P15-06 プライマリサーフェス型熱交換器の性能に及ぼすプレート内部熱抵抗の影響

概要

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Two-dimensional conjugate conduction/convection numerical simulations were carried out for flow and thermal fields in the minimal unit model of a counter flow type corrugated plate heat exchanger to study the effects of plate thermal resistance on its thermal characteristics. Computations were carried out for two plate geometries having different plate thickness in the Reynolds number range of 100<Re<400. It was found that the case of thicker corrugated plate can have the better heat transfer performance compared with the thinner one, taking a higher value of the temperature effectiveness for unit length at a fixed pumping power. This is ascribed to the combined effects of change in plate shape due to the different plate thickness and the decrease of thermal resistance inside the solid part in tangential direction of the plate surface.
社団法人日本機械学会の論文
2002-06-14