PRODUCT DESIGN OF SHELL AND TUBE HEAT EXCHANGER SYSTEM FOR EDUCATIONAL TRAINING KIT

Heat exchanger is the common device applied for heat transfer in thermodynamics, but the current commercial training package is complicated and limits the exploration by students. In this study, a complete shell and tube heat exchanger system was developed for educational purposes. The thermal efficiency of the system was examined by varying the flow rate and temperature. It was observed that the logarithmic mean temperature difference tends to decrease with the increase in inlet hot flow rate. Meanwhile, the effectiveness continues to decline as the inlet hot flow rate increases. The highest overall heat transfer (1.505 W/m2.K) was obtained when the flow rate was set as 10 LPM. It can be concluded that the higher the overall heat transfer coefficient, the lower the effectiveness of the heat exchanger.