Question 122

With reference to carriage and pumping of liquefied cargo:

a)       Sketch \ Explain a suitable pumping system.

b)       (i) Why are submerged hydraulically-driven pumps not used for liquefied gas cargo?

(ii) How is overheating of pump shaft bearing avoided?

c)       State how risk of fire and explosion in cargo tanks is obviated both in loaded and discharged condition.