How are the internal water tubes arranged in a Babcock and Wilcox boiler__________________?
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Answer: C. inclined
Explanation
A Babcock and Wilcox boiler is a classic water tube boiler featuring an arrangement of inclined water tubes. These straight water tubes connect front and rear headers to promote natural convective water circulation loops. The inclination of the tubes helps generate rapid steam bubbles and efficient thermal fluid movement. Water tube boilers circulate high pressure water inside tubes surrounded by hot combustion gases from the furnace. Inclined tube banks increase the effective heat transfer surface area exposed to radiant and convective heat. A steam and water drum positioned above the tube bank separates generated steam from circulating liquid water.
Completely horizontal water tubes fail to establish the necessary thermal siphon circulation currents efficiently. Vertical tube arrangements are typical of certain vertical boilers rather than classic Babcock and Wilcox designs. Combinations of horizontal and vertical layouts do not match the specific inclined header architecture of this boiler.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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