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首页> 外文期刊>Chemical Engineering Research & Design: Transactions of the Institution of Chemical Engineers >LOCAL TRANSFER COEFFICIENTS IN CORRUGATED PLATE HEAT EXCHANGER CHANNELS
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LOCAL TRANSFER COEFFICIENTS IN CORRUGATED PLATE HEAT EXCHANGER CHANNELS

机译：本地传输系数在波纹板换热器通道

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摘要

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 degrees, 45 degrees, 60 degrees and 90 degrees. The integral mass transfer results reveal that particularly at low corrugation angles, such as 30 degrees, '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 fluid motion. 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. [References: 7]
机译：一种电化学传质技术被用来计算值的地方在波纹板转移系数换热器通道。测试以下150 - 11500起皱的角度:30度,45度,60度和90度。结果表明,特别是在低转移起皱的角度,比如30度,“纯”层流并不发生在测试雷诺数范围。当地的转移系数也提供依据流体运动的性质。研究清楚地表明,流体流动的核心沿槽的干硬后,整个雷诺数范围调查。高雷诺数,峰值的底部制波纹槽支持这些理论穿越troughwise流诱导回旋流。(引用:7)

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