Question: The pump in Fig P6.80 has its maximum efficiency at a head of 45 m. If it is used to pump ethanol at 20C through

The pump in Fig P6.80 has its maximum efficiency at a head of 45 m. If it is used to pump ethanol at 20°C through 200 m of commercial-steel pipe, what is the proper pipe diameter for maximum pump efficiency?

Step by Step Solution

★★★★★

3.39 Rating (152 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

For ethanol take 789 kgm3 and 12E3 kgm s For commercial steel take 0046 mm hence ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

E-ME-FM (700).docx

120 KBs Word File

Students Have Also Explored These Related Mechanical Engineering Questions!

The pump in Fig P6.80 is used to deliver gasoline at 20C through 350 m of 30-cm-diameter galvanized iron pipe. Estimate the resulting flow rate, in m3/s. (Note that the pump head is now in meters of...

The pump in Fig P3.183 draws gasoline at 20°C from a reservoir. Pumps are in big trouble if the liquid vaporizes (cavitates) before it enters the pump. (a) Neglecting losses and assuming a flow...

The pump in Fig P3.144 creates a 20°C water jet oriented to travel a maximum horizontal distance. System friction head losses are 6.5 m. The jet may be approximated by the trajectory of...

The pump having the characteristics shown in Problem 14.14 is used to pump water from one reservoir to another that is 95 m higher in elevation. The water will flow through a steel pipe that is 0.28...

University of Hartford Department of Civil, Environmental and Biomedical Engineering CE 320 Water Resources Engineering Spring Semester 2017 Lab #5 - Pump Performance Characteristics Report Outline...

Water is pumped between the two tanks described in Example 12.4 once a day, 365 days a year, with each pumping period lasting two hours. The water levels in the two tanks remain essentially constant....

just need the answers of 4.4, 4.9, 4.11, 4.12 and 4.14 Problems 107 P. 51 5 4.3 A centrifugal pump is required to develop a pressure rise of 30 psi when delivering 1000 gpm. If three motors with...

Repeat Prob. 1458E, but at a water temperature of 113F. Discuss. Data from Prob. 1458 A centrifugal pump is used to pump water at 77F from a reservoir whose surface is 20.0 ft above the centerline of...

A centrifugal pump is used to pump water at 77F from a reservoir whose surface is 20.0 ft above the centerline of the pump inlet (Fig. P1458E). The piping system consists of 67.5 ft of PVC pipe with...

Problem A 1 The pump in the following figure, with a diameter of 8 0 0 mm , will be used at 1 1 7 0 rpm to pump water at 2 0 C from one reservoir to another 3 5 m higher, through 5 0 0 m of pipe with...

During the first quarter, Roland Company incurs the following direct labor costs: January $40,000, February $30,000, and March $50,000. For each month, prepare the entry to assign overhead to...

Janis Walker, president of Western Mills, Inc., a leading textile manufacturing firm, was out jogging after a strenuous day at the office. While jogging, she focused her thinking on the firms...

What happens when you double-click on an amount in the general ledger?

Financial highlights taken from Prospectus on ADAMS Foods Ltd are given in the grid below. The IPO consisted of 29.143 million common (ordinary) stocks, representing 25% of the total post-IPO paid-up...

An independent survey commissioned by the ACTU found 80 per cent of workers had not had a pay rise that kept up with the cost of living in the last 12 months, with nearly half of us receiving no pay...

Which of the following statements are true about "RMR"? Select all that apply. Select one or more: a. RMR stands for "Reactive Measured Response" and states how many calories are burned during...

What is one downside of using RPE to prescribe exercise intensity ? Select one: a. RPE takes too long to explain. b. RPE is self reported, based on comfort, and varies widely from one individual to...

Ashley is a young, healthy adult. She is starting a new weightlifting routine and has never lifted weights before. What should she focus on before starting to lift heavy, difficult loads? Select one:...

Which triacylglycerol yields more energy on oxidation: one containing three residues of linolenic acid or three residues of stearic acid?

6. Understanding the NPV profile If profects are mutually exclusive, only one project can be chosen. The internal rate of return (IRR) and the net present value (NPV) methods will not always choose...

Consider an asset that costs $264,000 and is depreciated straight-line to zero over its 15-year tax life. The asset is to be used in a 8-year project; at the end of the project, the asset can be sold...

A project requires buying a $30,000 equipment, which will be depreciated straight-line to zero over its 5-year life. The project also requires an immediate increase in net working capital of $4,000,...