Research on optimize design method of ship sea water cooling system

Sea water cooling system is one of influential factors on ship economic performance. Research on optimize design method of ship sea water cooling system can realize energy-saving and emission reduction. By means of ISIGHT simulation and optimization environment, optimization design method was proposed, taking account of water temperature and thermal load. The results of one ship simulation show that: parallel operation scheme of 2 variable frequency sea water pumps control 26%~100% water flow, the economic performance on low temperature and thermal load was dramatically improved; the comprehensive efficiency of variable frequency pumps is the key factor.