技术中心

一种新型板式换热器的设计及其传热特性的模拟研究 【英文篇名】 Design of a new plate heat exchanger and simulation study on its heat transfer property 【作者中文名】 任承钦; 汤广发; 张国强; 陈在康; 【作者英文名】 Ren Chengqin; Tang Guangfa; Zhang Guoqiang and Chen Zaikang Hunan University; Changsha; China; 【作者单位】 湖南大学; 【文献出处】 暖通空调, Hv 六边形隔板; 强化换热; 准逆流; 模拟研究; 【英文关键词】 flat plate heat exchanger; hexagonal dividing plate; heat transfer enhancement; quasi-counter flow arrangement; simulation study; 【摘要】 设计了一种隔板为六边形的板式换热器,基于干工况平衡流换热的模拟研究表明,该换热器具有准逆流换热的特点和强化换热作用。雷诺数在300～1000范围内,随着Re的增加,传热能力增加;当Re为900时,平均换热系数提高约一倍。实验验证模拟结果是有效的。 【英文摘要】 Simulates and researches the heat exchanger with hexagonal dividing plates. Results show that the exchanger can increase the heat transfer coefficient of air-to-air heat exchange and it has the property of quasi-counter flow heat exchanging. The heat transfer performance increases when Reynolds number increases within the ranger of 300 - 1 000. When Re reaches around 900, the average heat transfer coefficient can be increased by 100%. Experiment shows the results of simulation are valid.