State why oil in boiler water is serious, suggest likely sources, describe how the source is traced and how the whole steam plant is restored to oil-free conditions?
Short answer
flowchart TD
A[Oil in boiler water] --> B[Carry-over with steam]
B --> C[Damage to superheater/turbine]
A --> D[Sources: oil pumps, filters, heaters]
D --> E[Supervise feedwater quality]
E --> F[Tracing: check potential sources]
F --> G[Restoration: remove contaminated water]
- Seriousness: carry-over damages superheaters/turbines, reduces efficiency, indicates contamination failure
- Sources: oil pumps/filters/heaters leaks, furnace/burner spillage, contaminated condensate from machinery spaces
- Tracing: supervise feedwater quality, inspect potential sources, verify save-alls/gutters, test samples at multiple points
- Restoration: drain/replace boiler water, clean affected areas, verify containment, restore supervision, test/monitor until oil-free
- Governing instrument: IMO Resolution A.1023(26) Chapter 4 §4.4.4, 2009 MODU Code Chapter 4 §4.4.4, UK MSN 1907 Annex 1 Section 34 §5, UK chap10_r101 main §10.4.2.1, UK chap10_r2 main §10.4.3.2
Full answer
The full answer explains each point step by step, with the regulations and figures behind it and the discussion from other candidates. It is in the MEO Class IV section of the Marine One forum, open to members enrolled for the MEO Class IV exam.