【作者】 赵锐； 程文龙； 江守利；

【Author】 Zhao Rui Cheng Wenlong Jiang Shouli(Dept. of Thermal Science & Energy Engineering, Univ. of Science & Technology of China, Hefei 230037)

【机构】 中国科学技术大学热科学和能源工程系；

【摘要】 通过实验研究了添加剂(正辛醇、异辛醇)对单个气泡氨水吸收传热传质效果的影响。氨气从喷嘴中进入吸收溶液,环境压力为0.1MPa,实验温度为20℃。实验共分为三组,吸收溶液分别是纯水、正辛醇水溶液(300ppm)、异辛醇水溶液(300ppm)。给出了最大气泡体积、气泡最大高度、发泡频率、吸收速率、喷嘴附近温度这些数据。结果表明,对于单个气泡而言,添加剂正辛醇和异辛醇都可以强化吸收,然而异辛醇的强化效果要好于正辛醇。更多还原

【Abstract】 Experimental study was performed on ammonia bubble absorption with additives(2EH, 1-Octonal). Ammonia was provided through a single orifice into distilled water under system pressure of 0.1 Mpa and temperature of 20℃. The mass concentration of additives was 0, 2EH(300ppm), 1-Octonal(300ppm). Bubble volume, diameter, height, frequency and Sherwood number was obtained. It was clarified that additives enhanced heat and mass transfer during bubble absorption for a single bubble, and the effect of enhancement with 1-Octonal was better than with 2EH.更多还原