The system curve follows the equation: hp =115.2 + 0.086Q², in which the pump head isin ft, and the discharge is in GPM. The systemoperates to deliver water (10°C) at 100 GPM.After 10 hours, the energy consumption is 20kWh. What is most approximately the pumpefficiency during this period?

Answered: The system curve follows the equation:…

The system curve follows the equation: hp = 115.2 + 0.086Q², in which the pump head is in ft, and the discharge is in GPM. The system operates to deliver water (10°C) at 100 GPM.

Sustainable Energy

2nd Edition

ISBN:9781337551663

Author:DUNLAP, Richard A.

Publisher:DUNLAP, Richard A.

Chapter17: Energy Conservation

Section: Chapter Questions

Problem 14P

See similar textbooks

Related questions

Q: Reservoir B in the figure receives 0.06 m³/s of flow. Determine the flow in line DC. Do not write…

Q: Ex. Drive the Bernoulli eg. For the fig. show the discharge flow 0.5m3/sec and find h density of…

A: Given data - pw = 1000 kg/m3 phg= 13600 kg/m3 Q = 0.5 m3/s Find out - Value of h ?

Q: A centrifugal pump delivers water at the rate of 50 kg/s. The inlet and outlet pressures are 2 bar…

A: A Centrifugal pump is a machine that converts rotational kinetic energy into hydrodynamic energy.

Q: An agricultural land install a pump with a 218mm diameter suction pipe and a 200mm diameter…

A: Let's suppose, the suction side as point A and the discharge side as point B, and the vertical…

Q: A pump delivers water at a flow of 10 cubic feet per second (cfs) from a lower reservoir to an upper…

A: Discharge Q=10 ft3/s=0.283168 m3/sec diameter d=16 in=1.33 ftarea A=π4×d2=π4×16122=1.396 ft2…

Q: A liquid whose specific gravity is 2.0, is flowing in a 150mm diameter pipe. The total head at a…

Q: Water is flowing in the straight 100mm diameter coated cast iron as shown in the figure. Due to…

A: Given data: D=100 mm =0.1m L=180 m

Q: A pump is to deliver 80 GPM of water at a density of 61. 83lb/ft cubed with a discharge pressure of…

A: Given Discharge Q=80 GPM=80×0.000063 m3/sec=0.00504 m3/swater unit wt γ=61.83 lb/ft3=9.71…

Q: The water tank shown below is being filled through section 1 and maintained at level h =5m. The flow…

A: Given data in question Depth Water Diameter To find out Velocity V1

Q: What is the head that must be supplied by the pump to the water to pump 0.4 m³/s from the lower to…

A: step 1-

Q: Problem 3: A pump is place in a pipe system, the system equation/energy equation is given by h,…

Q: 299 PROBLEM: Determine the discharge of the system shown if the loss of head between A and D is 5.40…

Q: SUPPLEMENTARY QUESTION The figure shows two reservoirs connected by a pipe. The discharge rate in…

Q: servoirs A, B and C, respectively, and meet at junction D. The elevation of A is 300 m while that of…

A: Given Discharge through pipe 2 = 560 l/s

Q: Situation 2: The figure shown below shows a pump drawing water from a reservoir and discharging it…

Q: Oil (s=0.80) and viscosity (u = 0.098 Pa - sec) flow from a reservoir of surface elevation 100…

Q: Water flows through a set of pipes from a reservoir to the point of use, 12.5 m below the water…

Q: A single acting reciprocating pump has the plunger diameter of 20 cm and stroke of 30 cm. The pump…

A: A) Diameter of plunger = 20 cm Stroke has a diameter = 30 cm Discharge from pump = 0.53 m3 per…

Q: 2. In the figure shown, a liquid is pumped from reservoir A to tank B by a 12 hp pump having an…

Q: A 500 mm diameter pipe carries water at L/s. A pump in the pipe is used to move the water from point…

A: d (diameter of pipe) = 500mm = 0.5m Q (discharge) = 500L/s = 0.5m3/s

Q: Question 4: A. For the system shown in the figure, select the proper pump that has the best…

A: Given, CHW = 150 D = 100 mm

Q: PROBLEM 10: A circular orifice is located 5m. below the water surface. If the tank is large and the…

Q: Fig. 2. Assume constar factors, with f = 0.018. The head-discharge relation for the pump is Hp =…

Q: A pump delivers water from a tank A to tank B. The suction pipe is 45 m long (friction factor…

Q: A centrifugal pump having outer diameter equal to two times the inner diameter and running at 1000…

A: Running speed = 1000 rpmTotal head = 40 mVelocity of flow = 2.5 m/sVane angle = 40 degreeDiameter of…

Q: A nozzle of inner radius 1.06 mm is connected to a hose of inner radius 9.05 mm. The nozzle shoots…

Q: a circular orifice is located 5m below the water surface. if the tank is large and the diameter of…

Q: .80 Water (p = 62.4 lbm/ft³) flows from the large orifice at the ottom of the tank as shown. Assume…

A: To find pressure difference at point A and B

Q: A liquid of specific gravity SG = 1.76 flows in a 77 mm diameter horizontal pipe. The total energy…

Q: 2. A pump draws 20 lit/sec of water from reservoir A to reservoir B as shown, assuming f=0.02 for…

Q: The system presented on Figure 1 pumps water from the left reservoir to ensure a water in the…

A: Do = 0.075 m h = 1.2 m L = 20 m CHW = 130 D = 0.15 m

Q: The pump whose charact H, = 80 – 600V² %3! n = -1500V² + 700V

A: Given:- To find:- a) The volumetric flow rate b)The efficiency at operating point

Q: Water is designed to flow in a 50mm diameter galvanize iron pipe (e=0.3mm, C=130) of total length…

A: Answer We can determine the flow rate in pipe using the Bernoulli's Energy equation Let us apply…

Q: Determine the flow distribution of water

A: junctions (j = 2), pipes (p=5), and fixed grade nodes (f=3). Hence the number of closed loops is, L…

Q: Point A in the suction pipe is 1 m below the pump. It is mounted with anopen manometer which reads a…

A: When the liquid in the motion it possess three energy like kinetic, pressure and potential energy.…

Concept explainers

Storm Sewers and Detention

The storm drains system transports rainwater or stormwater and other runoff from roads, parking lots, and roof downpipes directly to nearby creeks, rivers, or the sea without any treatment.

Question

The system curve follows the equation: hp =
115.2 + 0.086Q², in which the pump head is
in ft, and the discharge is in GPM. The system
operates to deliver water (10°C) at 100 GPM.
After 10 hours, the energy consumption is 20
kWh. What is most approximately the pump
efficiency during this period?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

SHOW THE SOLUTION. WHY THE ANSWER BECAME -2.72 J/N. SHOW CORRECT FIGURE.
Fluid mechanics
2. A centrifugal pump delivers 700 L/s of water against an elevation head of 40m when rotating at the angular velocity of 2450 rpm. If the torque measured at the driving shaft of the pump is 1650 N.m, determine the efficiency of the pump. If the pump is being operated by a 600 kW motor, what is the efficiency of the motor? What is the overall system efficiency?
An oil pump is drawing 18 kW of electric power while pumping oil with density 860 kg/m³ at a rate of 0.1 m³/s. The inlet and outlet diameters of the pipe are 8 cm and 17 cm, respectively. If the pressure rise of oil in the pump is measured to be 250 kPa and the motor efficiency is 95 percent, determine the mechanical efficiency of the pump. Take the kinetic energy correction factor as 1.05. Pump 8 cm Docm ΔΡ = 250 kPa 18 kW s Motor Oil 0.1 m³/s The mechanical efficiency of the pump is %.
As shown in the figure, a hydraulic jump occurred at the end of spillway, the depth of water (12) and velocity of water (V₂) after the jump are (11m) and (2.9 m/see) respectively. - Find the dissipated energy (AE) in this jump. Hint for you:- Y1V1=Y2V2 v/s wil 4100 1011 √₂-2-91 13
An oil pump is drawing 18 kW of electric power while pumping oil with density 860 kg/m3 at a rate of 0.1 m3/s. The inlet and outlet diameters of the pipe are 8 cm and 20 cm, respectively. If the pressure rise of oil in the pump is measured to be 250 kPa and the motor efficiency is 95 percent, determine the mechanical efficiency of the pump. Take the kinetic energy correction factor as 1.05. 18 kW Docm Pump Motor 8 сm Oil AP = 250 kPa 0.1 m/s The mechanical efficiency of the pump is |%.
In the figure shown below, it is desired to pump 5408732 lit/day of water from a stream to a pool. El. A = 60m while El. B = 92 m. If the combined pump and motor efficiency is 81%, calculate the monthly power cost in pesos if electricity rate is P12 per kW-hr. Assume that the pump operates for 24 hours and take 1 month = 31 days; Pipe 1: 1613 m, 223 mm, 128 (Length, diameter, Hazen Coefficient) Pipe 2: 1987 m, 287 mm, 123 (Length, diameter, Hazen Coefficient) Pipe 3: 813 m, 206 mm, 134 (Length, diameter, Hazen Coefficient) Round your answer to 4 decimal places.
A single acting reciprocating pump operating at 140 rpm has a piston diameter of 220 mm and stroke of 350 mm. The suction and delivery heads are 5 m and 22 m, respectively. If the efficiency of both suction and delivery strokes is 85 percent, then the kW. (upto three decimal places). ( Take ywater power required by the pump will be = 9810 N/m³).
Problem 3 Water (20°C) is pumped through the 300-mm steel pipe from the lower tank to the upper one at a rate of 0.4 m³/s. Given that the pump efficiency is 65% and the pump is on for 5 hours each day, what will be the monthly (30 days) energy cost for the pump if the electricity rate is 0.5 USD per kWh? Assume α = 1.0 throughout. Elevation=235 m 10 m 50 m Elevation 200 m = 300 mm r = 300 mm 100 m
pls answer completely
A flocculation tank contains 1800 m³ of water, which is mixed using paddles at an average velocity gradient G of 100/s. The water temperature and the corresponding dynamic viscosity are 30°C and 0.798x10-³ Ns/m², respectively. The theoretical power required to achieve the stated value of G (in kW, up to two decimal places) is
A flocculation tank contains 1800 m³ of water, which is mixed using paddles at an average velocity gradient G of 100/s. The water temperature and the corresponding dynamic viscosity are 30°C and 0.798 x 10-3 Ns/m², respectively. The theoretical power required to achieve the stated value of G (in kW, up to two decimal places) is