技术中心

【英文篇名】 Flowing block and heat transfer characteristics of urban sewage as cold and heat source of heat pumps 【作者中文名】 吴荣华; 孙德兴; 张成虎; 马光兴; 【作者英文名】 By Wu Ronghua★; Sun Dexing; Zhang Chenghu and Ma Guangxing; 【作者单位】 哈尔滨工业大学; 【文献出处】 暖通空调, Hv 冷热源; 流动阻塞; 换热特性; 【英文关键词】 urban sewage; cold and heat source; flowing block; heat transfer characteristics; 【摘要】 以实际工程的污水换热器为研究对象,连续测试了污水流量随时间的变化,得到了以30天为周期的5个流量分区,分析了各区的阻塞特性。根据测试得到的温度数据,通过反算得出不同雷诺数下的换热系数,给出了污水管内流动换热的准则关联式。 【英文摘要】 Aiming at the sewage heat exchangers in actual engineering, continuously tests the variation of sewage flow rate, and obtains five flux regions in 30 days, and analyses the block characteristics for each region. Obtains the heat transfer coefficient for different Re number based on the measured temperature data, and proffers the correlation formulas about the sewage heat transfer in piping. 【基金】 黑龙江省科技攻关资助项目(编号:04GZC1474)