| 竖直下降管换热实验台改进设计与实 |
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| 引用本文： | 袁廷璧,易维明,李志合,殷哲,刘焕卫,田中君.竖直下降管换热实验台改进设计与实[J].农业机械学报,2009,40(7):107-111. |
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| 作者姓名： | 袁廷璧 易维明 李志合 殷哲 刘焕卫 田中君 |
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| 作者单位： | 1. 山东理工大学轻工与农业工程学院,淄博,255091
2. 天津大学机械工程学院,天津,300072 |
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| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划) |
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| 摘 要： | 下降管式热解液化装置能够实现生物质热解液化.为了研究下降管中生物质半焦和陶瓷球两种散体混合下落的换热规律,在前期研究的基础上,对实验设备进行了改进设计,并将原实验物料--生物质粉更换为生物质半焦,使实验结果对实际装置的设计与改进更具指导意义.根据不同温度陶瓷球(50、60、70℃)与室温空气的换热实验,通过热平衡分析,得到了陶瓷球热载体与空气的对流传热系数h=600 W/(m2*K);陶瓷球与生物质半焦颗粒换热实验表明,不考虑边界效应时竖直管内温度呈线性分布;对流换热为竖直下降管系统热量传递的主要方式.
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| 关 键 词： | 热裂解 喂料器 下降管 半焦 |
Design and Experiment of Heat Transfer Platform for a Down-flow Tube |
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| Yuan Tingbi,Yi Weiming,Li Zhihe,Yin Zhe,Liu Huanwei,Tian Zhongjun.Design and Experiment of Heat Transfer Platform for a Down-flow Tube[J].Transactions of the Chinese Society of Agricultural Machinery,2009,40(7):107-111. |
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| Authors: | Yuan Tingbi Yi Weiming Li Zhihe Yin Zhe Liu Huanwei Tian Zhongjun |
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| Institution: | 1.School of Light Industry and Agricultural Engineering;Shandong University of Technology;Zibo 255091;China 2.School of Mechanical Engineering;Tianjin University;Tianjin 300072;China |
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| Abstract: | The down-flow tube reactor was used for biomass pyrolysis liquefaction and proved effective.In order to study the characteristics of heat transfer between ceramic balls and biomass chars,an improved experimental platform of down-flow tube was designed based on the former research.In addition,the former experimental material biomass particles were replaced by chars,and the result of experiment would be indicative to the industry application.Based on the heat exchange experiment among the ceramic balls at dif... |
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| Keywords: | Pyrolysis Feeder Down-flow tube Chars |
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