The core of the segment radiator is composed of many thin cooling pipes and heat sinks, and most of the cooling pipes adopt a flat circular section to reduce air resistance and increase the heat transfer area. The radiator core should have sufficient flow area to allow coolant to pass through, and there should be enough air flow area to allow enough air to pass through to remove the heat transferred from the coolant to the radiator.
There must also be enough heat dissipation area to complete the heat exchange between coolant, air and heat sinks. The tube belt radiator is made of corrugated heat dissipation strip and cooling pipe arranged in a rowed and welded. Compared with the segment radiator, the tube and band radiator can increase the heat dissipation area by about 12% under the same conditions, and the heat dissipation belt has a shutter-like hole that disturbs the airflow to destroy the adhesion layer of the flowing air on the surface of the heat dissipation belt and improve the heat dissipation capacity. According to the direction of coolant flow in the radiator, the radiator can be divided into longitudinal flow type and cross-flow type. Due to the vertical distribution of the heat dissipation core of the longitudinal flow radiator, the core is arranged up and down, the upper and lower water chambers, so the height size is relatively large, and it is more difficult to arrange it on cars with lower engine covers.
Therefore, some cars use radiator cores arranged horizontally, replacing the traditional upper and lower water chamber structure with water chambers on the left and right sides, and the coolant flowing left and right is the so-called cross-flow radiator. This heatsink has a larger width and a 10% increase in the effective area on the front of the core, resulting in an increased fan size and more windward area for smoother airflow. Each step is extremely rigorous, and once a step goes wrong, it will ruin the entire radiator, making it completely worthless.