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Air at 40oC, 1 bar and a volumetric flow rate of 60 m^3/min enters an insulated control volume operating at steady state and mixes with helium entering as a separate stream at 100oC, 1 bar and a volumetric flow rate of 30 m^3/min. A single mixed stream exits at 1 bar. cp,i for air and helium is 1.005 and 5.193 kJ/kg.K, respectively. Ignoring kinetic and potential energy effects and heat transfer and external work, determine for the control volume,
a) the temperature of the exiting mixture,b) the entropy change from the entrance to exit per second.First calculate the mass flow rates from the given volumetric flow rates.
0.2 m3 of saturated liquid r-134a in a piston cylinder is heated at a constant pressure of 800kpa to 50 dcg c. what is
an opaque horizontal plate has a thickness of l21 mm and thermal conductivity k25 wmk. water flows adjacent to the
a 1 m3 tank initially contains air at 300 kpa 300 k. air slowly escapes from the tank until the pressure drops to 100
How do you the bubble point temperature and Vapor mole fractions at the bubble-point for a mixture at 690kPa that is 10.0mol % ethylene, 40.0 mol % ethane, and 50.0 mole % propane. Use the Depriester chart.
A tank with a flat bottom is filled with water to a height of 3.5 meters. what is the pressure at any point at the bottom of the tank? (You can ignore atmospheric pressure when calculating your answer.)
consider the supersonic flow over a flat plate at an angle of attack. as stated the flow direction downstream of the
Determine the temperature at which the liquid in the tank is completely vaporized. Also show the process on a T-v diagram with respect to saturation lines.
A reversible heat engine operates between 875 K and 310 K and drives a reversible refrigerator operating between 310 K and 225 K. the engine receives 2000 kJ of heat and the net work output from the arrangement equals 350 kJ. make calculations for..
is there any difference between the stresses measured at the top of the beam and at the same location on the bottom of the beam?
a cantilevered beam bracket of uniform cross section extends 12 inches from the wall and supports 100 pounds of load at
for each state indicate if the fluid is compressed liquid saturated mixture or superheated vapor. show the state on a
calculate the speed of an iceberg driven by wind on its exposed not submerged surface. model the iceberg as a cylinder
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