Ethylene enters a turbine at 10 bar and 450 k and exhausts
Ethylene enters a turbine at 10 bar and 450 K, and exhausts at (atm) and 325 K. For mass flow in = 4.5 kg s^-1, determine the cost C of the turbine. State any assumptions you make. Data: H1 = 761.1 , H2 = 536.9 kg^-1, C/$ = (15,200)(1W1/kW)^0.573
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50 kmol per hour of air is compressed from p1 = 1.2 bar to P2 = 6.0 bar in a steady-flow compressor. Delivered mechanical power is 98.8KW. Temperature and velocities are: T1= 300K T2= 520K u1= 10m s^-1 u2= 3.5m s^-1
a closed Gaussian surface in the shape of a cube of edge length 3.35 m. What is the net charge (in Coulombs) contained by the cube
Refrigerant 22 is used in the evaporator pipe of a commercial refrigeration unit. At steady state it flows at a rate of 0.5 kg/s through the pipe of constant diameter. It enters the pipe at -10C with a velocity of 5 m/s and a quality of 25%.
An apartment has a living room whose dimensions are 2.9 m x 4.9 m x 6.0 m. what is the mass (in grams) of the air
The Cooper Electronics Company has developed the following schedule of potential investment projects that may be undertaken during the next six months.
Imagine a slide with a radius of 1.5 m and a vertical drop of 2 m per turn. Further suppose that one of my daughters is sliding down at a constant speed of 2 m/s
If the bar is 90 degrees F. If the bar is cooled to 40 degrees F, what is the maximum normal stress in the bar and what is the maximum shear stress alpha = 13*10^-6 /degF, E = 10*10^3 ksi
A train of total mass equal to 500 Megagrams starts from rest and accelerates uniformly to a speed of 90 km/h in 50 s. After reaching this speed, the train travels with a constant velocity.
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