基于Monte Carlo法强化管表面颗粒-析晶垢形成机理及预测模型研究

批准号:
51606049
项目类别:
青年科学基金项目
资助金额:
21.0 万元
负责人:
沈朝
依托单位:
学科分类:
E0601.工程热力学
结题年份:
2019
批准年份:
2016
项目状态:
已结题
项目参与者:
董建锴、曲德虎、王源、周超辉、王吉进、尚润心
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中文摘要
强化管因良好的传热性能作为冷却水换热器具有可观的节能效益和应用前景,但面临结垢问题。目前强化管污垢的研究主要针对一元污垢,而冷却塔水系统中强化管表面污垢呈二元交互特点,现有理论不能科学描述二元混合污垢成垢机理。本项目创造性提出基于Monte Carlo法研究强化管微观内表面二元污垢特性,首次从理论和实验角度研究二元污垢交互机理与生长机制。首先,实验确定强化管表面二元污垢组分间的定量关系及成垢过程中关键行为参数的定量数学描述。其次,基于Monte Carlo法建立多肋粗糙表面二元污垢形成过程的动态可视化模拟方法,揭示强化管表面多场耦合下各组分致垢物在成垢过程中的交互行为特性和力学规律。最后,提出二元污垢的Kern-Seaton模型机制的数学描述,建立强化管表面二元污垢热阻的预测模型。本研究为丰富和发展换热器表面多元污垢科学理论做出贡献,也为强化管设计、制作、应用提供理论依据与技术支持。
英文摘要
Enhanced tubes are widely used in cooling tower system as the condensers due to the high heat transfer performance, thus deemed an energy-saving technology which has wide application foreground. However, fouling will deposit on the surface of enhanced tubes after a long-term running which has a high thermal resistance and affects the heat transfer performance severely. Most of current research on the fouling of enhanced tubes only focused on single fouling, but the fouling of enhanced tubes in the application of cooling tower are combined fouling (Particulate & Precipitation fouling). Therefore, the current knowledge is not enough for researchers to understand the fouling on enhanced tubes in cooling tower. This study is proposed to investigate the characteristics of the fouling in enhanced tubes based on Monte Carlo method creatively, and the interactive performance of particulate fouling and precipitation fouling in the combined fouling of enhanced tubes would be studied for the first time. Firstly, the quantitative relationship between combined fouling and single fouling, and the specified correlations of critical parameters affecting development process of fouling would be determined experimentally. Secondly, a dynamic Monte Carlo simulation approach would be developed to visually simulate the growing of the combined fouling on enhanced surface. The interactive performance and force mechanical behavior between different kinds of single fouling in the development of combined fouling would be investigated based on the Monte Carlo simulation. Finally, a modified Kern-Seaton model will be developed for the combined fouling, and a generalized prediction model of combined fouling resistance on enhanced tubes would be developed as well. This study will enrich and develop the knowledge system of combined fouling on irregular surface, and also provide technological support for the design, manufacture and use of enhanced tubes in industry.
本项目创造性提出基于Monte Carlo法研究强化管微观内表面二元污垢特性,首次从理论和实验角度研究二元污垢交互机理与生长机制。为丰富和发展换热器表面多元污垢科学理论做出贡献,也为强化管设计、制作、应用提供理论依据与技术支持。首先,实验确定强化管表面二元污垢组分间的定量关系及成垢过程中关键行为参数的定量数学描述。其次,基于Monte Carlo法建立多肋粗糙表面二元污垢形成过程的动态可视化模拟方法,揭示强化管表面多场耦合下各组分致垢物在成垢过程中的交互行为特性和力学规律。最后,提出二元污垢的Kern-Seaton模型机制的数学描述,建立强化管表面二元污垢热阻的预测模型。
期刊论文列表
专著列表
科研奖励列表
会议论文列表
专利列表
Experimental investigation on the cooling performance of a novel grooved radiant panel filled with heat transfer liquid
新型导热液体沟槽辐射板冷却性能实验研究
DOI:10.1016/j.scs.2019.101638
发表时间:2019-10-01
期刊:SUSTAINABLE CITIES AND SOCIETY
影响因子:11.7
作者:Lv, Guoquan;Shen, Chao;Chen, Dong
通讯作者:Chen, Dong
DOI:10.1016/j.ijheatmasstransfer.2017.03.025
发表时间:2017-07
期刊:International Journal of Heat and Mass Transfer
影响因子:5.2
作者:Shen Chao;Wang Lin;Ford Steven E;Zhang Cancan;Wang Xinlei
通讯作者:Wang Xinlei
Interaction between particulate fouling and precipitation fouling: Sticking probability and deposit bond strength
颗粒污垢和沉淀污垢之间的相互作用:粘附概率和沉积物粘合强度
DOI:10.1016/j.ijheatmasstransfer.2019.118700
发表时间:2019-12
期刊:International Journal of Heat and Mass Transfer
影响因子:5.2
作者:Wang Yuan;Shen Chao;Tang Zhenbo;Yao Yang;Wang Xinlei;Park Benjamin
通讯作者:Park Benjamin
An experimental investigation on a novel WWSHP system with the heat recovery through the evaporation of wastewater using circulating air as a medium
以循环空气为介质通过废水蒸发回收热量的新型WWSHP系统的实验研究
DOI:10.1016/j.enbuild.2019.03.023
发表时间:2019-05
期刊:Energy and Buildings
影响因子:6.7
作者:Shen Chao;Lei Zhuoyu;Lv Guoquan;Ni Long;Deng Shiming
通讯作者:Deng Shiming
An Improved Modeling Method of Water-side Fouling in Enhanced Tubes of Condensers in Application of Cooling Water Tower
冷却水塔冷凝器强化管水侧结垢的改进建模方法
DOI:10.1007/s11630-018-1021-4
发表时间:2018-07
期刊:Journal of Thermal Science
影响因子:2.5
作者:Shen Chao;Wang Yuan;Gao Rong;Yao Yang;Wang Xinlei
通讯作者:Wang Xinlei
基于微纳光学的建筑透明围护结构光/热解耦与协同调控机制
- 批准号:--
- 项目类别:面上项目
- 资助金额:58万元
- 批准年份:2021
- 负责人:沈朝
- 依托单位:
国内基金
海外基金
