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Problem 3) The 35 in pump of Fig. 11.7b in your text is used to pump...
Problem 2 (25 points) A pump operating at 1170 rpm discharges 2000 gpm at a total...
Problem 2 (25 points) A pump operating at 1170 rpm discharges 2000 gpm at a total head of 109 feet. If the pump speed is increased to 1770 rpm, what is the brake horsepower (BHP, in kW) if the pump efficiency is 72% at the new pump speed? Water temperature is 70 °F. Round your answer to the nearest whole kilowatt. (Conversion factor: 1 horsepower = 745.7 W)
Problem 2 (25 points) A pump operating at 1170 rpm discharges 2000 gpm at a total...
Problem 2 (25 points) A pump operating at 1170 rpm discharges 2000 gpm at a total head of 109 feet. If the pump speed is increased to 1770 rpm, what is the brake horsepower (BHP, in kW) if the pump efficiency is 72% at the new pump speed? Water temperature is 70 'F. Round your answer to the nearest whole kilowatt. (Conversion factor: 1 horsepower = 745.7 W)
A pump operating at 1170 rpm discharges 2000 gpm at a total head of 109 feet....
A pump operating at 1170 rpm discharges 2000 gpm at a total head of 109 feet. If the pump speed is increased to 1770 rpm, what is the brake horsepower (BHP, in kW) if the pump efficiency is 72% at the new pump speed? Water temperature is 70 °F. Round your answer to the nearest whole kilowatt. (Conversion factor: 1 horsepower = 745.7 W)
Problem 5: The 28-in-diameter pump in the Figure at 1170 r/min is used to pump water at 20°C through a piping system at 14,000 gal/min. (a) Determine the required brake horsepower. The average fricti...
Problem 5: The 28-in-diameter pump in the Figure at 1170 r/min is used to pump water at 20°C through a piping system at 14,000 gal/min. (a) Determine the required brake horsepower. The average friction factor is 0.018. (b) If there is 65 ft of 12-in-diameter pipe upstream of the pump, how far below the surface should the pump inlet be placed to avoid cavitation? Given that the water at 20 °C has a specific weight of 62.4 lbf/ft and vapor...
08 % Problem 4 (25 points) A 38-in pump is installed for the system below. The...
08 % Problem 4 (25 points) A 38-in pump is installed for the system below. The pipe (100-cm diameter) has a friction factor of 0.012 and a total length of 20 km. Given that Ke = 0.5 (pipe entrance) and Ke = 1.0 (pipe exit). For water at 80 degrees Fahrenheit, estimate the flow rate (in gpm), the power required (in horsepower, HP), and the net positive suction head required (in ft) to avoid cavitation for the system when the...
when a laboratory test was carried out on a pump, it was found that, for a pump total head of 36m at a discharge of 0.05...
when a laboratory test was carried out on a pump, it was found that, for a pump total head of 36m at a discharge of 0.05cubic meters per second, cavitation began when the sum of the static pressure plus the velocity head at inlet was reduced to 3.5m. the atmospheric pressure was 750mmHg and the vapor pressure of water was 1.8kPa. if the pump is to operate at a location where atmospheric pressure is reduced to 620mmHg and the vapour...
A 38-in pump is installed for the system below. The pipe (100-cm diameter) has a friction...
A 38-in pump is installed for the system below. The pipe (100-cm diameter) has a friction factor of 0.012 and a total length of 20 km. Given that Ke = 0.5 (pipe entrance) and Kε = 1.0 (pipe exit). For water at 80 degrees Fahrenheit, estimate the flow rate (in gpm), the power required in horsepower, HP), and the net positive suction head required (in ft) to avoid cavitation for the system when the pump running. Elevation = 180 m...
A centrifugal pump is placed above a reservoir as shown below. If the NPSHR is 17...
A centrifugal pump is placed above a reservoir as shown below. If the NPSHR is 17 ft and the flow rate is 32 ft3/s, determine the maximum height, 21, that the pump can be located above the reservoir surface without cavitation. Assume that the total head loss between the tank and pump inlet is 10 ft. The diameter of the pipe on the suction side of the pump is 12 inches. The reservoir surface is at atmospheric pressure, Patm =...
A 38-in pump is installed for the system below. The pipe (100- cm diameter) has a...
A 38-in pump is installed for the system below. The pipe (100- cm diameter) has a friction factor of 0.012 and a total length of 20 km. Given that K = 0.5 (pipe entrance) and K. = 1.0 (pipe exit). For water at 80 degrees Fahrenheit, estimate the flow rate (in gpm), the power required (in horsepower, HP), and the net positive suction head required (in ft) to avoid cavitation for the system when the pump running. Elevation = 180...
A centrifugal pump is pumping water at a rate of 35.55 gal/min. The pressures at the...
A centrifugal pump is pumping water at a rate of 35.55 gal/min. The pressures at the inlet, and outlet of the pumps are -2.26 psig and 7.715 psig respectively. The outlet pipe is placed 10 inches higher than the inlet pipe. The inlet and outlet diameters of the pipe are 1.85 in and 1.6 in respectively and the torque produced by the pump rotating at 1593 rpm is 3.172 ft.Ibf. Calculate the following in SI units: a) Total head b)...
Problem 2 (25 points) A pump operating at 1170 rpm discharges 2000 gpm at a total head of 109 feet. If the pump speed is increased to 1770 rpm, what is the brake horsepower (BHP, in kW) if the pump efficiency is 72% at the new pump speed? Water temperature is 70 °F. Round your answer to the nearest whole kilowatt. (Conversion factor: 1 horsepower = 745.7 W)
Problem 2 (25 points) A pump operating at 1170 rpm discharges 2000 gpm at a total head of 109 feet. If the pump speed is increased to 1770 rpm, what is the brake horsepower (BHP, in kW) if the pump efficiency is 72% at the new pump speed? Water temperature is 70 'F. Round your answer to the nearest whole kilowatt. (Conversion factor: 1 horsepower = 745.7 W)
A pump operating at 1170 rpm discharges 2000 gpm at a total head of 109 feet. If the pump speed is increased to 1770 rpm, what is the brake horsepower (BHP, in kW) if the pump efficiency is 72% at the new pump speed? Water temperature is 70 °F. Round your answer to the nearest whole kilowatt. (Conversion factor: 1 horsepower = 745.7 W)
Problem 5: The 28-in-diameter pump in the Figure at 1170 r/min is used to pump water at 20°C through a piping system at 14,000 gal/min. (a) Determine the required brake horsepower. The average friction factor is 0.018. (b) If there is 65 ft of 12-in-diameter pipe upstream of the pump, how far below the surface should the pump inlet be placed to avoid cavitation? Given that the water at 20 °C has a specific weight of 62.4 lbf/ft and vapor...
08 % Problem 4 (25 points) A 38-in pump is installed for the system below. The pipe (100-cm diameter) has a friction factor of 0.012 and a total length of 20 km. Given that Ke = 0.5 (pipe entrance) and Ke = 1.0 (pipe exit). For water at 80 degrees Fahrenheit, estimate the flow rate (in gpm), the power required (in horsepower, HP), and the net positive suction head required (in ft) to avoid cavitation for the system when the...
A 38-in pump is installed for the system below. The pipe (100-cm diameter) has a friction factor of 0.012 and a total length of 20 km. Given that Ke = 0.5 (pipe entrance) and Kε = 1.0 (pipe exit). For water at 80 degrees Fahrenheit, estimate the flow rate (in gpm), the power required in horsepower, HP), and the net positive suction head required (in ft) to avoid cavitation for the system when the pump running. Elevation = 180 m...
A centrifugal pump is placed above a reservoir as shown below. If the NPSHR is 17 ft and the flow rate is 32 ft3/s, determine the maximum height, 21, that the pump can be located above the reservoir surface without cavitation. Assume that the total head loss between the tank and pump inlet is 10 ft. The diameter of the pipe on the suction side of the pump is 12 inches. The reservoir surface is at atmospheric pressure, Patm =...
A 38-in pump is installed for the system below. The pipe (100- cm diameter) has a friction factor of 0.012 and a total length of 20 km. Given that K = 0.5 (pipe entrance) and K. = 1.0 (pipe exit). For water at 80 degrees Fahrenheit, estimate the flow rate (in gpm), the power required (in horsepower, HP), and the net positive suction head required (in ft) to avoid cavitation for the system when the pump running. Elevation = 180...
A centrifugal pump is pumping water at a rate of 35.55 gal/min. The pressures at the inlet, and outlet of the pumps are -2.26 psig and 7.715 psig respectively. The outlet pipe is placed 10 inches higher than the inlet pipe. The inlet and outlet diameters of the pipe are 1.85 in and 1.6 in respectively and the torque produced by the pump rotating at 1593 rpm is 3.172 ft.Ibf. Calculate the following in SI units: a) Total head b)...
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