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A Piston/ cylinder of 0.5 m^3 contains water with quality 50% at 200 kPa. Slow expansion is performed while there is heat transfer and the water is at constant pressure. The process stops when the volume has tripled. Solve for the rest questions with correct units. analysis: a) write out the general energy equation. b) simplify the given problem a) calculate or find the specific volume, temperature, and the specific internal energy for the initial state 1. b) Determine the state (compressed liquid, saturated vapor, superheated vapor, ect.) after the expansion. c) Find the temperature and specific internal energy for the final state 2. d) Calculate the work and the heat transfer. e) indicate the process in the following diagrams with labeled temperature (T1, T2), volumes (V1, V2) and pressure (P) on the curves/lines and axis.
suppose that you have a basin of 35c warm water that you use to run a heat engine that cools its substance with air at
Determine Fourier Number, Compare two identical steel spheres, except the first has a two inch diameter while the second sphere has a four inch diameter. The larger sphere will have a Fourier number approximately
the coefficients of static friction and kinetic friction 0.4, 0.30 between all surface of contact. determine the force p for which motion of the 30kg block is impending if cable AB is attached is shown and removed.
two sites are being considered for wind power generation. on the first site the wind blows steadily at 7 ms for 3000
Rod AB is bent into shape of a circular arc adn is lodged between two pegs D adn E. It supports a load P at end B. Neglecting friction and the weight of the rod, determine the distance c corresponding to equilibrium when a = 1 in and R = 5 in.
determine the specific volume for the following saturated water a 15 psi x0.5 b 90 psi x0.4 c 145 psi x0.3 d 650 psi
liquid water is contained in an insulated rigid container. an electrical resistance heater is inside the device is
a painter is standing on a work platform that is 27 feet above ground level. for fall protection the workers safety
a spherical interplanetary probe of 0.5-m diameter contains electronics that dissipate 150 w. if the probe surface
The nominal breaking strength of the rope is 10,000 lbs. Calculate how much payload this assembly can allowably pick up. Show your work.
water is the working fluid in an ideal rankine cycle. superheated vapor enters the turbine at 8 mpa 480 degrees
consider a cold canned drink left on a dinner table. would you model the heat transfer to the drink as one two or three
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