Heat and Mass Transfer in a Paper Sheet During Drying Creativity Award

干燥期间纸张中的传热传质创意奖

• 批准号: 9017556
• 负责人: Jamal Yagoobi
• 金额: $ 9万
• 依托单位: Texas A&M Engineering Experiment Station
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-09-01 至 1994-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9017556&HistoricalAwards=false
• 关键词: Heat; Mass; Transfer; Paper; Sheet

Drying processes are used in almost all major industries from agriculture to plastics, yet are only 40-45% efficient. An advanced model for a drying system, presented in a user-friendly software format, could aid in both overall system efficiency and in the design and maintenance of the drier drums in the case of the pulp and paper industry. Although much work is available discussing heat and mass transfer through porous media, very few models have been developed for fibrous media and water removal systems. In general, existing models either incorporate too many assumptions or else fail to correlate with experimental data. %%% The intent of this research is to develop a suitable model which, once reduced by acceptable assumptions and approximations, can be solved numerically. A software package will then be developed to simulate entire drying systems.

干燥过程几乎用于所有主要行业， 从农业到塑料，效率只有40-45%。一种先进 干燥系统的模型，以用户友好的软件呈现 格式，可以帮助提高整体系统效率， 纸浆干燥机滚筒的设计和维护 造纸工业。虽然有很多工作是讨论热 和通过多孔介质的传质，很少有模型已经 为纤维介质和水去除系统而开发。总的来说， 现有模型要么包含太多假设，要么 无法与实验数据相关联。 %%% 本研究的目的是开发一个合适的模型 一旦通过可接受的假设和近似来减少， 可以用数字来解决。一个软件包，然后将 模拟整个干燥系统。