A water pump is used to pump water from one large reservoir to another large reservoir...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
A water pump is used to pump water from one large reservoir to another large reservoir that is at a higher elevation. The free surfaces of both reservoirs are exposed to atmospheric pressure, as sketched in Fig. P14-45. The dimensions and minor loss coefficients are provided in the figure. The pump's performance is approximated by the expression Hvariable= H, - aV?, where shutoff head HO = 24.4 m of water column, coefficient a = 0.0678 m/Lpm2, available pump hlad Hvariable is in units of meters of water column, and capacity V/ is in units of liters per minute (Lpm). Estimate the capacity delivered by the pump. Answer: 11.6 Lpm = 7.85 m (elevation difference) 22-z1 = 2.03 cm (pipe diameter) KL, entrance 0.50 (pipe entrance) %3! =17.5 (valve) KL, valve = 0.92 (each elbow-there are 5) Klelbow %3! KL.. exit =1.05 (pipe exit) = 176.5 m (total pipe length) ɛ = 0.25mm (pipe roughness) V=0 Reservoir Reservoir Pump Valve FIGURE P14-45 A water pump is used to pump water from one large reservoir to another large reservoir that is at a higher elevation. The free surfaces of both reservoirs are exposed to atmospheric pressure, as sketched in Fig. P14-45. The dimensions and minor loss coefficients are provided in the figure. The pump's performance is approximated by the expression Hvariable= H, - aV?, where shutoff head HO = 24.4 m of water column, coefficient a = 0.0678 m/Lpm2, available pump hlad Hvariable is in units of meters of water column, and capacity V/ is in units of liters per minute (Lpm). Estimate the capacity delivered by the pump. Answer: 11.6 Lpm = 7.85 m (elevation difference) 22-z1 = 2.03 cm (pipe diameter) KL, entrance 0.50 (pipe entrance) %3! =17.5 (valve) KL, valve = 0.92 (each elbow-there are 5) Klelbow %3! KL.. exit =1.05 (pipe exit) = 176.5 m (total pipe length) ɛ = 0.25mm (pipe roughness) V=0 Reservoir Reservoir Pump Valve FIGURE P14-45
Expert Answer:
Related Book For
Fundamentals of Thermodynamics
ISBN: 978-0471152323
6th edition
Authors: Richard E. Sonntag, Claus Borgnakke, Gordon J. Van Wylen
Posted Date:
Students also viewed these mechanical engineering questions
-
A conveyor belt is used to move sand from one place to another in a factory. The conveyor is tilted at an angle of 14.0 above the horizontal and the sand is moved without slipping at the rate of 7.00...
-
A vacuum pump is used to evacuate a chamber where some specimens are dried at 50C. The pump rate of volume displacement is 0.5 m3/s with an inlet pressure of 0.1 kPa and temperature 50C. How much...
-
A geothermal pump is used to pump brine whose density is 1050 kg/m3 at a rate of 0.3 m3/s from a depth of 200 m, For a pump efficiency of 74 percent, determine the required power input to the pump....
-
Ms. Robin Nestor is provided with an automobile that is owned by her employer. The employer purchased the car in 2018 for $54,000, plus $7,020 in HST. During 2019, she drives a car a total of 72,000...
-
Figure 6.48a shows examples of products that can be obtained by slicing long extruded sections into discrete parts name several other products that can be made in a similar manner.
-
Explain the underlying rationale for global trade and explain the difference between comparative and absolute advantage.
-
A U.S. Treasury bond pays a 7% coupon on January 7 and July 7. How much interest accrues per \($100\) of principal to the bond holder between July 7, 2013, and August 9, 2013? How would your answer...
-
Wingman Distributing Company is expanding its supply chain to include a new distribution hub In South Bend. A key decision involves the number of trucks for the facility. The particular model of...
-
A bug sits on a record moving at a constant angular speed of 0 = 3.5 rad/s. Starting at t = 0 s, the record player is turned off and is given a constant angular acceleration of = 1.0 rad/s 2 . The...
-
The Country Store is a retail outlet for a variety of hardware and housewares. The owner is eager to prepare a budget and is especially concerned with her cash position. The company will have to...
-
If principal = Rs 1,00,000. rate of interest = 10% compounded half-yearly. Find (i) Interest for 6 months. (ii) Amount after 6 months. (iii) Interest for the next 6 months. (iv) Amount after one year.
-
Question 1 5 of 2 0 : Select the best answer for the question. 1 5 . Suppose you were creating a new table in an Access database, and you wanted to populate it with Excel data. You would most quickly...
-
A variable used as a counter should be initialized when it is declared:Select one:TrueFalse
-
How many rule combinations does QRadar have to test against event data, flow data, or offenses?
-
Sorting is a fundamental problem associated with arrays that seeks to locate in the array where target element is . Select one: True False
-
Suppose that a = 2 , b = 3 and c = 6 , then: ( ( b = 2 ) = a ) / / evaluates to false Select one: True False
-
Maurice has a savings account that earns 3% simple interest per year and a money market account that earns 3.5% simple interest. At the end of one year, Maurice received $34 in interest on a total...
-
If the cylinder described in Problem 21.3 were initially heated to 500F, how long would it take for the center of the cylinder to cool to 240F if it were constructed of a. Copper? b. Brass? c. Nickel?
-
Consider 100 m3 of atmospheric air which is an airwater vapor mixture at 100 kPa, 15C, and 40% relative humidity. Find the mass of water and the humidity ratio. What is the dew point of the mixture?
-
Saturated vapor R-134a at 500 kPa is throttled to 200 kPa in a steady flow through a valve. The kinetic energy in the inlet and exit flow is the same. What is the exit temperature?
-
As fresh poured concrete hardens, the chemical transformation releases energy at a rate of 2 W/kg. Assume the center of a poured layer does not have any heat loss and that it has an average heat...
-
Which strategy for entering a new international market should (a) an architectural design firm, (b) an online discount broker, and (c) a satellite TV channel consider, and why?
-
How can a firm design perceived control into a service encounter? Apply it to one face-to-face and one online encounter.
-
Give examples of how Internet and telecommunications technologies (e.g., mobile commerce [M-Commerce] and apps) have changed some of the services you use.
Study smarter with the SolutionInn App