Engineering, 19.02.2020 06:03, oliviastokes
A piston-cylinder assembly contains 3 kg of water, initially at 0.06 bar and 160 C. The water undergoes two processes in series: D a constant volume process to saturated vapor followed by a cooling process. At the end of the cooling process, the temperature is 20 C and the water is a liquid-vapor mixture with a quality of 25%. Neglect kinetic and potential energy effects. i. (12) Determine the specific volume and specific internal energy of the water at a the initial state, b. the state at the end of the constant volume process, and li. (4) Sketch the T-v and p-v diagrams showing the key states, the ili (6) Find the work and heat transfer for the constant volume process, both in iv. (3) If 5500 KJ of heat is removed from the system during the cooling, c. the state at the end of the cooling process. processes, and relevant isobars or isotherms, kJ, calculate the work and comment whether this work is done on the system or by the system.
Answers: 1
Engineering, 04.07.2019 18:10, niyawilliams23
Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10
Answers: 1
Engineering, 04.07.2019 18:10, ijohnh14
Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way
Answers: 2
A piston-cylinder assembly contains 3 kg of water, initially at 0.06 bar and 160 C. The water underg...
Mathematics, 18.06.2020 21:57
Mathematics, 18.06.2020 21:57
Mathematics, 18.06.2020 21:57
Mathematics, 18.06.2020 21:57
Mathematics, 18.06.2020 21:57
Mathematics, 18.06.2020 21:57