Question

In: Mechanical Engineering

Determine the friction factor, f if water at 71 °C is flowing at 9.1 m/s in...

Determine the friction factor, f if water at 71 °C is flowing at 9.1 m/s in 25.4 mm Schedule 40 steel pipe. Given, roughness, Ɛ = 4.57 X 10-5 m.

Solutions

Expert Solution


Related Solutions

Water at a temperature of 80 °C and velocity of 1.2 m/s is flowing parallel to...
Water at a temperature of 80 °C and velocity of 1.2 m/s is flowing parallel to one side of a smooth flat plate. The plate is maintained at a constant temperature of 24 °C and is 0.8 m long and 0.5 m wide. Determine the following: The heat flux at a distance x = 0.6m from the front edge of the plate, q” = ____________ The location of the maximum heat flux on the plate, x = _________ The total...
Water flowing along a horizontal pipe has a speed of 2.31 m/s and a pressure of...
Water flowing along a horizontal pipe has a speed of 2.31 m/s and a pressure of 4.25 atm. Further along, the pipe narrows so that the cross-sectional area decreases by a factor of 6.17. What is the pressure in the narrow section?
Water flowing at a rate of 0.03 kg/s is heated from 20 to 40°C in a...
Water flowing at a rate of 0.03 kg/s is heated from 20 to 40°C in a horizontal pipe (inside diameter = 3 cm). The inside pipe surface temperature is 70°C. Estimate the convective heat transfer coefficient if the pipe is 1 m long. Assume forced convection conditions.  Ts is not held constant! Properties of Water 20°C 30°C 40°C ρ (kg/m3) 998.2 995.7 992.2 k (W/mK) 0.597 0.615 0.633 μ (Pa s) 993.414 x 10-6 792.377 x 10-6 658.026 x 10-6 Cp...
Develop the formula for friction factor ‘f’. Keeping in mind the Re# should always be in...
Develop the formula for friction factor ‘f’. Keeping in mind the Re# should always be in turbulent region. What value of D should be selected to get turbulent flow. Start the value from 0.01m try to find the value of D to have the turbulent flow. Use Excel Solver tool and demonstrate how it can be used to calculate friction factor ‘f’ for a given Re# and relative roughness ?. The friction factor is desired for water flowing at 0.063...
Air at 40 degrees C is humidified by flowing over a 1-m-long container filled with water....
Air at 40 degrees C is humidified by flowing over a 1-m-long container filled with water. The surface area of container is 0.5m^2.The interfacial temperature is 20 degrees C. If the initial humidity of the air is 0% and its velocity is 0.5 m/s, calculate the mass flow rate of vapor evaporated.
A projectile is launched straight up at 55.5 m/s from a height of 71 m, at...
A projectile is launched straight up at 55.5 m/s from a height of 71 m, at the edge of a sheer cliff. The projectile falls just missing the cliff and hitting the ground below. (a) Find the maximum height of the projectile above the point of firing. m (b) Find the time it takes to hit the ground at the base of the cliff. s (c) Find its velocity at impact. m/s
Air is flowing in a 1.5 m2 wind tunnel at 200 m/s at a pressure of...
Air is flowing in a 1.5 m2 wind tunnel at 200 m/s at a pressure of 250kPa, and temperature of 20°C at the entrance. Calculate: (i) Mach number (ii) Total Temperature (iii) Total Pressure (iv) Mass flow rate of air.
1.) Saturated liquid water flowing at 3kg/s is initialy at 30 bar. a.) this steam is...
1.) Saturated liquid water flowing at 3kg/s is initialy at 30 bar. a.) this steam is throttled through a valve to 9 bar. What is the vapor fraction of the steam after the valve? b.) afterwards, 6.0 MW is added to the steam. What is the final temperature of the steam? What is the entropy change for this heating, in kW/K?
Water at a mean temperature of 80 °C and a mean velocity of 0.15 m/s flows...
Water at a mean temperature of 80 °C and a mean velocity of 0.15 m/s flows inside a 2.5 cm ID and 3.3 cm OD, copper tube. Atmospheric air at 20 °C and a velocity of 10 m/s flows across the tube. Calculate the overall heat transfer coefficient based on the outer surface and the rate of heat loss per 1 m length of the tube for inside and outside fouling factor 0.00018 m2. What is the percent reduction in...
Fluid X is flowing in a circular pipe with a constant velocity ν (m/s). The fluid...
Fluid X is flowing in a circular pipe with a constant velocity ν (m/s). The fluid is cooled by a jacket kept at constant temperature, Tj. Fluid velocity is plug shaped , in other words uniform at radial positions. Assume that temperature is uniform in radial positions because of turbulent flow conditions; ρ and Cp of the fluid are constants. The inlet temperature (at z=0) is constant and uniform at To (To>Tj). Assume that thermal conduction of heat along the...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT