2. Water is pumped through a plumbing system that contains four 90° elbows and one 180° bend. The pipes are made of cast iron with a diameter of 4" and a total length of 75'. Find the lost work with a flow speed of 15ft/s. Hint: Use Leq method, for a 90 degree elbow Leq/D = 32, for 180 degree bend Leq/D = 75.
2. Water is pumped through a plumbing system that contains four 90° elbows and one 180° bend. The pipes are made of cast iron with a diameter of 4" and a total length of 75'. Find the lost work with a flow speed of 15ft/s. Hint: Use Leq method, for a 90 degree elbow Leq/D = 32, for 180 degree bend Leq/D = 75.
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Transcribed Image Text:**Problem 2: Plumbing System Calculation**
Water is pumped through a plumbing system that contains four 90° elbows and one 180° bend. The pipes are made of cast iron with a diameter of 4 inches and a total length of 75 feet. Find the lost work with a flow speed of 15 feet per second.
**Hint:** Use the Leq (equivalent length) method. The Leq/D ratio for a 90° elbow is 32, and for a 180° bend, it is 75.
**Explanation:**
In this problem, we calculate the lost work due to fittings in a plumbing system using the equivalent length method. The equivalent length (Leq) accounts for energy losses caused by bends or fittings in the pipeline, expressed as an equivalent length of straight pipe. The values used for Leq/D are specific to the type of fitting.
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