... engines or turbines, Lubrication oil cooling, Recooling of circulated water for cooling cylinders, pistons, injection nozzles, Cooling of Baoder oil, ... and heavy fuel oil, Preheating of seawater for fresh water production, Heat recovery, Heat exchange to air-condition the passengers’ cabins and ... Acid, Caustic, High-temperature Oil, Steam JQ6B plate heat exchanger for water to water heat exchanger