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Ammonia vapor is compressed inside a cylinder by an external force acting on the piston. The ammonia is initially at 30?C, 500 kPa, and the final pressure is 1400 kPa. The following data have been measured for the process:
Determine the work done by the ammonia by summing the area below the P-V process curve. As you plot it, P is the height and the change in volume is the base of a number of rectangles.
a 1000w iron is left on the ironing board with its base exposed to air at 20degrees c. if the surface temperature is
A piston/cylinder arrangement has a load on the piston so it maintains constant pressure. It intially contains 1kg of steam at 500kPa and 50% quality. Heat from a reservoir at 700 C brings the temperature of the steam to 600 C.
A sensitive instrument with mass 113 kg is to be installed at a location where the acceleration is 15.24 cm/(s^2) at a frequency of 20 Hz. It is proposed to mount the instrument on a rubber pad with the following properties: k=2802 N/cm and damping r..
If the tube surface temperature is Ts = 350 K and the gas-side convection coefficient is hg = 30 W/m2 · K, what is the rate of heat transfer to the water per meter of pipe length?
problem i. steam at 5.0 mpa 500 degrees c enters an insulated turbine operating at steady state with a mass flow rate
A steam turbine is operating at a steady state with a mass flow rate of 3682 kg/h at the inlet. The power output of the turbine is 8700 kW. Steam enters the turbine at a pressure of 40 bar, temperature of 320 oC, and with a velocity of 13 m/s. The ex..
The total force Fa + Fb exerted on the shelter is in the direction parallel to the line L and it's magnitude is 400 lb. Graphically determine the magnitudes of Fa and Fb.
Determine the orientation of the neutral axis and calculate the maximum tensile stress σmax due to the load P. Data for the beam are as follows: L= 4.5 m, P = 500 N, and α = 30°.
At a particular location a hot spring is available to provide a heat source for a vapor power cycle of a power station and not far away a melt water river from a glacier is available to provide a heat sink. the hot spring has a flow of 1500 liters/se..
A Pitot-static probe connected to a water manometer is used to measure the velocity of air. If the de?ection (thevertical distance between the ?uid levels in the two arms) is 7.3 cm, determine the air velocity. Take the density of air to be 1.25 k..
Air is compressed steadily in a compressor from 100kPa and 300 K to 1 Mpa and 500 K. The compressor is not well insulated and a heat loss of 40 KJ/kg occurs during the process. Assuming the changes in kinetic and potential energies are negligible, de..
What does it mean if the ACK bit is recessive?
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