D semester

fuel properties questions

Find the words that are missing.

Ερώτηση 1 / 1 (Συμπλήρωση Κενών (Χαλαρή Ταυτοποίηση) — 0 βαθμοί) 

Fill in the gaps with the words:centrifuging deposits abrasive minimise measurement solid arise residue grinding deterioration

What problems can from unclean, uncentrifuged oil? Damage to fuel pumps and fuel valves, of exhaust valve seats, fouling of gasways and turbocharger blades. What causes fouling of gasways? Carbon . Which particles are particularly responsible for wear? Cat fines. How can you remove vanadium from turbocharger nozzle ring? By using a tool. How can you remove cat fines? By and a fine filter. Which parameter is not actually a of HFO quality? Viscosity. But you need to be aware of it in order to set heaters correctly, prior to pumping, cleaning or treating the fuel oil and before injection to the main engine. What do engines designed for operation on high sulphur fuels use to the effects of sulphur? Special lubricants.