| 摘要 |
PROBLEM TO BE SOLVED: To uniformly distribute the medium in a plurality of tubes by partitioning a tank into a plurality of areas to a plurality of tube groups, connecting one end of a plurality of distribution passages to each region of different void ratio of the medium, and connecting the other end to each of a plurality of areas. SOLUTION: An inlet tank 11 is partitioned by partitioning plates 110-112 into first to third areas 113-115, and a plurality of tubes 10 are divided into three tube groups for each area. One end of the first to third distribution passages is connected to each area of different void ratio of the medium in a distribution part 30, and the other end is connected to the areas 113-115. In addition, the mass flow rate of the medium to be fed to each tube 10 is substantially uniformly distributed by increasing/decreasing at least one of the number of the tubes 10 in the areas 113-115 and the sum of the inner sectional area of the distribution passages 31-33 in each region. As a result, the temperature distribution in a heat exchanger 1 is made constant to improve the performance.
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