A 10-hectare rice land is to be irrigated at the peak water requirement of 10 mm/day. The source of water is pump from a river with outlet discharge directly to the irrigation canal. If the pump operates at 10 hours per day, what should be the capacity of the pump? What should be the size of engine if the total dynamic head is 10 meters. Assume pump efficiency to be 80 percent and engine to be 75 percent.

A 10-hectare rice land is to be irrigated at the peak water requirement of 10 mm/day. The source of water is pump from a river with outlet discharge directly to the irrigation canal. If the pump operates at 10 hours per day, what should be the capacity of the pump? What should be the size of engine if the total dynamic head is 10 meters. Assume pump efficiency to be 80 percent and engine to be 75 percent.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter40: Typical Operating Conditions

Section: Chapter Questions

Problem 10RQ: The seasonal energy efficiency ratio (SEER) includes the energy used in the _____and _____cycles.

See similar textbooks

Similar questions

A pump discharges 50 tons of water per hour to a height of 8 m, overall efficiency of the pumping system being 69%, what is the input and output power?
2. A pump draws water from a lake delivered to a height of 50 meters above the lake and encounters 15 meters of headloss. Determine the pump power requirement in Kilo-Watts to deliver a constant supply of 500 Liters per second? The correct answer has a margin of 1 from exact answer. Velocity head is neglected.
A hydraulic vane pump running at 1800 rpm develops 2 L/s flow at 750 kPa. Volumetric efficiency is .85 and overall efficiency is 0.8. Determine the Actual Torque Required, TÀ (N- m). (Hint: first calculate the mechanical efficiency and theoretical flow rate. Convert rpm to rad/s). O 10.6 N-m O 9.94 N-m O 8.01 N-m O 9.35 N-m O 8.85 N-m
A hydraulic vane pump running at 1800 rpm develops 2 L/s flow at 750 kPa. Volumetric efficiency is .85 and overall efficiency is 0.8. Determine the Theoretical Torque required, TT (N-m). (Hint: first calculate the mechanical efficiency and theoretical flow rate. Convert rpm to rad/s). O 9.41 N-m 8.85 N-m 9.35 N-m 9.62 N-m 8.80 N-m
The BEP for a pump operating at 1750 RPM with a 13-inch impeller is 1000 gpm, 150 ft. Using the pump affinity laws, determine what this pump head would correspond to if pump speed were changed to 2500 RPM.
Q Consider the following data relating toperformance of a centrifugal pump:speed 1200 rpm, flow rate 30 L/s, head 20 m, and power 5 kW. If the speed of the pump is increased to 1500 rpm, assuming the efficiency isunaltered, Find the new flow rate and head.
A pump rated at 65% efficiency is used to transport water from a large open reservoir to a point 10m above at a rate of 450 L/min, into a vented tank. Assuming friction is negligible and that the efficiency of the motor is 77%, how much electricity is required to keep the process running for 24 hours? Choices: A. 29.37 kWh B. 35.28 kWh C. 56.71 kWh D. 43.21 kWh
Q1: Find the pump efficiency if the pressure difference across the pump is 230 kPa. If the outlet 2₁ 14 cm Z2 diameter of the pump is 7 cm, the inlet diameter is twice the outlet diameter. take the mass flow = 50 rate of the pump is equal to 50 kg/s 72. 1 Wate C the pump nmotor = 85 % Motor 20 W
Note: Don't copy from other experts solution. If you don't know the solution please leave it but don't give me wrong solution. A 26-kW motor with 78% efficiency drives a centrifugal pum p delivery 68 L/s against a head of 24 m. Determine the pump efficiency.
FIND THE PERCENT SLIP OF A RECIPROCATING PUMP IF THE VOLUMETRIC EFFICIENCY IS 96%.
Pumps: A centrifugal pump having 4 stages in parallel, delivers 18 kiloliters/min of liquid against a head of 25 m. The diameter of the impellers being 24 cm and the speed of 1800 rpm. A pump is to be made up with a number of stages in series of similar construction to that of the first pump to run at 1250 rpm and to deliver 15 kiloliters/min against a totalhead of 250 m. Find the diameter of the impellers and the number of stages required in this case. Answer: D = 46.63 cm, n = 6 stages
Find the power consumed by a centrifugal pump having the following specification: overall efficiency =70%, discharge=64 liters/s, Head=50m.