Engineering, 17.07.2020 06:01 madinaxoxo605
Consider a heated sphere at 127oC. Using 27oC air as the ambient fluid plot the convection coefficient of heat transfer, h, due to free convection as a function of the diameter (for 0.1 mm < D < 100. mm). Use log-log plot. (20% Professional look, 25% Accuracy) Include a typed derivation of the calculations used. Include all units.
Answers: 3
Engineering, 04.07.2019 18:10
Water at the rate of 1 kg/s is forced through a tube with a 2.5 cm inner diameter. the inlet water temperature is 15°c, and the outlet water temperature is 50°c. the tube wall temperature is 14°c higher than the local water temperature all along the length of the tube. what is the length of the tube?
Answers: 3
Engineering, 04.07.2019 18:20
Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?
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Engineering, 04.07.2019 18:20
For a gate width of 2 m into the paper, determine the force required to hold the gate abc at its location.
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Engineering, 04.07.2019 19:10
Aplate of dimensions 3 m x 3 m is placed 0.37 mm apart from a fixed plate. the plate requires a force of 2n to move at speed of 45 cm/s. evaluate the viscosity of the fluid in between the plates
Answers: 3
Consider a heated sphere at 127oC. Using 27oC air as the ambient fluid plot the convection coefficie...
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