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Air at 1.0 atmosphere pressure and 77 0C enters a 5.0 mm i.d. tube with a bulk average velocity of 2.5 m/s. the velocity profile is developed and the thermal profile is developing. The tube length is 1.0 m, and a constant heat flux is imposed by the tube surface on the air over the entire length. An exit air bulk average temperature, T b,o = 127 0C, is required. Determine the exit h, the uniform heat flux and the exit tube surface temperature.
At the end of the isothermalexpansion, the pressure is 600 kPa and the volume is 0.4 m3. Assuming the ideal gas model for air, determine the thermal efficiency.
find the transfer function and resolution for a 10-turn 4.7kohm potentiometer with 3450 degrees of rotation and 0 to 5
the height of an inaccesible mountain peak c must be estimated. fortunately two smaller mountains a and b which can be
i would like to have this problem solved. the problem is here in the attachment. if you have anymore information please
an airplane is flying at v0130 mph and with a constant time rate of increase of speed v22fts2 when it starts to climb
an electrical wire having a diameter of 1.5 mm and covered with a plastic insulation thickness 2.5 mm is exposed to
a sealed rigid container of volume .6 m3 contains water in the form of saturated vapor at 550 kpa. energy in the form
Steam at 15 bar and 350 degrees C is expanded through a 50% reaction turbine to a pressure of 0.14 bar. The stage efficiency is 80% for each stage and the reheat factor is 1.05.
Determine the ideal launch vehicle that can put this orbiter into the parking orbit. (hint: you do not have to consider the Sun in this problem. Only SOI of the Earth and the Moon)
A heat pump with a COP (coefficient of performance) of 2.8 is used to heat an air-tight house. When running, the heat pump consumes 5 kW of power
a particle is moving along a straight line such that when it is at the origin it has a velocity of 8 ms part a if it
determine the slenderness ratio of a 5 m column with built end if its cross section is a circular with a radius of 40 mm and b 50 mm square use the concept of effective length.
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