● ● ● ● ● ● ● a) b) Example A cast iron pipe with 20 cm diameter and 15 mm wall thickness is carrying water from a reservoir. At the end of the pipe a valve is installed to regulate the flow. The following data are available: e = 0.15 mm (absolute roughness), L=1500 m (length of pipe), Q=40 1/sec (design flow), Eb=2.1 x 10° N/m² (bulk modulus of water), Ep=2.1 x 10¹¹ N/m² (modulus of elasticity of cast iron), ε = 0.25 (poisson's ratio). p = 1000 kg/m³ T=15° C. Ho = 1 Valve Find AP, AH , f, and f, due to the water hammer produced for the following cases: Assuming rigid pipe when t. = 10 seconds, and to = 1.5 seconds. Assuming elastic pipe when t = 10 seconds, and to = 1.5 seconds, if: 1. the pipe is free to move longitudinally, 2. the pipe is anchored at both ends and throughout its length, 3. the pipe has expansion joints.

● ● ● ● ● ● ● a) b) Example A cast iron pipe with 20 cm diameter and 15 mm wall thickness is carrying water from a reservoir. At the end of the pipe a valve is installed to regulate the flow. The following data are available: e = 0.15 mm (absolute roughness), L=1500 m (length of pipe), Q=40 1/sec (design flow), Eb=2.1 x 10° N/m² (bulk modulus of water), Ep=2.1 x 10¹¹ N/m² (modulus of elasticity of cast iron), ε = 0.25 (poisson's ratio). p = 1000 kg/m³ T=15° C. Ho = 1 Valve Find AP, AH , f, and f, due to the water hammer produced for the following cases: Assuming rigid pipe when t. = 10 seconds, and to = 1.5 seconds. Assuming elastic pipe when t = 10 seconds, and to = 1.5 seconds, if: 1. the pipe is free to move longitudinally, 2. the pipe is anchored at both ends and throughout its length, 3. the pipe has expansion joints.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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