Experimental Study on Effect of Buoyancy and Flow Acceleration on Heat Transfer of Supercritical CO2
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摘要: 在简单自然循环回路内开展了传热实验研究,分析浮升力效应和流动加速效应对自然循环条件下超临界CO2传热的影响,提出一个适用于自然循环工况的新传热关系式。研究结果表明:上述两种因素中浮升力效应是影响自然循环条件下超临界CO2传热的主要因素,提出的关系式能较好地预测自然循环条件下CO2传热特性。Abstract: Experiments were conducted in a natural circulation loop to investigate the effect of buoyancy and flow acceleration on the heat transfer of supercritical CO2. A new heat transfer correlation is developed based on the experimental data. Results show that the buoyancy is the main influencing factor for the heat transfer deterioration in natural circulation condition. The new correlation could predict the heat transfer of supercritical CO2 well.
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