In terms of surface temperature and uniformity of the whole temperature distribution, the experiment results for these
kinds of internal structures are similar to the simulation results. The heat exchanger with the fish-bone shaped structure presents the worse uniform temperature distribution. Besides, the heat exchanger with the accordion-shaped structure has
a slightly higher temperature than that of the scatter-shaped structure, so is the maximum temperature. Overall, the
accordion-shaped structure tends to be adopted in the subsequent application.