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A 1-m3 tank containing air at 25?C and 500 kPa is connected through a valve to another tank containing 4 kg of air at 60?C and 200 kPa (Fig. P3.232). Now the valve is opened and the entire system reaches thermal equilibrium with the surroundings at 20?C. Assume constant specific heat at 25?C and determine the final pressure and the heat transfer.
calculate the mass concentration in microgm3 of a mono-dispersed aerosol with dp 10.0 micron rhop 2.1 g cm-3 and n
the heat transfer coefficient for air flowing over a sphere is to be determined by observing the temperature -time
question 1approximate the torque and power necessary to rotate the inner 20 cm diameter cylinder shown in figure 1. sae
ramjet enginemach number4altitude50000 ftt ambient205 kp11.6 kpah fuel heating value45000 kjkgt peak3000 km mass flow
Ideal Otto and Brayton cycles are operating from sea level atmospheric inlet conditions and a pressure ratio 15:1. Find the thermodynamic efficiencies (nth) for these two cycles. There should be two answers
water with a quality of 70 is contained in a cylinder with a weight on a piston that maintains a water pressure of 500
an accident at a nuclear power plant causes the main valves to close and stop the main water flow that cools the
the l1m long vertical copper tube of inner diameter di20mm and wall thickness t2mm contains liquid water at twater0
determine the average normal stress at the section a-a and the average shear stress at section b-b in member ab. the
What is meant by moisture transfer in refuse management, and why is this important in studies on refuse composition and materials recovery or energy conversion?
Calculate the change of entropy and the heat supplied. Sketch the process on a T-, diagram. Take the isentropic index. y, for nitrogen as 1.4, and assume that nitrogen is a perfect gas. (0.001 25 kJ/K; 0.407 kJ)
Air flows isentropic ally at the rate of 0.5 kg/s through a supersonic convergent-divergent nozzle. At the inlet, the pressure is 680 kPa. the temperature 295 K. and the area is 6.5cm^2. If the exit area is 13 cm*2,
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