技术中心

【英文篇名】 Experimental investigation of heat transfer coefficient of a three-dimensional enhanced heat transfer tube(part 1):enhanced boiling heat transfer 【下载频次】 ★ 【作者】 商萍君; 【英文作者】 Shang Pingjun Wuxi Institute of Technology; Wuxi; Jiangsu Province; China; 【作者单位】 无锡职业技术学院; 【文献出处】 暖通空调 , Heating Ventilating nbsp; 期刊荣誉：中文核心期刊要目总览 ASPT来源刊 中国期刊方阵 CJFD收录刊 【中文关键词】 池沸腾; 冷凝; 传热管; 传热系数; 强化传热; 【英文关键词】 pool boiling; condensing; heat transfer tube; heat transfer coefficient; enhanced heat transfer; 【摘要】 试验测试了一种可用于满液式壳管换热器的管外侧强化沸腾和强化冷凝的双效强化传热管。用热阻分离法计算了使用R134a制冷剂时制冷剂侧和水侧的表面传热系数。试验结果表明,在较大的热流密度(大于20kW/m2)下该管较传统的强化沸腾传热管具有较大的池沸腾表面传热系数;在较大的热流密度(大于15kW/m2)下较传统的强化冷凝管具有较大的管外冷凝表面传热系数。 【英文摘要】 Tests the enhanced heat transfer tube that can be used in flooded shell and tube heat exchangers.Calculates the heat transfer coefficients of refrigerant side and water side through heat resistance analysis method when adopting R134a as working fluid.The results show that the pool boiling performance of this tube is better than that of conventional enhanced boiling tube when the heat flux is higher than 20 kW/m2,and the condensing performance is also better than that of conventional enhanced condensing tube...