4. Water at 100 psig is flowing inside a 2 in sch 40 pipe (D₁ = 0.1723 ft) at a rate of 25 lb/s, then it flows through an additional pipe of 1 in sch 40 (D2 = 0.0874 ft) and leaves this second pipe at 40 psig at an elevation 20 feet above the inlet to the large pipe. No pump is used in the set- up. The net heat imparted from the surrounding is 1500 BTU/hr. Calculate the total friction expressed in lbf-ft/lb.

4. Water at 100 psig is flowing inside a 2 in sch 40 pipe (D₁ = 0.1723 ft) at a rate of 25 lb/s, then it flows through an additional pipe of 1 in sch 40 (D2 = 0.0874 ft) and leaves this second pipe at 40 psig at an elevation 20 feet above the inlet to the large pipe. No pump is used in the set- up. The net heat imparted from the surrounding is 1500 BTU/hr. Calculate the total friction expressed in lbf-ft/lb.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Calorimetry

Measuring the heat transferred during chemical reactions or other physical processes is known as calorimetry. It comes under the branch of thermochemistry.

Question

4. Water at 100 psig is flowing inside a 2 in sch 40 pipe (D₁ = 0.1723 ft) at a rate of 25 lb/s, then
it flows through an additional pipe of 1 in sch 40 (D2 = 0.0874 ft) and leaves this second pipe
at 40 psig at an elevation 20 feet above the inlet to the large pipe. No pump is used in the set-
up. The net heat imparted from the surrounding is 1500 BTU/hr. Calculate the total friction
expressed in lbf-ft/lb.

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Step 1: Given:

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Step 2: velocity of water in 2-inch pipe

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Step 3: Friction factor for 2-inch pipe

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Step 4: The velocity of water in 1-inch pipe

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Step 5: Frictional pressure drop

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Step 6: Total Friction

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