Calculations of the Unloading Operation in Liquid Cargo Service with High Density on Modern Product and Chemical Tankers Equipped with Hydraulic Submerged Cargo Pumps

摘要

The influence of different liquid cargo density on flow and drive characteristics of hydraulic submerged cargo pumps applied on modern product and chemical tankers is presented in the paper. Main parts of hydraulic structure of a/m system and cargo pump torque controller functions are described. The equation is given for the dependence of discharge rate at service of liquid cargoes (of the same viscosity but different density), based on existing drive and flow characteristics of cargo pumps, prepared for basic cargo.