李志合,易维明,刘焕卫.陶瓷球固体热载体与粉状生物质的热平衡分析[J].农业机械学报,2009,40(7):103-106.
.Analysis of Ceramic Ball Heat Carrier and Biomass Powder[J].Transactions of the Chinese Society for Agricultural Machinery,2009,40(7):103-106.
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陶瓷球固体热载体与粉状生物质的热平衡分析   [下载全文]
Analysis of Ceramic Ball Heat Carrier and Biomass Powder   [Download Pdf][in English]
  
DOI:10.3969/j.issn.1000-1298.[year].[issue].[sequence]
中文关键词:  陶瓷球  粉状生物质  热平衡
基金项目:
李志合  易维明  刘焕卫
山东理工大学
中文摘要:为研究陶瓷球固体热载体与粉状生物质之间的换热规律,以90℃陶瓷球,在1.0、1.2和1.4kg/min质量流量下与室温生物质粉在垂直下降管散体颗粒换热实验台上进行了热交换实验,通过热平衡分析确定了不同陶瓷球流量下生物质粉总吸热速率中对流换热、导热各自所占的比例。研究表明热传导在生物质粉吸热升温过程中占61%~87%;当陶瓷球流量从1.0kg/min增大到1.4kg/min时,热传导所占的比例减小,而对流换热所占比例增大
Key Words:
Abstract:19%以上。In order to investigate the heat exchange principle between the ceramic balls heat carrier and biomass powder, heat exchange experiments were conducted with ceramic balls of 90℃ at 1.0, 1.2 and 1.4kg/min and biomass powder of ambient temperature in a vertical down tube heat transfer reactor. The percentages of heat conduction and heat convection of the total endothermic flux of the biomass powder were determined at different ceramic balls mass flow by heat balance analytic method. The results indicate that the heat conduction was the dominant heat transfer mechanism which reached 61%~87% during the heat exchange between the solid heat carrier and biomass powder. The heat conduction ratio decreased distinctly and the heat convection increased over 19% when the ceramic balls mass flow increased from 1.0kg/min to 1.4kg/min. 

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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