Engineering, 21.08.2019 05:30 TatlTael7321
To warm up some milk for a baby, a mother pours milk into a thin-walled glass whose diameter is 6-cm. the height of the milk in the glass is 7-cm. she then places the glass into a large pan filled with hot water at 60°c. the milk is stirred constantly, coefficient between water and the glass is 120w/m°c, determine how long it will take the milk to warm from 3°c to 38°c. take the properties of the milk same as those of water. can the milk in this case be treated as a lumped parameter system? why?
Answers: 1
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Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.
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Amixture of slurry and mud is to be pumped through a horizontal pipe of diameter 500 mm. the fluid behaves as a bingham plastic with a yield stress of 30 pa and viscosity 0.04 pa.s. describe the effects of the shear stress through a transverse section of the pipe by plotting the variation in shear stress and velocity profile: (i) just before the slurry starts to move (ii) as the slurry flows when the pressure gradient is double that in part (i)
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To warm up some milk for a baby, a mother pours milk into a thin-walled glass whose diameter is 6-cm...
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