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Assume the heat source in Problem 3.217 is at 300?C in a setup similar to Fig. P6.182. Find the heat transfer and the entropy generation.
Problem 3.217
A rigid tank A of volume 0.6 m3 contains 3 kg of water at 120?C, and rigid tank B has a volume of 0.4 m3 with water at 600 kPa, 200?C. The tanks are connected to a piston/cylinder initially empty with closed valves as shown in Fig. P3.217. The pressure in the cylinder should be 800 kPa to float the piston. Now the valves are slowly opened and heat is transferred so that the water reaches a uniform state at 250?C with the valves open. Find the final volume and pressure, and the work and heat transfer in the process.
if each cord can sustain maximum tension of 50N before it fails, determine the greatest weight of the flower pot the cords can support
a 300 lb block is supported by a rope that was wrapped 1 1/2 times around a horizontal rod. Knowing that the coefficient of static friction is .15 determine the range of values of P for which equilibrium is maintained
Two aluminium bars (E = 70 GPa) are attached to regid support at the left and a cross-bar at the end. An iron bar (E = 200 GPa) is at attached to the rigid support at the left and there is a gap b = 0.6 mm between the right end of the iron bar and cr..
A reservoir has a capacity of 2.75 million acre-ft. How many years would this supply a city of 100,000 people if evaporation is neglected. Assume a use rate of 180 gpcd.
What are the functions of the rectifier and the regenerator in an absorption refrigeration system?
A pressure cooker maintains a constant pressure while food cooks in a water-steam mixture. If the pressure is higher than atmospheric, the water in the cooker boils at a higher temperature and makes cooking faster.
water is flowing at a velocity of 10ft/s and a depth of 10ft in a channel of rectangular section. find the change in depth and in absolute water level produced by a smooth upward step of 1 ft. a smooth downward step of 1 ft in the channel bed.
What is the change in internal energy for a piston and cylinder system initally containing 0.5m^3 of helium at 100kPa and 5C being compressed to 200kPa
All drawings shall be composed on 18" X 24" Mylar/Vellum paper; each drawing shall be executed at the same scale, shall be selected on the basis of their prescriptive possibilities, shall be composed on a graphic design grid system
The base engine develops 200 ft-lb of torque, and a modified version of the engine develops 240 ft-lb of torque. If the overall gear reduction ratio is 8 to 1, what is the maximum acceleration from rest (in ft/sec^2) for:
An industrial wastewater is discharged into a river about 0.5 km downstream from an outfall (discharge) coming from a desalination plant. Upstream of the desalination plant's outfall the river has a flow of 17.8 m3/sec and a total dissolved solids
You are asked to design a horizontal curve for a two-lane road. The road has 12-ft. lanes. Due to expansive excavation, it is determined that a maximum of 34 ft. can be cleared from the road's centerline toward the inside
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