1.) A pump operating at 1205 rpm discharges 2360 gpm at a total head of 113 feet. If the pump speed is increased to 1380 rpm, then what is the corresponding brake horsepower (BHP) if the pump efficiency is 65%?
1.) A pump operating at 1205 rpm discharges 2360 gpm at a total head of 113 feet. If the pump speed is increased to 1380...
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)
5.) A pump operating at 1170 rpm discharges 2000 gpm at a total head of 109 feet. If the pump speed is increased to 1300 rpm, then what is the corresponding brake horse power (HP) if the pump efficiency is 63%?
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)
#1 plz
HW24 、049 wish to design a pumping system with an effective head (total dynamic head - TDH is to be 90 gpm. a. If the system is lossless what is the required input power in Watts? b. If the system has an efficiency of 58% what is the input power in Watts? 2. Recall the system layout at the top of Page 1 in WS24. The input electrical power is 2600 W. The motor is an induction motor...
Please answer question 7:
A centrifugal pump discharges 500 GPM through a 12-inch diameter
impeller. The fluid leaves the impeller with a
tangential velocity of 17 ft/sec. If water, @ 68°F,
enters the impeller via radial flow (I.E. no whirl), and the inner
radius and thickness of the impeller are
1.75-inches. (Assume a constant thickness of the
impeller) and if the pump speed is 1775 rpm, with a head loss of
4.5-feet. What is the horsepower input to the flow by
the pump?
QUESTION...
3. The manufacturers rating for a centrifugal pump shows that the pump delivers 160 gpm at 80 ft of head when the pump speed is 3000 rpm. This rating is for the best operating point of the pump: the efficiency at this point is 59 percent. (be careful with units) (a) Calculate the specific speed of the pump. (b) What is the horsepower required to operate the pump at the manufacturers rating? (c) A 1.8 horsepower motor with a speed...
Problem 3) The 35 in pump of Fig. 11.7b in your text is used to pump Qi-24000 GPM of water (68 F) at ni 710 rpm from a very large tank whose surface is at atmospheric pressure. The head loss, hr, from the tank surface to the pump inlet is estimated to be 3 ft a) Calculate the maximum height in feet where the pump should be placed above the tank to avoid cavitation, and b) What is the total...
4) If a 60kW pump is operating at 1200 RPM, and has a Head of 250 ft, and an 8 impeller, what happens to the Head, Power, and speed if the impeller is increased by 50%?
4) If a 60kW pump is operating at 1200 RPM, and has a Head of 250 ft, and an 8 impeller, what happens to the Head, Power, and speed if the impeller is increased by 50%?
6.) A selected pump operates at 1750 rpm and delivers 4135 gpm at 248 feet of head with a 16-inch impeller. The design of the system requires that the pump deliver only 3700 gpm. What is the new impeller diameter to meet the design flow rate?