Water at 35°C is pumped through a horizontal, 200-m-long, 30-mm-diameter tube at 0.25 kg/s. Over time,...

Water at 35°C is pumped through a horizontal, 200-m-long, 30-mm-diameter tube at 0.25 kg/s. Over time, a 2-mm-thick layer of scale of surface roughness e = 200 µ m is deposited on the interior tube wall. Determine the pressure drop from the entrance to the exit of the tube and the required pump power for the clean and fouled conditions.

Expert Solution

samet mamat answered 2 years ago

Water is being pumped through a horizontal pipe that is 36.0 m long and 13.5 cm...

Water is being pumped through a horizontal pipe that is 36.0 m long and 13.5 cm in diameter. A pump maintains a gauge pressure of 742 Pa at a large open tank at one end of the pipe. The other end of the pipe is open to the air. If this pipe is replaced by a second one of length 9 m and diameter 5.0 cm, what gauge pressure must the pump provide to give the same volume flow rate...

A pipe, 900 m long and 200 mm in diameter discharges water to the atmosphere at...

A pipe, 900 m long and 200 mm in diameter discharges water to the atmosphere at a point 10 m below the inlet level. With an inlet pressure of 40 kPa gauge, the flow rate is 40 litres/sec. At a point half way between the pipe inlet and outlet, a new tapping is made from which water is taken at a rate of 18 litres/sec. To what value must the inlet pressure be raised in order to maintain the same...

Ethyl alcohol flows through a horizontal tube having a diameter of 25 mm. If the mean...

Ethyl alcohol flows through a horizontal tube having a diameter of 25 mm. If the mean velocity is 0.18 m/s, what is the magnitude of the pressure drop per unit length along the tube (in Pa/m)? What is the velocity at a distance of 5 mm from the tube axis (in m/s)?

The flowrate for water traveling through a horizontal 300 m-long cast iron pipe with a diameter...

The flowrate for water traveling through a horizontal 300 m-long cast iron pipe with a diameter of 0.6 m and a pressure drop of 17.2 kPa is to be found. P.S. use iterative approach to find values of f and then V using that f.

The mean velocity in an artery of internal diameter 2.5 mm is 0.25 m/s. Assuming that...

The mean velocity in an artery of internal diameter 2.5 mm is 0.25 m/s. Assuming that blood has a viscosity of 0.004 Pa.s and a density of 1000 kg m−3. a) Determine: i. whether the flow is laminar or turbulent ii. the volume flow rate through the artery b) Assume that the diameter of this blood vessel above is doubled, what would happen to the total volumetric flow rate? Explain your response. c) What would happen in terms of type...

R-134a flows in a horizontal 8 mm diameter circular tube. The mass flux is 400 kg/m2s,...

R-134a flows in a horizontal 8 mm diameter circular tube. The mass flux is 400 kg/m2s, the entering quality is 0.0, and the existing quality is 0.8. The tube length is 3 m. Assuming a constant saturation temperature of 20°C, plot the variation of hTP as a function of x.

Air flows through a 0.25-m-diameter duct. At the inlet the velocity is 300 m/s, and the...

Air flows through a 0.25-m-diameter duct. At the inlet the velocity is 300 m/s, and the stagnation temperature is 90°C. If the Mach number at the exit is 0.3, determine the direction and the rate of heat transfer. For the same conditions at the inlet, determine the amount of heat that must be transferred to the system if the flow is to be sonic at the exit of the duct.

Water flows through a cast iron pipe with a diameter of 30 mm. The pipe is...

Water flows through a cast iron pipe with a diameter of 30 mm. The pipe is inclined at an angle of 3 degrees from horizontal and is 40 m long. The water flows due to gravity only. What is the maximum volume flow rate of the water? You may ignore any minor loses.

Air enters a thin-walled, 5-mm diameter, 2-m-long tube at a uniform inlet temperature of 100°C. A...

Air enters a thin-walled, 5-mm diameter, 2-m-long tube at a uniform inlet temperature of 100°C. A constant heat flux is applied to the air from the tube surface. The mean temperature of air at halfway along the tube (at 1 m length) is reported as 126°C. If the tube surface temperature at the exit is 160°C and the local heat transfer coefficient at the exit is 29.5 W/m^2K, determine a) the applied heat flux, b) the rate of energy increase...

A 30 m long pipe with an outside diameter of 75 mm is used to deliver...

A 30 m long pipe with an outside diameter of 75 mm is used to deliver steam at a rate of 2000 kg / hour. The vapor pressure is 198.53 kPa entering the pipe with a quality of 98%. The pipe needs to be given insulation with thermal conductivity of 0.2 W / (m K) so that the vapor quality only slightly decreases to 95%. The outer surface temperature of the insulation is assumed to be 25 ° C. Ignore...

Question