Engineering, 12.12.2019 00:31 jcazares3558
Consider an air solar collector that is 1 m wide and 6 m long and has a constant spacing of 3 cm between the glass cover and the collector plate. air flows at an average temperature of 45°c at a rate of 0.15 m3/s through the 1-m-wide edge of the collector along the 5-m-long passageway. disregarding the entrance and roughness effects and the 90° bend, determine the pressure drop in the collector. the properties of air at 1 atm and 45° are rho = 1.109 kg/m3, μ = 1.941 × 10–5 kg/m·s, and v = 1.750 × 10–5 m2/s
Answers: 1
Engineering, 04.07.2019 18:10
Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise
Answers: 3
Engineering, 04.07.2019 18:10
Afluid flows with a velocity field given by v=(x/t)i.. determine the local and convective accelerations when x=3 and t=1.
Answers: 2
Engineering, 04.07.2019 18:10
Aplate clutch has a single pair of mating friction surfaces 250-mm od by 175-mm id. the mean value of the coefficient of friction is 0.30, and the actuating force is 4 kn. a) find the maximum pressure and the torque capacity using the uniform-wear model. b) find the maximum pressure and the torque capacity using the uniform-pressure model.
Answers: 3
Engineering, 04.07.2019 18:10
At 12 noon, the count in a bacteria culture was 400; at 4: 00 pm the count was 1200 let p(t) denote the bacteria cou population growth law. find: (a) an expression for the bacteria count at any time t (b) the bacteria count at 10 am. (c) the time required for the bacteria count to reach 1800.
Answers: 1
Consider an air solar collector that is 1 m wide and 6 m long and has a constant spacing of 3 cm bet...
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