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A thermal reservoir at 1200 K is separated from another thermal reservoir at 300 K by a cylindrical rod insulated on its lateral surfaces. At steady state, energy transfer by conduction takes place through the rod. The rod diameter is 2 cm, the length is L, and the thermal conductivity is 0.4 kW/m ? K. Plot the following quantities, each in kW, versus L ranging from 0.01 to 1 m: the rate of conduction through the rod, the rates of exergy transfer accompanying heat transfer into and out of the rod, and the rate of exergy destruction. Let T0 5 300 K.
What is the rate of water loss (kg/s) from the first, third, and fourth trays? Estimate the temperature of the water in each of the designated trays.
air at 35degc 105 kpa flows in a 100 mm times 150 mm rectangular duct in a heating system. the volumetric flow rate is
the pliers shown in the figure of the book are used to grip a 0.3-in.-diameter rod. knowing that two 60-lb forces are
Construct a suitable finite element model and compare the FEA predictions with the theoretical data and produce a graph to show the stress distribution
a what is the relative humidity rh of an air parcel with temperature 25degc and absolute humidity 8 gm3? see class 4
a hollow shaft with outer and inner diameters respectively equal to 60mm and 25mm rotates at 240 rpm. determine the
a 1 m3 rigid tank contains a two-phase mixture of saturated liquid water and saturated water vapor at atmospheric
a tank has a volume of 0.35m3 and initially contains saturated vapor at 333 kpa. the valve is next opened and steam
below is measured voltage v at different time stimes 0 0.5 1 1.5 2 2.5
The catapult is used to launch a ball such that it strikes the wall of the building at the maximum height of its trajectory. If it takes 1.5 s to travel from A to B, determine the velocity vA at which it was launched, the angle of release q, and t..
steam at 1.4 mpa and 350 c enters an adiabatic turbine at a rate of 450 kgh. the turbine has an adiabatic efficiency of
The weather channel reports that it is a hot, muggy day with an air temperature of 90°F, a 10 mph breeze out of the south west, and bright sunshine with a solar insulation (i.e. the solar heat source) of 400 W/m2.
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