技术中心

【英文篇名】 Dynamic heat characteristics of radiators after a step change in flow rate 【作者中文名】 方立德; 高俊茹; 齐承英; 尹娟; 【作者英文名】 By Fang Lide; Gao Junru; Qi Chengying and Yin JuanHebei University; Baoding; Hebei Province; China; 【作者单位】 河北大学; 河北工程学院; 河北工业大学; 【文献出处】 暖通空调, Hv 阶跃变化; 散热器; 过渡过程; 热特性; 【英文关键词】 flow rate; step change; radiator; transient; thermal characteristics; 【摘要】 分析了供热流量阶跃变化后散热器内流体的流动和传热特性,提出了在过渡过程中散热器内温度分布曲线平移规律的假设,在此基础上推导出过渡过程中散热器散热量与时间的函数关系,并通过实验验证了该函数关系的正确性。 【英文摘要】 Analyses the flowing and heat transfer characteristics of fluid in radiators after a step change. Puts forward the level-moving presumption of temperature distribution curve in radiators during transient. On the basis of the presumption, deduces a function relationship of radiator’s heating capacities and time, and validates the relationship through experiment.