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.