Question

In: Mechanical Engineering

Air, with density of 0.00237 slug/ft3 and a kinematic viscosity of 0.000157 ft2/s, is forced through...

Air, with density of 0.00237 slug/ft³ and a kinematic viscosity of 0.000157 ft²/s, is forced through a horizontal square 9-by 9-in duct 100 ft long at 25 ft³/s. Find the pressure drop if the relative roughness is 0.0003 ft.

Select one:

a.
5.5 lbf/ft²

b. 1.5 lbf/ft²

c. 40 lbf/ft²

d. 15 lbf/ft²

Expert Solution

samet mamat answered 1 year ago

(20pts) Glycerin has a density of 2.46 slug/ft3, a viscosity of 0.02 lbf∙s/ft2, and flows through...

(20pts) Glycerin has a density of 2.46 slug/ft3, a viscosity of 0.02 lbf∙s/ft2, and flows through a 10-in.-diameter pipe at 3 ft/s. The pipe is 20ft long. Based on its units, which viscosity was given, kinematic or dynamic? What is the Reynolds number? Is the flow laminar, turbulent, or transitional? Ans. Re≈300. What is the friction factor? What is the head loss in 20ft of pipe in units of feet? Ans. Approx. 0.7ft.

In a plant density by: 0.97 KGM/s and viscosity 0.03 KGM / s with a pipeline...

In a plant density by: 0.97 KGM/s and viscosity 0.03 KGM / s with a pipeline from tank to tank he's being transported. The pipe used in the line is made of cast iron ( = 0.12 mm). One in the transplant line there are pump units. One fully open sliding valve (KSV=3.2) and one before pumping on the line the piece has a 90° standard bracket (K90=2.2). The inner diameter of the pipe used even before the pump is...

The head loss of a water of kinematic viscosity 1x10^-6 m^2/s in a 50mm diameter pipeline...

The head loss of a water of kinematic viscosity 1x10^-6 m^2/s in a 50mm diameter pipeline was 0.25m over a length of 10 m at a discaherge of 2L/s. What is the corresponding discharge and hydraulic gradient when oil of kinematic viscosity 8.5x10^-6 m2/s flows through a 250mm diameter pipeline of the same relative roughness.

Oil, with ρ = 1100 kg/m3 and kinematic coefficient of viscosity ν = 0,00001 m2/s,flows at...

Oil, with ρ = 1100 kg/m3 and kinematic coefficient of viscosity ν = 0,00001 m2/s,flows at qv = 0,2 m3/s through 500 m of 200-mm diameter smooth pipe. Determine (a) the head loss and (b) the pressure drop This question pertains to Fluid Flow in the Chemical Engineering Department. The response is required within 30 minutes

Q1Which muscle(s) is involved in forced exhalation.?? Q2True or False: Air will flow into the lungs...

Q1Which muscle(s) is involved in forced exhalation.?? Q2True or False: Air will flow into the lungs when the intrapulmonary pressure is greater than atmospheric pressure. questions3 As a general rule, vital capacity with. height and .with age. .Q4 Which period of pulmonary ventilation is a passive process?

Air flows through this tube at a rate of 1400cm3/s . Assume that air is an...

Air flows through this tube at a rate of 1400cm3/s . Assume that air is an ideal fluid. What is the height h of mercury in the right side of the U-tube?

consider the air flowing over a flat plate of length L=1m. air's propertis Density=1Kg/m^3 Cp=1000j/KgK viscosity=10^-5Kg/ms...

consider the air flowing over a flat plate of length L=1m. air's propertis Density=1Kg/m^3 Cp=1000j/Kg*K viscosity=10^-5Kg/m*s k=0.1W/m*C If length is 0.5m, heat flux = 3000W/m^2 average heat flux =4500W/m^2 the plate temperature 20 degrees (a) whay is flow?(Laminar or Turburlent of mixed) (b) what is the possible range Air velocity? (c) relationship Temperature air and Velocity air

Common data g = 9.81 m/s². The standard properties of water are density: ϱH2O=1kg/dm3ϱH2O=1kg/dm3 exactly, kinematic...

Common data g = 9.81 m/s². The standard properties of water are density: ϱH2O=1kg/dm3ϱH2O=1kg/dm3 exactly, kinematic viscosity: νH2O=1.02⋅10−6m2/sνH2O=1.02⋅10−6m2/s. Lubrication oil is pumped at a rate of 30.5 cm³/s through a 13 m long D = 7.5 mm diameter pipe on a steam engine. The pipe roughness is ε = 1.5 µm. The density of the lubricating oil is 960 kg/m³, its dynamic viscosity at 25 °C is 4 Pa·s. Do not forget to tick the appropriate units! What is the...

An 80 kg skydiver falls through air with a density of 1.15 kg/m3 . Assume that...

An 80 kg skydiver falls through air with a density of 1.15 kg/m3 . Assume that his drag coefficient is C=0.57. When he falls in the spread-eagle position his body presents an area A1=0.94 m2 to the wind, whereas when he dives head first, with arms close to the body and legs together his area is reduced to A2=0.21 m2 . What are the terminal speeds in both cases?

3) Air flows steadily at the rate of 0.4 kg/s through an air compressor, entering at...

3) Air flows steadily at the rate of 0.4 kg/s through an air compressor, entering at 6 m/s with a pressure of 1 bar and a specific volume of 0.85 m3/kg, and leaving at 4.5 m/s with a pressure of 6.9 bar and a specific volume of 0.16 m3/kg. The internal energy of air leaving is 88 kJ/kg greater than that of the air entering. Cooling water in a jacket surrounding the cylinder absorbs heat from the air at...