A steam pipeline is 300 m long and has an outside diameter of 210 mm. It is intended to carry 30,000 kg/hour of saturated steam at 2000 Kpa. It is also expected that 11.60 KJ/ kg of steam flow will be lost to ther atmosphere through the pipe insulation. Assume there is no temperature drop across the pipe wall and that l the coefficient of thermal conductivity of the pipeline insulation used is 0.038 W/m/K. The design calls for an outer insulation temperature of 30°C. Determine: The outside diameter in mm of the insulation is most nearly: O 220.75 300.15 O 320.22 O 240.21

A steam pipeline is 300 m long and has an outside diameter of 210 mm. It is intended to carry 30,000 kg/hour of saturated steam at 2000 Kpa. It is also expected that 11.60 KJ/ kg of steam flow will be lost to ther atmosphere through the pipe insulation. Assume there is no temperature drop across the pipe wall and that l the coefficient of thermal conductivity of the pipeline insulation used is 0.038 W/m/K. The design calls for an outer insulation temperature of 30°C. Determine: The outside diameter in mm of the insulation is most nearly: O 220.75 300.15 O 320.22 O 240.21

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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