Engineering, 02.12.2019 18:31 barboursj
Acentrifugal pump is used to transport water through a l-inch schedule 40 commercial steel pipe a distance of 250 m and delivers the water to an open storage vessel 20 m above the inlet. both the inlet and outlet are at ambient pressure. the pump has a performance curve given by the expression: hsupply = ao + aj v + a2 v2 + a3 v + a4 v4, with ao = 130.0, aj +0.1371, a2 = -0.3920, a3 = 0.04047, a4 - -0.002058, with h given in feet and v given in gpm. the pipeline includes 5 threaded smooth elbows, one fully open globe valve, and one fully open gate valve. determine the flow rate. show your work.
Answers: 3
Engineering, 03.07.2019 15:10
Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?
Answers: 3
Engineering, 04.07.2019 18:10
Ifa component is made of two or more materials with different modulus of elasticity (e), it is called a composite member and we calculate the factor·n". mention the formula for calculating n". also, ifn> 1, explain what will happen to the 1. transformed.gi) ifn 1, what will happen to the material when transformed material when
Answers: 1
Engineering, 04.07.2019 18:20
Find the kinematic pressure of 160kpa. for air, r-287 j/ kg k. and hair al viscosity of air at a temperature of 50°c and an absolute (10 points) (b) find the dynamic viscosity of air at 110 °c. sutherland constant for air is 111k
Answers: 3
Engineering, 04.07.2019 18:20
Along 8-cm diameter steam pipe whose external surface temperature is 900c connects two buildings. the pipe is exposed to ambient air at 70c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 500c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 100c. a) the length of the tube for an exit temperature of the air to be 40 0c. b)the rate of heat transfer from the air. c) the fan power needed to overcome the pressure drop in this section of the duct.
Answers: 1
Acentrifugal pump is used to transport water through a l-inch schedule 40 commercial steel pipe a di...
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