet water bulk temperature c. the difference between the inlet water bulk temperature and the tube wall temperature d. the difference between the average water bulk temperature and the tube temperature e. None of the choices provided are correct
Water enters a circular tube whose walls are maintained at constant temperature at a specified flow rate and temperature. For fully developed turbulent flow, the Nusselt number can be determined from Nu = 0.023 %D Re 0.8 0.4 Pr. The correct temperature difference to use in Newton's law of cooling in this case is Select one: a. the log mean temperature difference or LMTD b. the difference between the inlet and outlet water bulk temperature c. the difference between the inlet water bulk temperature and the tube wall temperature d. the difference between the average water bulk temperature and the tube temperature e. None of the choices provided are correct
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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PLEASE ANSWER THE ITEMS CORRECTLY
Transcribed Image Text:Water enters a circular tube whose
walls are maintained at constant
temperature at a specified flow rate
and temperature. For fully developed
turbulent flow, the Nusselt number
can be determined from Nu = 0.023
0.8
0.4
Re Pr. The correct temperature
difference to use in Newton's law of
cooling in this case is
Select one:
a. the log mean temperature
difference or LMTD
b. the difference between the
inlet and outlet water bulk
temperature
c. the difference between the
inlet water bulk temperature and
the tube wall temperature
d. the difference between the
average water bulk temperature
and the tube temperature
e. None of the choices
provided are correct
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