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An H2O boiler is designed to take 7000 lbm/hr in a steady-state process from saturated liquid at 1200 psi to an exit temperature of 900 degrees F. What is the required rate of heat transport for the boiler?
q1 the pressure in an air tank is able to support a water column 15 meter high. find the absolute air pressure in psi
Air enters a one-inlet, one-exit control volume at 6 bar, the pressure is 3 bar, the temperature is 456.5 K, and the velocity is 300 m/s. The air behaves as an ideal gas for steady-state operation, determine: (a) the mass flow rate in kg/s (b) the ex..
refrigerant 134a at 140 f 60c and 125 psia 840 kpa enters the condenser of a chiller at 800lbh .1 kgs and exits as a
A hot water heating system is used to distribute hot water at 70°C through heating pipes with an outside diameter of 60 mm. Estimate the convective heat transfer coefficient (based on unit area, and then on unit length) between the pipe surface and t..
A rigid, insulated vessel contains superheated vapor steam at 3 MPa, 400C. A valve on the vessel is opened, allowing steam to escape. The overall process is irreversible, but the steam remaining inside the vessel goes through a reversible adiabatic e..
An angled jet of water comes out from the ground at 3 m/s at a 45o angle from the horizontal. How high does the water reach? How fast is it going when it reaches back down to the ground? State your assumptions clearly and draw a sketch of how you ima..
consider a 1-cm-diameter and 0.3-m-long copper rod kcopper 400 wm-k with its ends fixed to two parallel surfaces. the
a blower handles 1 kgsec of air at 20 deg c and consumes a power of 15 kw. the inlet and outlet velocities of air are
Consider a Carnot cycle executed in a closed system with air as the working fluid. The maximum pressure in the cycle is 730 kPa while the maximum temperature is 750 K. If the entropy increase during the isothermal heat rejection process is 0.31 kJ/kg..
find the derivative of the following function.y5cos10xx3-2x2-6x10using backward difference and central difference
A differential nitrogen pressure exists across a 2-mm-thick steel furnace wall. After some time, steady-state diffusion of the nitrogen is established across the wall. Given that the nitrogen concentration on the high-pressure surface of the wall is ..
determine the vertical velocity vo with which a ball must be thrown in order for the time of flight to the bottom of
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