| 厌氧反应器系统动力学模型构建方法学研究 |
| 摘要点击 2582 全文点击 3997 投稿时间：2007-09-10 修订日期：2007-10-24 |
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| 中文关键词 系统动力学 厌氧消化 SD模型 结构模型 |
| 英文关键词 system dynamics anaerobic digestion SD model structural model |
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| 中文摘要 |
| 以系统动力学的基本概念、方法为基础提出了存在于变量之间的3种基本关系模式，并在此基础上提出针对复杂系统的分块建模理论.将以葡萄糖为进水基质的厌氧反应器划分为3个子系统，确定了该系统的系统结构图，在此基础上构建厌氧消化系统的SD模型.根据分块建模的优势及特点，对模型中的3个子系统采用不同的计算方式，通过对比模拟结果表明，SD模型静态模拟结果与实验数据、传统结构模型模拟结果之间的误差<10%，动态模拟结果与实际趋势一致，说明SD模型的模拟结果是可信的.根据其特性，对取消物化子系统的简化模型的模拟结果进行分析，表明根据不同的研究目的，选择合适的模型结构是必要的，采用系统动力学的分块建模方法有利于模型的简化与升级、减少计算量、提高模型的计算速度. |
| 英文摘要 |
| On the basis of system dynamic, we summed up 3 different patterns between variables, and put forward the theory of partitional modeling. We divided the model of anaerobic reactor into 3 blocks, and confirmed the system structural graphic. According to the character and advantage of partitional modeling, we construct the SD model of anaerobic reactor which is fed by glucose, and used a different calculation way for different blocks. Comparing with the lab data, errors between SD model, test data, and Andrews' model is less than 10%. We also analyzed the result of simplified model which removed the materialized block. It shows that result of SD model is credible; way of partitional modeling is propitious to the simplification and upgrade of model, reduction of the amount of calculation, and increase of calculation speed. |
