| 摘要 |
Present invention relates to a channel system (2) for optimising the relation between pressure drop and heat, moisture and/or mass transfer of fluids flowing through said system, said channel system comprising at least one channel (4) having at least one channel wall (6a) and at least one flow director (7a, 7b) having a predetermined height (h1), said flow director extending in a fluid flow direction and transversely to said channel (4), and comprising an upstream portion (9), a downstream portion (11) and an intermediate portion (10) between said upstream and downstream portions (9, 11), said upstream portion (9) deviating, in said fluid flow direction, from said channel wall (6a) inwardly into said channel (4), and said downstream portion (11) returning, in said fluid flow direction, towards said channel wall (6a), wherein a transition (17) between said intermediate portion (10) and said downstream portion (11) is curved with a predetermined radius (R3). |
