シェルチューブ形熱交換器における胴側単相流の熱伝達 : 第2報,入口ノズル径の影響に関する数値的・実験的検討

概要

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Attention is focused on Flows and heat transfer around a tube bundle located near the inlet nozzle in segmentally baffled tubular heat exchangers. A finite-difference analysis is performed to determine Flow patterns, local heat transfer coefficients, and pressure drops across a tube bundle. They are found to agree within a reasonable accuracy with experimental data. Particular attention is directed to the effects of the diameter of an inlet nozzle on slow patterns and local heat transfer coefficients. A noteworthy finding is that, with the use of a relatively large inlet nozzle whose diameter is roughly half of the shell diameter, the variation of local heat transfer coefficient in a tube bundle is contained in a tolerable range of 30 pre cent.
社団法人日本機械学会の論文
1985-06-25