What is the primary structural difference between a Cornish boiler and a Lancashire boiler_________________?
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Answer: C. former contains one fire tube and latter contains two fire tubes
Explanation
Boiler classifications often depend on the number and arrangement of internal furnace tubes. The Cornish boiler features a single internal fire tube running through its shell. In contrast, the Lancashire boiler is structurally upgraded to contain two internal fire tubes. Shell boilers house water externally while hot combustion gases pass through internal tubes. Adding a second fire tube increases the heating surface area and steam generation capacity. Both designs belong to the traditional family of horizontal internal-fired fire-tube boilers.
These historical boilers were widely used in early textile mills and industrial factories. Engineers study these designs to understand the evolution of steam generation technology. Multi-tubular configurations improved thermal efficiency compared to single-tube boilers. Neither of these traditional shell boilers uses a water-tube configuration for main generation. Fire-tube boilers circulate hot gases inside tubes surrounded by water, unlike water-tube units. Single-tube designs have lower steam output capacities than dual-tube Lancashire variants.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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