F213 高低温水合流部の高サイクル熱疲労評価に関する研究 (2) : 設計基準チャート (2);非定常熱伝達特性と熱伝達増倍係数

概要

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Thermal Striping tests in mixing tees with hot and cold water were conducted for three types of flow conjunctions in order to establish an evaluation method for high-cycle thermal fatigue of piping systems. The main teets weer temperature fluctuation measurement tests carried out using metal pipes to evaluate the unsteady heat transfer coefficient based on measured temperature fluctuations of fluid and pipe wall. From the above data, heat transfer coefficients Fp of types A and B are approximately 0.9-3.0 times compared with steady heat transfer coefficient. That of type C is approximately 5.0 times.
社団法人日本機械学会の論文
2002-11-06