Thermo-Hydraulic Optimization of Shell and Externally Finned Tubes Heat Exchanger by the Thermal Efficiency Method and Second Law of Thermodynamics

The application aims to determine the thermal and hydraulic performance of externally finned, counter-flow, Shell, Tube Heat Exchangers (STHE). refers cooling machine oil flowing in annular region, including non-spherical cylindrical nanoparticles Boehmite Alumina. inlet temperature is equal 80 °C. Sea water a coolant with an 20°C. main parameter optimization process number finned tubes used for cooling. Another factor heat exchanger units connected by hairpin. fins per tube fixed, 34. flow set 4.0 kg/s. varies, maximum 5.0 quantities determined analysis are: effectiveness, actual transfer rates, pressure drops caused region fin system, viscous irreversibilities, fluid outlet temperatures, thermodynamic Bejan number. It was that increasing from two six leads better hydrodynamic performance. That is, it produces favorable cost-benefit, detriment high dissipation region. As object analysis, inclusion showed significant improvement increase dissipation, slight decline