Engineering, 07.03.2020 05:22 beccca16

The air-handling system for a large indoor sky diving (vertical) wind tunnel has a fan at the inlet (bottom), and a test section (where the users fly) with a circular crosssection of 5.5 m diameter. The designers want to achieve a 200 km/hr wind speed, with the air in the test-section nominally at 22 ºC and 1.0 bar. How much air (mass flow rate) will the fan that runs the wind tunnel have to supply to meet these conditions? If the pressure of the air at the exit of the wind tunnel is 0.2 psi lower than the pressure in the test section, what would be the air velocity at the exit, assuming the air temperature remained at 22 ºC?

Answers: 2

Show answers

Another question on Engineering

Engineering, 04.07.2019 18:20

Find the minimum film thickness for a journal bearing with the data below. shaft diameter, d-50 mm, clearance ratio, cdratio? 0.001, shaft speed, n 2000 rpm; bearing length. i 200 mm; eccentricity ration, ? -0.55. ( note, cdratio-ca/d) the minimum film thickness is um

Answers: 2

Answer

Engineering, 04.07.2019 19:10

Afoot bridge is made as a simple deck, 4 m long, with a cross section 2 m (wide) and 20 cm thick, and made of wood. the deck is supported at the two ends. the maximum load allowable on the bridge is 10 tons, provided it is uniformly distributed on the deck. to sense this load, a strain gauge is placed at the center of the bridge and its resistance is monitored. if the sensor has a nominal resistance of 350 s2 and a gauge factor of 3.6, what is the reading of the strain gauge at maximum load? the modulus of elasticity for the wood used in the construction is 10 gpa.

Answers: 2

Answer

Engineering, 04.07.2019 19:10

Asteel wire of 2 mm diameter is fixed between two points located 2 m apart. the tensile force in the wire is 250n, if its density of steel is given by 7830 kg/m3 the fundamental frequency of vibration hz? ?

Answers: 3

Answer

Engineering, 04.07.2019 19:20

Air at a pressure of 1atm and a temperature of 40 c is in parallel flow over the top surface of a flat plate that is heated to a uniform temperature of 120 c. the plate has a length of 0.40m (in the flow direction) and a width of 0.15m. the reynolds number based on the plate length is 50, 000. what is the rate of heat transfer from the plate to the air? if the free stream velocity of the air is doubled and the pressure is increased to 10 atm what is the rate of heat transfer?

Answers: 2

Answer

You know the right answer?

The air-handling system for a large indoor sky diving (vertical) wind tunnel has a fan at the inlet...

Questions