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1. A water tube boiler operates at 1100 psia has the following characteristics: No. of riser 100 Riser wall thickness 0.22 in OD of riser 3in Length 105 ft No. of 90° Bends 14 lb water / lb steam 1200 lb steam/ hr-tube Circulation Ratio Steam per tube No. of Down Comer 1 Length of Down Comer 75 ft No. of 90° Bends 2 Calculate: a. The mean density b. Diameter of the Down-Comer for a 80 ft system height.

1. A water tube boiler operates at 1100 psia has the following characteristics: No. of riser 100 Riser wall thickness 0.22 in OD of riser 3in Length 105 ft No. of 90° Bends 14 lb water / lb steam 1200 lb steam/ hr-tube Circulation Ratio Steam per tube No. of Down Comer 1 Length of Down Comer 75 ft No. of 90° Bends 2 Calculate: a. The mean density b. Diameter of the Down-Comer for a 80 ft system height.

Elements Of Electromagnetics
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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1. A water tube boiler operates at 1100 psia has the following characteristics: No. of riser 100 Riser wall thickness 0.22 in OD of riser Length 3in 105 ft No. of 90° Bends 6 14 lb water / lb steam 1200 lb steam / hr-tube Circulation Ratio Steam per tube No. of Down Comer 1 Length of Down Comer 75 ft No. of 90° Bends 2 Calculate: a. The mean density b. Diameter of the Down-Comer for a 80 ft system height.
Transcribed Image Text:1. A water tube boiler operates at 1100 psia has the following characteristics: No. of riser 100 Riser wall thickness 0.22 in OD of riser Length 3in 105 ft No. of 90° Bends 6 14 lb water / lb steam 1200 lb steam / hr-tube Circulation Ratio Steam per tube No. of Down Comer 1 Length of Down Comer 75 ft No. of 90° Bends 2 Calculate: a. The mean density b. Diameter of the Down-Comer for a 80 ft system height.
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