Design, Analysis and Optimization of Fin-and-Tube Type Heat Exchanger in Marine Diesel Engine

Abstract

Despite diesel engine technology seems close to be ending with decrease of electrical vehicles, it still has potential in marine, heavy-duty, and industrial areas. Marine diesel engines are frequently encountered in yachts, towing boats, and sailing boats. The cooling fluid is sea water in marine engines. The engine coolant water is cooled by shell and tube heat exchangers. Charge air is cooled by fin-and-tube type heat exchangers. In this study, fin-and-tube type heat exchanger’s design and flow analysis were investigated for the prototype six-cylinder inline engine. Heat exchanger’s header geometry was optimized to increase heat transfer, and an acceptable header design was decided upon with the analysis results.