Abstract
An electrochemical mass transfer technique has been employed to calculate values of the local transfer coefficients within a corrugated plate heat exchanger channel. The Reynolds number range tested was 150 to 11,500 for the following corrugation angles: 30°, 45°, 60° and 90°. The integral mass transfer results reveal that particularly at low corrugation angles, such as 30°, ‘pure’ laminar flow does not occur within the tested Reynolds number range. Three-dimensional maps of the local transfer coefficients also provide evidence for the nature of the fluidmotion. The research clearly shows that a core of fluid flows along the troughs of the corrugations, over the entire Reynolds number range investigated. At high Reynolds numbers, a peak at the base of the corrugation trough supports the theory that these crossing troughwise streams induce swirling FLow.
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