In the previous sections we have discussed the need for good storage facility design, analysis of fuel system contamination and choice of the appropriate filtration system. This can be considered as the static aspect of the operation. The operation of the facility is the dynamic part and this is equally important in terms of specification. A fuel storage and delivery system does not run itself and the use of clear operating and maintenance procedures is a most essential element in the integrity of a clean fuel supply. The following factors should be specified in documented operating procedures and form part of the routine operation and maintenance of the facility.
- Drains from the low point of the fuel storage tank – daily to weekly.
- Inspection of the tank vent/ breather – monthly to quarterly (replacement as required).
- Inspection of the tank cleanliness – annual – including dead bottom sampling.
- Cleaning of the tank – as needed, but consider entry at least every 10 years to check condition.
- Filter differential pressure – monitored and recorded daily.
- Filter sumps – drained daily when in use.
- Filter vessel inspection – annual.
- Filter element replacement – as required (Max DP or manufacturer’s recommended lifetime).
- Fuel cleanliness monitoring (Particle counter) – When operating in sights where the variability in fuel quality is an on-going problem, frequent (or even continual) fuel testing is recommended.
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